Flame Retardant for TPE Compounds
| HS Code | 578723 |
As an accredited Flame Retardant for TPE Compounds factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 25 - kg bags of "Flame Retardant for TPE Compounds" with secure chemical - resistant packaging. |
| Storage | **Storage of Flame Retardant for TPE Compounds** Store the flame retardant for TPE compounds in a cool, dry place away from direct sunlight and heat sources. Keep it in a well - ventilated area to prevent the buildup of potentially harmful fumes. Ensure containers are tightly sealed to avoid moisture absorption, which could affect its performance. Avoid storing near reactive chemicals to prevent unwanted reactions. |
| Shipping | Flame Retardant for TPE Compounds is shipped in well - sealed, sturdy containers to prevent spills. Shipment follows strict chemical transport regulations, ensuring safe delivery from origin to destination. |
Competitive Flame Retardant for TPE Compounds prices that fit your budget—flexible terms and customized quotes for every order.
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Historical Development
It can be traced back to the initial rise of materials used in the combination of rubber and plastic. The properties of various materials are different, and it is difficult to adapt to changing needs. There are times when TPE (thermoplastic elastomer) should be used. However, its nature is flammable, and there are hidden worries. It is a skilled craftsman with four craftsmanship, painstakingly thinking, hoping to eliminate hidden dangers by flame retardant methods. At the beginning, halogen flame retardant was used. Although it was efficient and convenient, it was co-produced with smoke and poison, and the environment was damaged. Then environmentally friendly flame retardants such as phosphorus and nitrogen series were gradually promoted, taking into account efficiency and environmental protection. Technology has become increasingly sophisticated, and nano-flame retardant and synergistic effects have also come into being. After decades of precipitation, flame retardant TPE has both regained performance and safety, and Today's flame retardant TPE, the process is changing with each passing day, and both environmental protection and flame retardancy are considered, which is a new chapter in the development of materials.
Product Overview
This product is a special flame retardant for thermoplastic elastomer (TPE). It selects high-quality raw materials, and the compatibility is subtle. It is melted into the TPE matrix, which can effectively improve its flame retardant properties. Its properties are stable, its color is plain, and it is not easy to precipitate. It has many advantages such as environmental protection, low halogen, low smoke and non-toxicity. During processing, it has good dispersion, excellent fluidity, and is compatible with many types of TPE, which can ensure that the physical properties and flame retardant effects of the products are excellent. It is suitable for wire and cable, auto parts, consumer electronics and other fields. It can not only meet the requirements of product flame retardant regulations, but also prolong the service life. Popularizing the use helps to improve the safety level of products and benefit social well-being.
Physical & Chemical Properties
This flame retardant is used in thermoplastic elastomers and has excellent physical and chemical properties. Its state is mostly fine powder, with white color and moderate density, which is easy to mix evenly with the substrate. High melting point and low volatility, stable at room temperature, no smell, not easy to absorb moisture. In case of fire, it can quickly release smoke suppression and cooling components, break off flame and inhibit thermal degradation and combustible gas generation. Chemical properties are mild, non-corrosive, and there is no obvious reaction in case of common acids and bases. Good dispersion in polymer matrix, avoid migration and precipitation, and maintain stable performance for long-term storage. Weak solubility, insoluble in water and various organic solvents. With excellent thermal stability and environmental friendliness, it can ensure efficient flame retardancy in processing and product applications without compromising the original mechanical properties and flexibility of the material.
Technical Specifications & Labeling
This product is called flame retardant for TPE composites. It has fine and fine powder properties, milky white or gray color, and weak smell. It has stable chemical properties, high temperature resistance and is not easy to decompose. It can be widely used in the preparation of styrene and olefin thermoplastic elastomers (such as TPE, TPV, TPR, SBC, SEBS). The flame retardant grade reaches UL94 V-0, the addition amount is 5-15%, the dispersion is good, and the compatibility with polymers is good. The melting point is about 200 degrees Celsius, the particle size is uniform, and the average D50 is about 12 microns. The moisture content is less than or equal to 0.3%. It is halogen-free and low toxic. It can meet the environmental protection ROHS and REACH standards. The packaging is mostly 25 kg composite cowhide bags or customized, which is convenient for storage and transportation. Suitable for wire and cable, sealing strip, home appliance shell and other products. Exceptional quality, stable performance, customers can choose according to their needs.
Preparation Method
Phosphorus-based flame retardants, nitrogen-based additives and montmorillonite were selected as raw materials, mixed according to their proportions, and stirred at high speed to make them uniform. The mixture was placed in an extruder and heated between 150 and 200 degrees Celsius to extrude, so that the components gradually fused. During the reaction, the phosphorus-based flame retardants decomposed when heated, releasing phosphoric acid derivatives, which promoted the formation of a carbon layer on the surface of the TPE system to isolate the heat source; the nitrogen-based additives worked synergistically to release inert gases and suppress the spread of the flame. The layered structure of montmorillonite dispersed under heat, enhancing the effect of heat insulation and oxygen resistance. The whole process of temperature control and rate regulation can give full play to the catalytic mechanism, promote the microscopic uniform distribution of flame retardants, and finally obtain the flame retardant masterbatch of TPE with dense appearance and stable performance.
Chemical Reactions & Modifications
The flame retardant modification of thermoplastic elastomers (TPE) depends on the delicacy of chemical reactions. Or a halogen flame retardant is mixed with the main body, which decomposes and releases hydrogen halides in case of fire, cuts off the combustion chain, and finally suppresses the flame potential; or phosphorus and nitrogen flame retardants are added, relying on their gaseous reaction to generate smoke suppression and flame retardant films. In case of high temperature, a carbon layer is formed to isolate the heat source. There are also inorganic fillings, such as aluminum hydroxide and magnesium hydroxide, which decompose by heat absorption, release a lot of water vapor, and cool down and isolate oxygen. In order to improve compatibility and dispersion, scientists may modify the surface with coupling agents to make the flame retardant particles and the TPE matrix mutually soluble and complementary, and the flame resistance benefits are obvious. Modification requires considering both mechanics and flame retardancy, or using multiple compounding or microencapsulation to prevent precipitation and ductility, so that TPE composites can not only protect against fire, but also maintain the toughness of materials. They are widely used in the fields of wires, automobiles, and consumer electronics.
Synonyms & Product Names
Flame retardants are used to add to thermoplastic elastomers to make them self-extinguishing and safe for the world. There are many names, or flame retardants, also known as fire retardants, flame suppressors, and some merchants are made according to Germany, France and Britain, and they are named Flame Retardant, Fire Retardant, Brandschutzmittel, etc., and they all go the same way. There are many products on the market, such as Clariant's Exolit, Adeka's ADEKA FP, Israeli ICL's FR series, and Japan's Mitsui's NOVFLAME, all of which are good agents, each of which is good at winning the field. There are also domestic companies who use the reputation of "flame" and "guarding fire" as products, which are dazzling and difficult to choose. However, although their quality is different, their purpose is the same, and they all want to give TPE the ability to resist fire. When purchasing, users need to identify their names. No matter the synonym is changed, it is actually one thing used for fire protection, and it must not be confused with other additions. In this way, the material is selected and used for protection.
Safety & Operational Standards
Flame retardant used in thermoplastic elastomer (TPE), its rigidity and softness, effective, however, the operation must be careful, safety is at stake. When starting the package, the place must be ventilated to prevent particles flying or odor dispersing in the room, causing people to have difficulty breathing. Operators should wear gloves, goggles and masks, do not let the drug touch the skin, eyes, if or inadvertently, rinse with water or seek immediate medical attention. Store place, should be dry and cool, away from fire and high temperature, and strictly prohibited with acid, alkali or flammable and explosive substances co-location. With storage and transportation, must be clearly marked, not to be confused. When weighing and mixing, observe the way of precision and lightness. If the weight is too biased, it will be lost, and if it is vigorously stirred, it will be scattered in the air. It is not advisable. Containers should be prepared exclusively, and precursors should not be mixed to prevent unexpected reactions. Residual materials and waste should be properly disposed of in accordance with environmental laws and regulations, and should not be discarded in river soil to prevent disasters and harm to the environment. Daily maintenance of equipment, if any leakage wear is detected, it will be repaired immediately to prevent it from happening. In case of fire, dry powder and carbon dioxide fire extinguishers should be used, and water should not be poured to avoid the spread of fire. During the operation period, do not eat and laugh, and be sure to focus on things and be prepared for danger in times of peace. If you find any abnormal symptoms, such as dizziness, cough, etc., you must immediately evacuate to a place with fresh air and seek medical attention without slack. Supervisors should regularly train practitioners to make sure that they are well-versed and abide by norms and laws, which can ensure safety and safety, and make the best use of flame inhibitors and avoid disasters.
Application Area
Flame retardants are used in thermoplastic elastomers and are widely used in many fields. They are in demand in cable sheathing, electronic components, automotive parts, consumer electronics shells and building decoration. Insulation and sheathing of wires and cables are used to increase flame retardancy and safety for those who are worried about fire. In the automotive industry, they are used in interiors, dashboards, and wiring harness sheathing to ensure safe riding. Electronic product shells and parts, such as mobile phones, TVs, etc., are urgently needed to be flame retardant to avoid short-circuit fires. And in the construction sector, door and window sealing, floor laying, are all made of elastomer composites to be both flame retardant and flexible. Because of its ease of processing, environmental protection and performance, it is favored by many manufacturers. Nowadays, the application of flame retardants is increasingly popular in the needs of the national economy and people's livelihood, which is an essential factor for ensuring safety.
Research & Development
Modern science and technology are new, and the use of synthetic materials is becoming more and more extensive. Thermoplastic elastomers (TPE) are both rubber and plastic, but they have high flammability and are difficult to meet the needs of many fields. Therefore, scholars searched for ways of flame retardancy, looking for new agents, or adding phosphorus, nitrogen, halogen-free substances, or setting proportions to modify the structure. Try on microscopic molecules, investigate their compatibility, and use the force between polymer chains to help them distribute. After years of intensive research, the benefits of flame retardant and TPE compounding have been demonstrated, with less smoke and low toxicity, and mechanical properties have also been guaranteed. The process is gradually mature, and it can be mass-produced to meet the needs of electronics, automobiles, and construction. However, there are still unknowns, such as environmental friendliness and recycling, all of which need to be carefully studied and applied in the future, so that TPE flame retardant composites can be improved to the best, and can be guaranteed for a long time.
Toxicity Research
Flame retardants applied to thermoplastic elastomers can slow down combustion, but their toxicity cannot be ignored. In the past, chemists used bromine-based, phosphorus-based and nitrogen-based substances as additives, causing volatile and exudative harmful particles to escape at high temperatures or during combustion. These particles and degradation products may be carcinogenic, mutagenic, endocrine disrupting and other harm. Experiments show that rodents are exposed for a long time, liver and kidney damage, abnormal neurobehavior gradually appear, and blood biochemistry is also abnormal. If the human body is in this environment, it is difficult to be safe. Although new environmentally friendly flame retardants are trying to reduce toxicity, their source substances and side reaction products still need to be investigated in detail. Rigorous tests should be conducted to detect the effects of bioaccumulation, environmental degradation and chronic exposure to ensure safe development and application.
Future Prospects
Flame retardant technology, after evolution, has now been widely used in thermoplastic elastomer (TPE) composites. Looking at its future, the demand is increasing day by day, and the method of safety and environmental protection is more and more important. New flame retardants have emerged as the times require, taking into account both high-efficiency flame retardant and low toxicity and harmless, in line with the trend of green development. Composite modification, micro-nano technology, and synergy effect are carried out in order to improve material performance and adapt to intelligent manufacturing and high-end equipment. The industry collaborates to innovate and develop self-extinguishing, durable and easy-to-process flame retardant materials, which will be widely used in various fields of automotive, electronics, and medical care. Stricter overseas regulations will promote the self-improvement of local technologies. Integrate renewable resources, promote circular economy, and promote sustainable development. Looking ahead, flame retardant materials will surely take science and technology as their wings, opening up a new realm of green and high efficiency, benefiting society and protecting health.
Where to Buy Flame Retardant for TPE Compounds in China?
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As a leading Flame Retardant for TPE Compounds 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 Common Types of Flame Retardants for TPE Compounds?
Thermoplastic elastomer (TPE) products are widely used, but their flammability is particularly worrying. In order to ensure safety, adding flame retardants to curb the spread of fire and resist burning for a long time has become the general trend today. There are many types of flame retardants, each with its own functions. In TPE materials, the common ones can be listed in the number of ends:
One is halogens, mostly bromine and chlorine compounds. The key is that when heated and decomposed, free halogens can prevent chain reactions, cut off free radicals, and extinguish flames. They are often used with antimony trioxide to increase efficiency. However, due to the prevalence of environmental protection, the dosage has gradually decreased.
The second is halogen-free flame retardant, which refers to organic phosphorus and nitrogen series. Its mechanism is either carbon formation, or expansion, and residual carbon isolates the air, and does not welcome external inflammation. Common such as red phosphorus, intumescent flame retardants, aluminum hydroxide and magnesium hydroxide. The latter two release water when heated, absorb heat, reduce the temperature of the system, and have a dilution effect, making combustion unsustainable.
Third, coated flame retardants are mainly composed of particles and wrapped with polymer materials to improve compatibility with TPE, effectively maintain the physical properties of the material, and reduce the migration and precipitation of flame retardants. This method is especially suitable for high-demand products.
The fourth is synergistic flame retardant, which is not a single agent, but a combination of multiple agents, each developing its own strengths, or synergy, or complementarity. For example, the combination of phosphorus and nitrogen has the effect of both carbon formation isolation and gas release flame retardant, making the flame retardant performance more significant.
In general, the choice of flame retardants must be weighed against its environmental performance, cost, processing characteristics and performance. In today's world, environmental protection regulations are being emphasized, and halogen-free flame retardant is gradually becoming the mainstream, and the trade-off of its addition method and dosage is also the key to technology. Therefore, those who make TPE composites should be familiar with its principles and understand its changes, so as to meet the complex practical needs.
One is halogens, mostly bromine and chlorine compounds. The key is that when heated and decomposed, free halogens can prevent chain reactions, cut off free radicals, and extinguish flames. They are often used with antimony trioxide to increase efficiency. However, due to the prevalence of environmental protection, the dosage has gradually decreased.
The second is halogen-free flame retardant, which refers to organic phosphorus and nitrogen series. Its mechanism is either carbon formation, or expansion, and residual carbon isolates the air, and does not welcome external inflammation. Common such as red phosphorus, intumescent flame retardants, aluminum hydroxide and magnesium hydroxide. The latter two release water when heated, absorb heat, reduce the temperature of the system, and have a dilution effect, making combustion unsustainable.
Third, coated flame retardants are mainly composed of particles and wrapped with polymer materials to improve compatibility with TPE, effectively maintain the physical properties of the material, and reduce the migration and precipitation of flame retardants. This method is especially suitable for high-demand products.
The fourth is synergistic flame retardant, which is not a single agent, but a combination of multiple agents, each developing its own strengths, or synergy, or complementarity. For example, the combination of phosphorus and nitrogen has the effect of both carbon formation isolation and gas release flame retardant, making the flame retardant performance more significant.
In general, the choice of flame retardants must be weighed against its environmental performance, cost, processing characteristics and performance. In today's world, environmental protection regulations are being emphasized, and halogen-free flame retardant is gradually becoming the mainstream, and the trade-off of its addition method and dosage is also the key to technology. Therefore, those who make TPE composites should be familiar with its principles and understand its changes, so as to meet the complex practical needs.
What is the general addition ratio of Flame Retardant for TPE Compounds?
The compatibility of thermoplastic elastomers (TPE), fire performance is particularly critical. In the commercial process, taking flame retardants to add to TPE, it is necessary to test not only its dosage, but also its composition, so as to get the best of both worlds. Today's commonly used flame retardants such as organophosphorus, aluminum salts, magnesium hydroxide, bromine compounds and intumescent materials show their effectiveness. However, the addition ratio of each type cannot be generalized.
The use of flame retardants is intended to improve the self-extinguishing properties of TPE materials and reduce the precipitation of combustion fumes and toxic gases. To achieve a flame retardant grade such as UL94-V0, the content of flame retardants must be moderate. However, if the proportion is too small, the effect will not be obvious; if the proportion is too large, the mechanical properties will be damaged, and the material body will become brittle, which is not suitable. Therefore, the flame retardant is usually measured in percentage in the process. For those who use magnesium hydroxide, aluminum hydroxide and other inorganic fillers as flame retardants, 25% to 60% are often applied, depending on the TPE base material and performance requirements. Phosphorus-based and brominated organic flame retardants, 10% to 25% are used more. If the high-efficiency synergistic system and nano-composite flame retardant formula are used, there are also those with less than a few centimeters, and the effect is more unusual. The dosage of intumescent flame retardants is about 15% to 30%, taking into account the effects of smoke suppression and charcoal formation and fire resistance.
The specific gravity of flame retard The initial formula should be tested in medium and equal proportions, preferably 20% to 30%. The performance can only be lifted or lowered if the performance meets the standard. If the product needs to be flexible and has good flame retardant, it should be selected as a high-efficiency flame retardant, or added in combination. Do not make one thing unique, in order to prevent the loss of mechanical properties too much.
In addition, the original flame retardant data must refer to ISO, UL and other relevant standards. Different uses of TPE, such as cables, auto parts, and daily products, have different flame retardant requirements, and the amount may be increased or decreased. It is advisable to observe the needs in detail, make small samples, and gradually increase them. Observe the flame retardant grade and mechanical strength changes before making a decision.
It is important to keep in mind that as the proportion of flame retardants increases, it is necessary to pay attention to its impact on processing fluidity, color stability and environmental safety. If you want to take into account high flame retardancy and superior performance, it is advisable to weigh the formula in multiple ways, and do not pursue one end and lose its essence. In this way, TPE flame retardant can be optimized.
The use of flame retardants is intended to improve the self-extinguishing properties of TPE materials and reduce the precipitation of combustion fumes and toxic gases. To achieve a flame retardant grade such as UL94-V0, the content of flame retardants must be moderate. However, if the proportion is too small, the effect will not be obvious; if the proportion is too large, the mechanical properties will be damaged, and the material body will become brittle, which is not suitable. Therefore, the flame retardant is usually measured in percentage in the process. For those who use magnesium hydroxide, aluminum hydroxide and other inorganic fillers as flame retardants, 25% to 60% are often applied, depending on the TPE base material and performance requirements. Phosphorus-based and brominated organic flame retardants, 10% to 25% are used more. If the high-efficiency synergistic system and nano-composite flame retardant formula are used, there are also those with less than a few centimeters, and the effect is more unusual. The dosage of intumescent flame retardants is about 15% to 30%, taking into account the effects of smoke suppression and charcoal formation and fire resistance.
The specific gravity of flame retard The initial formula should be tested in medium and equal proportions, preferably 20% to 30%. The performance can only be lifted or lowered if the performance meets the standard. If the product needs to be flexible and has good flame retardant, it should be selected as a high-efficiency flame retardant, or added in combination. Do not make one thing unique, in order to prevent the loss of mechanical properties too much.
In addition, the original flame retardant data must refer to ISO, UL and other relevant standards. Different uses of TPE, such as cables, auto parts, and daily products, have different flame retardant requirements, and the amount may be increased or decreased. It is advisable to observe the needs in detail, make small samples, and gradually increase them. Observe the flame retardant grade and mechanical strength changes before making a decision.
It is important to keep in mind that as the proportion of flame retardants increases, it is necessary to pay attention to its impact on processing fluidity, color stability and environmental safety. If you want to take into account high flame retardancy and superior performance, it is advisable to weigh the formula in multiple ways, and do not pursue one end and lose its essence. In this way, TPE flame retardant can be optimized.
Does Flame Retardant for TPE Compounds Affect the Physical Properties of TPE?
Plasticity, it is a good material for OEM, and it is widely used in many fields such as daily necessities, plastics, and steam. However, safety is involved, and it is necessary to take care of flame retardancy. Therefore, the use of flame retardancy is prosperous. However, the benefits of flame retardancy may also be due to its nature. The reason lies in the compatibility, addition amount and shape of the flame retardant TPE base.
The ancients said: "The device is still used for profit, and the product is used for this purpose." TPE, the nature of the product is in the flexibility, durability and ease of forming. Where flame retardant is used, it is mostly not effective. Such as oxidation and oxidation, the properties are not fixed, but the particles are large, uneven dispersion, and easy to increase the strength of the material, so that the tensile strength, elongation or flexural resistance are at risk of weakening. In addition, the processing flow also has an impact, and it is easy to produce poor processing.
Even if there are flame retardants, such as bromine, phosphorus or nitrogen, it is often necessary to be compatible with the effect, or the viscous group. If the compatibility is appropriate, the consumption is minimal. However, if the compatibility is not good, it is easy to accumulate and precipitate, and the mechanical resistance will decrease over time, or the surface will frost. And some of the flame retardants are high and the lower the temperature, and the performance of this product is low.
There is a long-term guarantee, and the bio-based flame retardant is not good, and the physical impact of TPE is unknown, so it needs to be carefully estimated. Therefore, the flame retardant can improve the flame retardant performance, but the physical performance is still completely free. To improve the flame retardant efficiency and physical performance, it is necessary to take care of the same aspects of flame retardant, flame retardant, assembly, and assistance.
Due to the use of flame retardant, the impact of TPE physical properties is a multi-faceted consideration, which is not good. Those who adhere to the way of material use, technology and safety performance can meet the needs of the workers.
The ancients said: "The device is still used for profit, and the product is used for this purpose." TPE, the nature of the product is in the flexibility, durability and ease of forming. Where flame retardant is used, it is mostly not effective. Such as oxidation and oxidation, the properties are not fixed, but the particles are large, uneven dispersion, and easy to increase the strength of the material, so that the tensile strength, elongation or flexural resistance are at risk of weakening. In addition, the processing flow also has an impact, and it is easy to produce poor processing.
Even if there are flame retardants, such as bromine, phosphorus or nitrogen, it is often necessary to be compatible with the effect, or the viscous group. If the compatibility is appropriate, the consumption is minimal. However, if the compatibility is not good, it is easy to accumulate and precipitate, and the mechanical resistance will decrease over time, or the surface will frost. And some of the flame retardants are high and the lower the temperature, and the performance of this product is low.
There is a long-term guarantee, and the bio-based flame retardant is not good, and the physical impact of TPE is unknown, so it needs to be carefully estimated. Therefore, the flame retardant can improve the flame retardant performance, but the physical performance is still completely free. To improve the flame retardant efficiency and physical performance, it is necessary to take care of the same aspects of flame retardant, flame retardant, assembly, and assistance.
Due to the use of flame retardant, the impact of TPE physical properties is a multi-faceted consideration, which is not good. Those who adhere to the way of material use, technology and safety performance can meet the needs of the workers.
Does Flame Retardant for TPE Compounds comply with environmental regulations?
Thermoplastic elastomers (TPE) have excellent performance and are widely used in products. However, the production of products, fire retardant and flame retardant, is a real priority. In today's technology, the application of flame retardants to TPE is more and more important. However, as we all know, flame retardants have been used since ancient times, and the relevant environmental regulations have become more and more stringent. Internationally, there are European Union REACH regulations, RoHS directives, California Proposition 65, etc., all aimed at protecting human health and environmental cleanliness. Our country also has regulations such as the "Hazardous Chemicals Safety Management Regulations" and the "Restricted Chemicals Use Catalogue" to coordinate the application of various hazardous substances. Therefore, today's flame retardants must be clear whether they comply with such regulations.
Common flame retardants include halogen compounds, phosphorus series, nitrogen series, inorganic substances, etc. Halogen flame retardants, although they are efficient and cheap, are prone to produce carcinogenic organic halogens when burned, polluting the environment. The European Union has long restricted their use by decree; our country has also gradually restricted their scope. Phosphorus series, nitrogen series and inorganic flame retardants, such as antimony trioxide, hydrotalcite, aluminum hydroxide, etc., are less toxic and have better environmental compatibility, making them the mainstream today. However, impurities or associated organisms, such as heavy metal impurities and synergists, also need to strictly control the content, otherwise it is difficult to meet environmental protection requirements.
Today, qualified flame retardant TPE formulations use halogen-free flame retardant technology and carefully select raw materials to ensure compliance with European Union RoHS limits, harmful metals and PAHs (polycyclic aromatic hydrocarbons) testing. Manufacturers need to obtain authoritative test reports such as SGS and CTI for quality assurance. And they need to constantly pay attention to regulatory changes and adjust formulations in a timely manner. Only by carefully examining its production process and raw material safety data can they assert its environmental compliance.
In summary, whether TPE flame retardants comply with regulations requires detailed investigation of their composition structure, sources and management of pollution emissions. If the halogen-free environmental protection scheme is adopted, the limit detection of harmful substances is strictly adhered to, and the authoritative third-party report is obtained, the environmental protection standards at home and abroad can be met. However, environmental health cannot be ignored because of the flame retardant power. When each product comes out, compliance is the first.
Common flame retardants include halogen compounds, phosphorus series, nitrogen series, inorganic substances, etc. Halogen flame retardants, although they are efficient and cheap, are prone to produce carcinogenic organic halogens when burned, polluting the environment. The European Union has long restricted their use by decree; our country has also gradually restricted their scope. Phosphorus series, nitrogen series and inorganic flame retardants, such as antimony trioxide, hydrotalcite, aluminum hydroxide, etc., are less toxic and have better environmental compatibility, making them the mainstream today. However, impurities or associated organisms, such as heavy metal impurities and synergists, also need to strictly control the content, otherwise it is difficult to meet environmental protection requirements.
Today, qualified flame retardant TPE formulations use halogen-free flame retardant technology and carefully select raw materials to ensure compliance with European Union RoHS limits, harmful metals and PAHs (polycyclic aromatic hydrocarbons) testing. Manufacturers need to obtain authoritative test reports such as SGS and CTI for quality assurance. And they need to constantly pay attention to regulatory changes and adjust formulations in a timely manner. Only by carefully examining its production process and raw material safety data can they assert its environmental compliance.
In summary, whether TPE flame retardants comply with regulations requires detailed investigation of their composition structure, sources and management of pollution emissions. If the halogen-free environmental protection scheme is adopted, the limit detection of harmful substances is strictly adhered to, and the authoritative third-party report is obtained, the environmental protection standards at home and abroad can be met. However, environmental health cannot be ignored because of the flame retardant power. When each product comes out, compliance is the first.
How is Flame Retardant for TPE Compounds Evaluated?
To evaluate the flame retardant effect of thermoplastic elastomers (TPE), a series of rigorous methods are covered. The international standard, flame suppression, is mostly tested with UL-94. Its grade is high and low, and it is distinguished by the combustion rate, extinguishing time and dripping phenomenon. Secondly, the oxygen index test (LOI), which measures the mixture of different volumes of oxygen and nitrogen in atmospheric air to determine the oxygen concentration required for the material to maintain spontaneous combustion. The higher one indicates superior flame retardant performance. Then a cone calorimeter is used to measure its heat release rate, flue gas and gas emissions, etc., to study the actual performance in the fire.
At the beginning of the test, a standard sample of TPE composite material needs to be taken to make its size and shape meet the specifications. In experiments such as UL-94, the flame is ignited from under the sample to observe the continuation of the flame and whether the dripping ignites the cotton. With the LOI method, the proportion of oxygen is increased. If the flame self-extinguishes and does not continue, the oxygen concentration is taken as the material limit oxygen index. The cone calorimetry irradiates the sample with a certain heat flow, collects the heat release rate, total smoke and toxic gas generation during continuous combustion, and summarizes various data for comparison. Although the methods are different, they all aim to reveal the flame retardant nature and safety limit of the material in the ignition source.
Also need to consider the distribution and migration of flame retardants. If the distribution of flame retardants is uneven, although it appears to be in line with the standard, it is actually locally flammable. Under the fire, the protection is weak. Chemical analysis is also indispensable, such as infrared spectroscopy and elemental analysis, to verify that the flame retardant components are indeed embedded in the TPE matrix. Long-term aging can also affect the flame retardant performance, and environmental tests such as thermal aging and ultraviolet exposure should be used to test its durability. Therefore, if you want to evaluate the flame retardant performance of TPE, you must choose a variety of methods to confirm each other to ensure safety and reliability. To sum up, evaluating the flame retardant effect of TPE composites requires not only one method, but also a comprehensive combustion test, chemical test and durability test to determine its flame retardant method in detail.
At the beginning of the test, a standard sample of TPE composite material needs to be taken to make its size and shape meet the specifications. In experiments such as UL-94, the flame is ignited from under the sample to observe the continuation of the flame and whether the dripping ignites the cotton. With the LOI method, the proportion of oxygen is increased. If the flame self-extinguishes and does not continue, the oxygen concentration is taken as the material limit oxygen index. The cone calorimetry irradiates the sample with a certain heat flow, collects the heat release rate, total smoke and toxic gas generation during continuous combustion, and summarizes various data for comparison. Although the methods are different, they all aim to reveal the flame retardant nature and safety limit of the material in the ignition source.
Also need to consider the distribution and migration of flame retardants. If the distribution of flame retardants is uneven, although it appears to be in line with the standard, it is actually locally flammable. Under the fire, the protection is weak. Chemical analysis is also indispensable, such as infrared spectroscopy and elemental analysis, to verify that the flame retardant components are indeed embedded in the TPE matrix. Long-term aging can also affect the flame retardant performance, and environmental tests such as thermal aging and ultraviolet exposure should be used to test its durability. Therefore, if you want to evaluate the flame retardant performance of TPE, you must choose a variety of methods to confirm each other to ensure safety and reliability. To sum up, evaluating the flame retardant effect of TPE composites requires not only one method, but also a comprehensive combustion test, chemical test and durability test to determine its flame retardant method in detail.
