Halogen Free Flame Retardant for Elastomer
| HS Code | 156866 |
| Flammability Classification | High flame retardancy (e.g., UL 94 V - 0 or equivalent) |
| Halogen Content | Essentially zero halogen elements (chlorine, bromine, fluorine, iodine) |
| Thermal Stability | Good stability under high temperatures, maintaining properties up to [X] °C |
| Mechanical Properties | Maintains good elasticity and tensile strength similar to non - flame - retardant elastomers |
| Chemical Resistance | Resistant to common chemicals like acids, alkalis, and solvents |
| Weather Resistance | Resistant to UV light, ozone, and moisture, suitable for outdoor use |
| Smoke Density | Low smoke generation during combustion |
| Toxicity | Low - toxicity emissions during combustion, minimal release of harmful gases |
| Processability | Compatible with common elastomer processing methods like extrusion, injection molding |
| Electrical Properties | Good electrical insulation properties, maintaining resistivity |
As an accredited Halogen Free Flame Retardant for Elastomer factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 5 - kg bags of Halogen - Free Flame Retardant for Elastomer, well - sealed for safe storage. |
| Storage | Halogen - Free Flame Retardant for Elastomer should be stored in a cool, dry place. Keep it away from direct sunlight, heat sources, and ignition points. Store in a well - ventilated area to prevent the build - up of vapors. Ensure containers are tightly sealed to avoid moisture absorption and contamination, maintaining its quality and effectiveness for use in elastomer applications. |
| Shipping | Halogen - Free Flame Retardant for Elastomer is shipped in sealed, sturdy containers to prevent moisture and contamination. Shipment follows strict chemical transport regulations, ensuring safe delivery to destinations worldwide. |
Competitive Halogen Free Flame Retardant for Elastomer prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please call us at +8615380400285 or mail to sales2@liwei-chem.com.
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Historical Development
Since modern technology has changed with each passing day, elastomers have been widely used in many fields. However, they are protected by flame-resistant composites and rely on halogen-based flame retardants at first. Although their effectiveness is outstanding, toxic fumes escape during incineration, which damages the environment and causes health concerns. Later scholars have studied halogen-free flame retardants, aiming to be green and sustainable. By the end of the 20th century, phosphorus-based, nitrogen-based and inorganic fillers were gradually emerging, and various technologies were becoming more and more perfect. Not only is the flame retardant effect comparable to halogen-based, but also reduces toxicity and environmental burden. Today, halogen-free flame retardant solutions and polymer modification have been developed together to meet the needs of different elastomers, ensuring product performance and complying with environmental protection regulations. Its development process has witnessed the advancement of science and technology and the pursuit of human safety and ecological coexistence, which is really one of the major chapters in the transformation of the
Product Overview
This product is called "halogen-free flame retardant". It is designed for elastomer materials and is an important device for fire safety of many polymer products. Its body is halogen-free, and the formula is exquisite. It has neither the fear of toxic smoke and dust, nor the worry of environmental burden. In case of fire, it will self-retardant flame, with stable performance. The elastomer is heat-resistant and anti-scorching, and has excellent performance. It is suitable for cables, seals, pipes, sealants and other fields, and has both environmental protection and high-efficiency flame retardant performance. It has good compatibility with the substrate, easy forming, and no reduction in mechanical properties. It is an ideal choice to follow the general trend of environmental protection and meet the needs of the industry. It is an ideal choice to improve material performance and safety.
Physical & Chemical Properties
It is a substance, shaped like a bead, colored or colorless and yellowish, with a tough texture and moderate brittleness. Its properties are stable at room temperature, without corrosion, and it begins to dissolve when heated. When the temperature is high, it is easy to form a gel, and when cooled, it coagulates. It dissolves in polar solvents, but it is difficult to dissolve in non-polar liquids. However, it is compatible with rubber and is soft to mix. Its chemical properties are mild, and it is not easy to co-react with acids and bases. In case of open flames or strong oxides, it can exert flame retardant function, generating a dense smoke screen and a dense carbon layer, which can isolate the flame potential and contain combustion. Halogen-free, burning does not release halogen smoke, so it is harmless to people and has no environmental worries. Its molecular structure is unique, endowing hot topic stability, high ignition point, mild decomposition, suitable for long-term use.
Technical Specifications & Labeling
This product is called Halogen Free Flame Retardant, which is mainly used for flame retardant modification of elastomeric materials. Its properties are white or light-colored powder, with good dispersion and little odor. It has mild chemical properties and is not easy to decompose at high temperature. The melting point is higher than 280 degrees Celsius. It is weather-resistant and migration-resistant, and has excellent thermal stability. The particle size is fine, with an average diameter of about 5 microns, which is easy to mix evenly. Phosphorus and nitrogen elements are its core components, and the halogen content is less than 0.1%, which fully meets the European Union RoHS and REACH environmental protection standards. The recommended addition amount is 20-30%, which can help the substrate reach the flame retardant grade such as UL94 V-0, and does not affect the toughness and mechanical properties of the elastomeric body. Storage should be sealed and dry The outer packaging is mostly 25kg kraft paper bags, and the product batch number, production date and manufacturer information are clearly attached.
Preparation Method
Take phosphate ester and melamine as the main raw materials, mixed with organosilane, and put them into the reaction kettle in turn. Add an appropriate solvent, stir warmly to make it evenly mixed. Then slowly add a catalyst, such as p-toluenesulfonic acid, to regulate the acidity and alkalinity, and promote the occurrence of polycondensation reaction. React at medium temperature and constant temperature to gradually form a polymer structure. During this period, phosphorus and nitrogen components are cross-linked, and silane is inserted into the skeleton to enhance its thermal stability and flame retardancy. After the viscous substance is condensed, it is cooled, filtered and dried to obtain a halogen-free flame retardant finished product. Its catalytic mechanism is acid to promote polycondensation, activate functional groups, and promote the reaction rate. The ternary synergy enhances the material's smoke suppression and flame retardant effect.
Chemical Reactions & Modifications
Halogen flame retardants are caused by the release of halogen atoms. Although they can suppress fire, they may cause environmental and health problems. Today, people use halogen-free flame retardants to modify elastomers, which are mostly based on elements such as phosphorus and nitrogen, or combined with expanded graphite, aluminum hydroxide, and magnesium hydroxide. Once heated, phosphorus flame retardants release phosphoric acid or polyphosphoric acid when decomposing, which promotes the carbonization of the polymer surface and generates a capping film, which can actually isolate oxygen and heat. Nitrogen mixtures release ammonia in case of flame, dilute flammable gases, and also help to block heat. Aluminum hydroxide and magnesium decompose at high temperature, release water and absorb heat, and their water vapor can dilute the atmosphere of the fire scene, making it difficult to burn. Compound modification, complementary to its short, increase bonding, promote dispersion, and strive to improve flame retardant efficiency. Therefore, today's elastomer flame retardant, halogen-free, modified chemical lean, improve its performance and improve the environment.
Synonyms & Product Names
Halogen flame-free and suppressive products, also known as halogen flameless flame retardants, or soft-body fireproof additives. There are many other names, including "environmentally friendly flame retardant additives", "elastomer halogen-free flame retardant powder" and "elastic material halogen-free flame retardant". Also known as "green flame retardant" or "low-smoke halogen-free elastic flame retardant" in the market, it refers to this product. Its product number, or the selection of "HALOX-FR", or the name of "GreenFlame E", or the listing of "Eco-Safe FlexGuard", are all named by each factory. There are also "environmentally friendly elastic flame retardant particles" and "halogen-free elastomer modifier additives" in trade currencies. Although the names are different, they are all based on halogen-free, low smoke, environmental protection, and flame retardant. They are widely used in rubber, elastomer and other products. Their functions are the same, but the titles vary from place to place, and they are specially designed for the industry to identify.
Safety & Operational Standards
Halogen Free Flame Retardant for Elastomer is a commonly used flame retardant product for polymer materials such as rubber to contain fires and ensure the safety of all devices. When used in various processes, its safety and operation must be carefully maintained. Although its physical properties are halogen-free and do not produce toxic chlorine or bromine gas, it should not be taken lightly. When operating, it must be ventilated in a cool and dry place. Do not expose to the hot sun and do not accumulate moisture to prevent its qualitative change. The device should also be clean and free of oil impurities to avoid chemical reactions. Wear protective gloves and goggles to prevent direct contact with the skin. If there is any contamination, rinse with water immediately.
Blending and mixing should be carried out according to the process. Do not overdo or mix foreign objects. When heating, the temperature must be controlled and the flame should be kept quiet, and the sudden rise and fall should be avoided to ensure uniformity and prevent the material from mutating. In case of small amounts of dust flying, the operator should partially exhaust or wear a mask to avoid inhalation. The operation site is far away from the fire source, and smoke and candles should not be burned. The equipment should be covered with insulating materials to prevent static electricity. The storage container should be tight and clearly marked, and should not be placed with acids, alkalis and other reactants. Every operation, the remaining materials should be sealed in time. The leftovers should be swept away and cleaned up. Waste recycling guidelines should be properly handled.
decomposed by heat, although no toxic halogens are released, there are still trace amounts of organic matter escaping. If it is used for a long time, it must be matched with ventilation equipment. New employees must be trained and familiar with safety regulations, and must not operate without authorization. Equipment maintenance, power off first, then maintenance, sudden abnormalities, evacuate first, then dispose of, do not take risks rashly. Regularly check the protective facilities every month and remain vigilant. In case of fire, seal the gas source for the first time, turn on the fire extinguisher for the second time, and report to the rescue department. After the operation is completed, take off the protective clothing, and take a clean bath on your hands.
Abide by the norm, not only to ensure work safety, but also to extend the service life of the device, and eliminate disasters. You need to be single-minded and strict about slack. In this way, you can make the Halogen Free Flame Retardant for Elastomer play its effect, and everyone is safe.
Blending and mixing should be carried out according to the process. Do not overdo or mix foreign objects. When heating, the temperature must be controlled and the flame should be kept quiet, and the sudden rise and fall should be avoided to ensure uniformity and prevent the material from mutating. In case of small amounts of dust flying, the operator should partially exhaust or wear a mask to avoid inhalation. The operation site is far away from the fire source, and smoke and candles should not be burned. The equipment should be covered with insulating materials to prevent static electricity. The storage container should be tight and clearly marked, and should not be placed with acids, alkalis and other reactants. Every operation, the remaining materials should be sealed in time. The leftovers should be swept away and cleaned up. Waste recycling guidelines should be properly handled.
decomposed by heat, although no toxic halogens are released, there are still trace amounts of organic matter escaping. If it is used for a long time, it must be matched with ventilation equipment. New employees must be trained and familiar with safety regulations, and must not operate without authorization. Equipment maintenance, power off first, then maintenance, sudden abnormalities, evacuate first, then dispose of, do not take risks rashly. Regularly check the protective facilities every month and remain vigilant. In case of fire, seal the gas source for the first time, turn on the fire extinguisher for the second time, and report to the rescue department. After the operation is completed, take off the protective clothing, and take a clean bath on your hands.
Abide by the norm, not only to ensure work safety, but also to extend the service life of the device, and eliminate disasters. You need to be single-minded and strict about slack. In this way, you can make the Halogen Free Flame Retardant for Elastomer play its effect, and everyone is safe.
Application Area
Halogen has no added flame retardant, and is used in elastomers such as rubber, which is more and more excellent. Its mild nature and environmental friendliness are widely adopted in many fields such as automobiles, aerospace, electronics, cables, medical apparatus, etc. Wire and cable, because they do not cause smoke poisoning, ensure safety, and are safe for human use; in electronic components, they can be fireproof and flame retardant, and avoid circuit disasters; automotive rubber and seals, which are resistant to high temperature without reducing toughness, and adapt to harsh environments; medical apparatus, which is non-toxic and harmless to win the trust of patients. It is also widely found in building seals, transportation equipment, and household equipment, and each has its own effect. Its complexity is compatible with various types of polymers, which can improve the flame retardant grade of products without damaging their original physical properties, so it is an indispensable choice for modern green manufacturing.
Research & Development
Cover elastomers are essential for many materials used in today's world. However, due to their flammability, it is urgent to take good measures to prevent fire. In the past, flame retardant methods relied mostly on halogen-containing agents, but halogens were harmful to the environment and damaged human health. The sound of prohibition was growing. So there are people with lofty ideals who specialize in halogen-free flame retardant methods, persevering and striving for excellence. Only seek safety and environmental protection, and share excellent performance. Its materials mostly borrow phosphorus, nitrogen, inorganic and other components, and introduce new types of synergistic compatibility, trying not to damage the original properties of elastomers, but also to overcome the difficulty of processing. After testing, the deployment of 100-end, not only to maintain flame retardant efficiency, but also to increase heat resistance and mechanical protection. It is a new halogen-free flame retardant elastomer material that has gradually been used in cables, electronics, automobiles and other fields, and is famous day by day. Its development should be innovative, follow the principle, evolve with the times, and achieve perfection in the way of chemical materials.
Toxicity Research
Organic polymer materials are widely used in technology, but their flammability is very high, and they are flammable in case of fire, which damages safety. Today, halogen-free flame retardants are used in elastomers to replace traditional halogens in order to reduce smoke and inhibit toxicity. However, its toxicity cannot be ignored. In vitro experiments were used to expose cells to different concentrations to see whether they survived or not, and whether their functions were impaired. After analysis, under conventional doses of halogen-free flame retardants, there was no significant change in cell physiology, and the toxicity was significantly lower than that of halogens. Animal tests were supplemented, and oral and percutaneous administration showed no symptoms of acute poisoning, and no abnormalities in blood, liver and kidney functions. Long-term exposure did not cause teratogenic or mutagenic harm. However, its decomposition products and gases after high temperature exposure still need to be strictly evaluated and cannot be ignored. Although the safety is better than that of halogens, its total toxicity data has yet to be carefully studied by future generations.
Future Prospects
Halogen free flame retardant, suitable for elastomer materials, has begun with the tide of environmental protection and has become more and more excellent. Therefore, everyone is working together to reduce pollution and improve product safety, and will surely rely more and more on such new materials. Looking at the ever-changing technology, the process is more refined, or it can further improve its flame retardant efficiency and take into account excellent physical properties. In the future, the demand for green halogen-free flame retardant in electric vehicles, electronic devices, medical and other fields will be unparalleled. It is expected that its formula will become green and efficient, the process will be simpler and easier to control, and the cost will also be reduced. If it can be coordinated with other cutting-edge materials, it can also expand the scope of application. From this perspective, halogen free flame inhibitors have a broad future ahead in the global trend of environmental protection and material progress, and can be looked forward to.
Where to Buy Halogen Free Flame Retardant for Elastomer in China?
As a trusted Halogen Free Flame Retardant for Elastomer manufacturer, we deliver:
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Whether you need industrial-grade quantities or specialized customizations, our team ensures reliability at every stage—from initial specification to post-delivery support.
As a leading Halogen Free Flame Retardant for Elastomer supplier, we deliver high-quality products across diverse grades to meet evolving needs, empowering global customers with safe, efficient, and compliant chemical solutions.
What are the main ingredients of Halogen Free Flame Retardant for Elastomer?
Halogen Free Flame Retardant for Elastomer is a developer of modern materials science to deal with environmental pollution and human health concerns. It is halogen-free and does not contain harmful halogen elements such as chlorine and bromine. When halogen flame retardants are burned, they often release toxic fumes, which damage the environment and harm life. Therefore, people are creating halogen-free flame retardants, which are widely used in elastomeric materials.
Its main components are mostly inorganic and organic compounds. Inorganic ones, especially aluminum hydroxide and magnesium hydroxide. Aluminum hydroxide, chemical formula Al (OH), stable, can decompose in high temperature environment, absorb a lot of heat, release water to dilute flammable gas, and form a thermal insulation layer on the surface to cut off oxygen and suppress flame. Magnesium hydroxide, chemical formula Mg (OH) -2, has similar properties to the former, with a slightly higher decomposition temperature, especially suitable for elastomers processed at high temperatures. The use of both can take into account the needs of different temperature ranges and improve the flame retardant effect.
In addition, organophosphorus-based flame retardants are also commonly used, such as ammonium polyphosphate, phosphonates, etc. They form an expanded carbon layer when burned to isolate oxygen and prevent heat transfer. In some systems, it may be necessary to add a little nitrogen-based flame retardants, such as melamine and its derivatives, to use the structure of nitrogen to promote synergistic flame suppression during thermal decomposition. Silicon-based compounds, such as siloxanes and silicates, are also selected to form a film after thermal decomposition to protect the surface and increase the flame retardancy.
In order to improve the processing performance and dispersion, synergistic agents and surface treatment agents are often used. Synergistic agents such as antimonate, zinc boron glass, etc., can enhance the flame retardant ability of the main material. Surface treatment agents, such as silane coupling agents, are evenly mixed with flame retardant particles in the elastomer to maintain their mechanical properties. There are also compounded ingredients to take into account environmental protection, flame retardancy, and cost considerations.
In summary, halogen-free flame retardants are mainly aluminum hydroxide and magnesium hydroxide, supplemented by organophosphorus, nitrogen and silicon compounds, and matched with synergists and surfactants. The various components complement each other, which can not only ensure the flame retardant effect of the material, but also be environmentally friendly. It conforms to the general trend of green development and is a good strategy for the elastomer industry.
Its main components are mostly inorganic and organic compounds. Inorganic ones, especially aluminum hydroxide and magnesium hydroxide. Aluminum hydroxide, chemical formula Al (OH), stable, can decompose in high temperature environment, absorb a lot of heat, release water to dilute flammable gas, and form a thermal insulation layer on the surface to cut off oxygen and suppress flame. Magnesium hydroxide, chemical formula Mg (OH) -2, has similar properties to the former, with a slightly higher decomposition temperature, especially suitable for elastomers processed at high temperatures. The use of both can take into account the needs of different temperature ranges and improve the flame retardant effect.
In addition, organophosphorus-based flame retardants are also commonly used, such as ammonium polyphosphate, phosphonates, etc. They form an expanded carbon layer when burned to isolate oxygen and prevent heat transfer. In some systems, it may be necessary to add a little nitrogen-based flame retardants, such as melamine and its derivatives, to use the structure of nitrogen to promote synergistic flame suppression during thermal decomposition. Silicon-based compounds, such as siloxanes and silicates, are also selected to form a film after thermal decomposition to protect the surface and increase the flame retardancy.
In order to improve the processing performance and dispersion, synergistic agents and surface treatment agents are often used. Synergistic agents such as antimonate, zinc boron glass, etc., can enhance the flame retardant ability of the main material. Surface treatment agents, such as silane coupling agents, are evenly mixed with flame retardant particles in the elastomer to maintain their mechanical properties. There are also compounded ingredients to take into account environmental protection, flame retardancy, and cost considerations.
In summary, halogen-free flame retardants are mainly aluminum hydroxide and magnesium hydroxide, supplemented by organophosphorus, nitrogen and silicon compounds, and matched with synergists and surfactants. The various components complement each other, which can not only ensure the flame retardant effect of the material, but also be environmentally friendly. It conforms to the general trend of green development and is a good strategy for the elastomer industry.
How is Halogen Free Flame Retardant for Elastomers Evaluated?
In order to evaluate the flame retardant efficacy of Halogen Free Flame Retardant for Elastomer, it is necessary to review the test procedures in detail. All evaluations should follow international standards, such as UL 94, LOI method (limiting oxygen index) and vertical and horizontal combustion tests. When preparing the sample, according to the formula, mix the main material and flame retardant in proportion, and extrude and press the tablet to make a sample of standard size, which can be easily compared. At the beginning of the test, contact with an open flame to observe the start and end of the flame, combustion rate, carbonization length, and also remember the extinguishing time. In addition, the LOI method places the mixing material in an oxygen-nitrogen mixed gas stream, and records the minimum oxygen concentration to maintain combustion. The higher the value, the better the flame resistance of the material. The UL 94 rule is divided into V-0, V-1, and V-2 levels. The dripping and reignition conditions are observed to determine the performance of the flame retardant.
Secondly, the physical properties of the flame retardant on the elastomer should also be considered. In order to prevent fire, the material needs to be flexible and strong. After the test, mechanical tests such as stretching, tearing, and rebound must be performed to check whether its physical properties have changed, and to weigh the balance between flame retardancy and practicality. In addition, thermogravimetric analysis (TGA) monitors the change of mass loss of the material at high temperature, so as to judge the thermal stability of the flame retardant. Cone calorimeter is also beneficial, which can measure the heat release rate and smoke density during combustion, and carefully observe the fire hazard in practical use.
As for the combustion residue, the microstructure and element distribution can be analyzed by scanning electron microscopy (SEM) or energy spectrum (EDS) to explain the mechanism of action of flame retardants. For example, halogen-free flame retardants use phosphorus or nitrogen to promote carbonization and block oxygen penetration. If the carbon layer is dense and continuous, the flame retardant performance is excellent.
Finally, the evaluation must take into account the environment and safety. Halogen-free flame retardants should not release harmful gases, and their decomposition products are non-toxic and pollution-free, in line with the purpose of green materials. To sum up, the advantages and disadvantages of flame retardant effect must be combined with physical, chemical and environmental data to make a fair conclusion. If only one-sided view of one end, it is difficult to make a thorough judgment.
Secondly, the physical properties of the flame retardant on the elastomer should also be considered. In order to prevent fire, the material needs to be flexible and strong. After the test, mechanical tests such as stretching, tearing, and rebound must be performed to check whether its physical properties have changed, and to weigh the balance between flame retardancy and practicality. In addition, thermogravimetric analysis (TGA) monitors the change of mass loss of the material at high temperature, so as to judge the thermal stability of the flame retardant. Cone calorimeter is also beneficial, which can measure the heat release rate and smoke density during combustion, and carefully observe the fire hazard in practical use.
As for the combustion residue, the microstructure and element distribution can be analyzed by scanning electron microscopy (SEM) or energy spectrum (EDS) to explain the mechanism of action of flame retardants. For example, halogen-free flame retardants use phosphorus or nitrogen to promote carbonization and block oxygen penetration. If the carbon layer is dense and continuous, the flame retardant performance is excellent.
Finally, the evaluation must take into account the environment and safety. Halogen-free flame retardants should not release harmful gases, and their decomposition products are non-toxic and pollution-free, in line with the purpose of green materials. To sum up, the advantages and disadvantages of flame retardant effect must be combined with physical, chemical and environmental data to make a fair conclusion. If only one-sided view of one end, it is difficult to make a thorough judgment.
Does Halogen Free Flame Retardant for Elastomers Affect the Physical Properties of Elastomers?
The effect of halogen-free flame retardants on the physical properties of elastomers
The use of halogen-free flame retardants in elastomer materials is an important part of modern materials science. Its purpose is to enhance the fire resistance of materials and reduce the hazard of fire, but its impact on the physical properties of elastomers must also be observed. Elastomers are characterized by high elasticity, plasticity and resilience, and are widely used in many fields of industry and civil use. If their physical properties are damaged, the application of materials is bound to be limited, so it needs to be carefully studied.
In the past, halogen-containing flame retardants were mostly used in man-made materials, but they produced toxic fumes during combustion, and the environmental harm was tremendous. Nowadays, environmental protection is the top priority, and halogen-free flame retardants are becoming increasingly popular, but their formulations involve a large number of inorganic, phosphorus-based and nitrogen-based components. The particle size, dispersion, and compatibility with the matrix of these additives are all closely related to the material properties. Halogen-free flame retardants are often prone to internal aggregation due to their complex molecular structure, high dosage, or large particle size, so the physical properties of elastomers are often damaged.
First, in terms of strength, because flame retardants are mostly rigid inorganic fine particles, when mixed into elastomers, if they are unevenly dispersed, the overall tensile properties of the material will be weakened, and cracks will easily occur. Second, in terms of flexibility, if the amount of flame retardant is too much, it will block the slippage of the molecular chain segment, slow down the rebound, and lose its original excellent elasticity. Third, wear resistance and folding resistance, high addition or insufficient uniformity may cause the surface of the material to be rough and the fatigue resistance to be reduced, which is not enough for high-frequency deformation.
However, if the fine particles with high dispersion are used, or the surface modification technology is used to improve their compatibility with the substrate, and an appropriate amount of flame retardant is applied, the physical properties of the elastomer can be controlled, and even the heat resistance or structural stability can be improved. There are also new flame retardants such as organophosphorus and nitrogen series, which are well designed and can give elastomers good flame retardancy with little physical property loss.
Overall, halogen-free flame retardants can improve the fire resistance of elastomers, but their impact on physical properties depends on the formula, dosage and dispersion. Proper process optimization is a good policy to balance safety and performance.
The use of halogen-free flame retardants in elastomer materials is an important part of modern materials science. Its purpose is to enhance the fire resistance of materials and reduce the hazard of fire, but its impact on the physical properties of elastomers must also be observed. Elastomers are characterized by high elasticity, plasticity and resilience, and are widely used in many fields of industry and civil use. If their physical properties are damaged, the application of materials is bound to be limited, so it needs to be carefully studied.
In the past, halogen-containing flame retardants were mostly used in man-made materials, but they produced toxic fumes during combustion, and the environmental harm was tremendous. Nowadays, environmental protection is the top priority, and halogen-free flame retardants are becoming increasingly popular, but their formulations involve a large number of inorganic, phosphorus-based and nitrogen-based components. The particle size, dispersion, and compatibility with the matrix of these additives are all closely related to the material properties. Halogen-free flame retardants are often prone to internal aggregation due to their complex molecular structure, high dosage, or large particle size, so the physical properties of elastomers are often damaged.
First, in terms of strength, because flame retardants are mostly rigid inorganic fine particles, when mixed into elastomers, if they are unevenly dispersed, the overall tensile properties of the material will be weakened, and cracks will easily occur. Second, in terms of flexibility, if the amount of flame retardant is too much, it will block the slippage of the molecular chain segment, slow down the rebound, and lose its original excellent elasticity. Third, wear resistance and folding resistance, high addition or insufficient uniformity may cause the surface of the material to be rough and the fatigue resistance to be reduced, which is not enough for high-frequency deformation.
However, if the fine particles with high dispersion are used, or the surface modification technology is used to improve their compatibility with the substrate, and an appropriate amount of flame retardant is applied, the physical properties of the elastomer can be controlled, and even the heat resistance or structural stability can be improved. There are also new flame retardants such as organophosphorus and nitrogen series, which are well designed and can give elastomers good flame retardancy with little physical property loss.
Overall, halogen-free flame retardants can improve the fire resistance of elastomers, but their impact on physical properties depends on the formula, dosage and dispersion. Proper process optimization is a good policy to balance safety and performance.
How is Halogen Free Flame Retardant for Elastomers added during processing?
Halogen Free Flame Retardant (halogen-free flame retardant) is used in the processing of elastomers. At first, the flame retardant with pure texture and uniform particle size must be selected to ensure compatibility with the elastomer matrix. Second, it is necessary to carefully check the proportion of each component in the formula to adapt to the requirements of the flame retardant grade and physical properties of the product. Common halogen-free flame retardants include phosphorus, nitrogen, inorganic hydroxides, etc., which can be used according to actual requirements.
At the beginning of processing, it is advisable to blend the flame retardant with other additives and fillers by dry mixing or wet mixing. If dry mixing is the main method, the elastomer masterbatch and flame retardant need to be put into a high-efficiency mixer and mixed evenly with each other. The wet mixing method can first modify the surface of the flame retardant with part of the surfactant, and then introduce the elastomer system to strengthen the dispersion effect. If the flame retardant is agglomerated, appropriate pretreatment should be carried out first, such as sieving, grinding, etc., to refine the particle size and disperse evenly to prevent agglomeration during processing.
In the mixing process, the flame retardant can be placed with the main material, and the feeding time and sequence can be adjusted with the compounding agent. If the feeding sequence is reasonable and orderly, it is easy to obtain a uniform distribution and the finished product performance is better. When the mixing is started, the mixture obtained by the mixing is rolled, folded and cut multiple times on the open mixer, so that the flame retardant is further dispersed in the matrix to enhance the flame retardant effect and maintain the original properties of the elastomer.
If extrusion or injection molding is used, attention should also be paid to the thermal stability of the flame retardant to avoid decomposition failure due to excessive processing temperature. If the flame retardant evaporates or precipitates due to inappropriate processing conditions, it is necessary to adjust the temperature and pressure appropriately, or add cooling and exhaust facilities. In order to prevent the migration of flame retardants from affecting the appearance of the product, an appropriate amount of anti-migration aids can be added to make it closely integrated with the matrix structure.
As for the amount of flame retardant added, it is advisable to take the test data and refer to the standard, and adjust the dosage to not only maintain the flame retardant performance, but also maintain the physical and mechanical properties of the elastomer. Finally, if the product needs secondary vulcanization and other post-treatment, the temperature stability of the flame retardant must also be considered to avoid
In summary, the processing and addition of elastomer halogen-free flame retardants requires careful consideration in terms of proportions, dispersion, process parameters and synergy of additives to achieve high-quality products.
At the beginning of processing, it is advisable to blend the flame retardant with other additives and fillers by dry mixing or wet mixing. If dry mixing is the main method, the elastomer masterbatch and flame retardant need to be put into a high-efficiency mixer and mixed evenly with each other. The wet mixing method can first modify the surface of the flame retardant with part of the surfactant, and then introduce the elastomer system to strengthen the dispersion effect. If the flame retardant is agglomerated, appropriate pretreatment should be carried out first, such as sieving, grinding, etc., to refine the particle size and disperse evenly to prevent agglomeration during processing.
In the mixing process, the flame retardant can be placed with the main material, and the feeding time and sequence can be adjusted with the compounding agent. If the feeding sequence is reasonable and orderly, it is easy to obtain a uniform distribution and the finished product performance is better. When the mixing is started, the mixture obtained by the mixing is rolled, folded and cut multiple times on the open mixer, so that the flame retardant is further dispersed in the matrix to enhance the flame retardant effect and maintain the original properties of the elastomer.
If extrusion or injection molding is used, attention should also be paid to the thermal stability of the flame retardant to avoid decomposition failure due to excessive processing temperature. If the flame retardant evaporates or precipitates due to inappropriate processing conditions, it is necessary to adjust the temperature and pressure appropriately, or add cooling and exhaust facilities. In order to prevent the migration of flame retardants from affecting the appearance of the product, an appropriate amount of anti-migration aids can be added to make it closely integrated with the matrix structure.
As for the amount of flame retardant added, it is advisable to take the test data and refer to the standard, and adjust the dosage to not only maintain the flame retardant performance, but also maintain the physical and mechanical properties of the elastomer. Finally, if the product needs secondary vulcanization and other post-treatment, the temperature stability of the flame retardant must also be considered to avoid
In summary, the processing and addition of elastomer halogen-free flame retardants requires careful consideration in terms of proportions, dispersion, process parameters and synergy of additives to achieve high-quality products.
Does Halogen Free Flame Retardant for Elastomer comply with environmental and safety regulations?
Halogen Free Flame Retardant for Elastomer, which is designed to replace traditional halogen-based flame retardants to ensure that products delay combustion in the event of fire and reduce the escape of harmful gases. Modern environmental regulations and safety standards are becoming increasingly stringent, such as European Union REACH, RoHS, etc., all specify that halogen-based flame retardants are prohibited or restricted, because halogen materials are prone to highly toxic and harmful gases when burned, endangering human and environmental safety. Halogen free flame retardants came into being. Their raw materials are mostly inorganic fillers, organic phosphorus, nitrogen-based compounds, etc. These ingredients do not generate halogen acid gas when burned, and have little impact on the human respiratory system. Reduce the harm to the ecology and conform to the concept of environmental protection.
Today's Halogen Free Flame Retardant is based on aluminum hydroxide, phosphate ester, melamine derivatives, etc. It generates water vapor or inert gas when burned, which can effectively isolate the air and block the spread of fire, and the by-products are not seriously toxic. Related products are widely used in wire and cable, automotive seals, building materials and other fields. Its manufacturing, use and waste process has a lower ecological burden than halogen flame retardants. Not only meets the European Union directive, but also complies with the US TSCA, Japan Chemical Pipe Law and China's environmental protection standards. It has a high environmental protection review pass rate and often obtains green product certification.
In addition, new halogen-free flame retardants are increasingly well-designed in terms of toxicology, migration, and durability, reducing the risk of bioaccumulation and accumulation. A number of standardized and industry certification systems have systematically tested and evaluated their chemical composition, decomposition products, and release behavior, showing their environmental protection and safety characteristics, and protecting the health of operators and end users. Due to the high decomposition temperature of halogen-free flame retardants, they generally have little impact on the properties of elastomers, and can also maintain the flexibility and physical and mechanical properties of products, taking into account safety. Many countries and regions promote their application and adopt relevant policies to encourage substitution.
In summary, Halogen Free Flame Retardant for Elastomer can meet the requirements of current environmental protection and safety regulations. Its promotion and application is conducive to the harmonious coexistence of humans and nature, and promotes industrial green upgrading. Only need to pay attention to the different performance of different types of products. When using specific elastomers, compatibility and performance should be considered one by one to achieve the best results.
Today's Halogen Free Flame Retardant is based on aluminum hydroxide, phosphate ester, melamine derivatives, etc. It generates water vapor or inert gas when burned, which can effectively isolate the air and block the spread of fire, and the by-products are not seriously toxic. Related products are widely used in wire and cable, automotive seals, building materials and other fields. Its manufacturing, use and waste process has a lower ecological burden than halogen flame retardants. Not only meets the European Union directive, but also complies with the US TSCA, Japan Chemical Pipe Law and China's environmental protection standards. It has a high environmental protection review pass rate and often obtains green product certification.
In addition, new halogen-free flame retardants are increasingly well-designed in terms of toxicology, migration, and durability, reducing the risk of bioaccumulation and accumulation. A number of standardized and industry certification systems have systematically tested and evaluated their chemical composition, decomposition products, and release behavior, showing their environmental protection and safety characteristics, and protecting the health of operators and end users. Due to the high decomposition temperature of halogen-free flame retardants, they generally have little impact on the properties of elastomers, and can also maintain the flexibility and physical and mechanical properties of products, taking into account safety. Many countries and regions promote their application and adopt relevant policies to encourage substitution.
In summary, Halogen Free Flame Retardant for Elastomer can meet the requirements of current environmental protection and safety regulations. Its promotion and application is conducive to the harmonious coexistence of humans and nature, and promotes industrial green upgrading. Only need to pay attention to the different performance of different types of products. When using specific elastomers, compatibility and performance should be considered one by one to achieve the best results.
