Flame Retardant Masterbatch for PP
| HS Code | 301211 |
| Flame Retardancy Level | UL 94 rating (e.g., V-0, V-1, V-2) |
| Melting Point | Specific melting temperature range |
| Density | Measured density value |
| Thermal Stability | Temperature limit for stable performance |
| Compatibility With Pp | High/Medium/Low |
| Mechanical Property Impact | Effect on tensile strength, etc. |
| Processing Temperature Range | Range suitable for processing with PP |
| Color | Typical color (e.g., white, transparent) |
| Odor | Degree of odor (none, slight, strong) |
| Storage Stability | Duration and conditions for stable storage |
As an accredited Flame Retardant Masterbatch for PP factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 25 - kg bags of PP Flame Retardant Masterbatch, securely packaged for safe handling. |
| Storage | **Storage Instructions for PP Flame Retardant Masterbatch** Store the PP flame retardant masterbatch in a cool, dry place away from direct sunlight and heat sources. Keep it in a well - ventilated area to prevent moisture absorption. Ensure the packaging remains sealed when not in use to maintain its quality and prevent contamination, safeguarding its flame - retardant properties. |
| Shipping | Flame Retardant Masterbatch for PP is shipped in well - sealed, moisture - proof containers. They are carefully packed to prevent damage during transit, ensuring safe delivery to customers. |
Competitive Flame Retardant Masterbatch for PP 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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Tel: +8615380400285
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Historical Development
It can be traced back to polypropylene as a material and is widely used in all industries. However, the risk of spontaneous combustion is a concern for technicians. At the beginning, flame retardants were mixed into materials. Although the effect was not yet obvious, the process was also complex. And with the improvement of science, chemical volunteers then created flame retardant masterbatches to meet the needs of polypropylene. Mixing is uniform and distributed uniformly, and the performance is significantly better than that of the ancient method. In the first phase, bromine is used as a agent, but it is harmful to the environment. In the later years, phosphorus and nitrogen are combined, and it should be environmentally friendly. The formula is gradually refined, flame retardant, mechanical and beautiful. Today's masterbatch is widely used, which not only keeps safety, but also benefits production. It has become a great help to the contemporary plastics industry and witnessed the road
Product Overview
This product is a flame retardant masterbatch specially made for polypropylene (PP). It selects high-quality flame retardants and carriers and is melted and granulated at high temperature. Its properties are stable, evenly dispersed, and added to the polypropylene substrate can significantly improve the flame retardant properties of the material, reaching the national standard V-0 level. It emits less smoke during combustion, is halogen-free and non-toxic, and does not affect the physical properties and molding process of the product. It is suitable for injection molding, extrusion, blow molding and other processing methods, and is widely used in electronic appliances, automotive parts, household goods and building materials. It has strong compatibility, good compatibility, and is easy to measure and mix during production, which can effectively reduce production costs. The product has uniform particle color, good fluidity, and does not agglomerate after long-term storage. It is the preferred material for many high-end flame retardant products.
Physical & Chemical Properties
This PP uses flame retardant masterbatch, the color is mostly light gray or milky white, the granular shape is uniform, and the surface is smooth. It is firm and brittle, the melting point is about 170 to 176 degrees Celsius, and the density is about 0.9 to 1.2 grams per cubic centimeter. Mixed evenly, well dispersed, can be melted with polypropylene resin, and is not easy to precipitate. Chemical properties are stable, resistant to a variety of acids and bases, insoluble in water, and slightly soluble in organic solvents. In case of fire, the flame retardant effect is significant, the ignition point is high, the flame propagation is slow, and the smoke and dust are scarce. It contains phosphorus, nitrogen or halogen elements, which can synergistically isolate oxygen, inhibit thermal decomposition, reduce the generation of harmful gases, and have strong compatibility with the matrix. It is not easy to affect the essential properties Storage should avoid moisture and sun protection, long-term storage performance is stable, not easy to deteriorate, used for processing various products, excellent physical and chemical properties, suitable for use in many safety fields.
Technical Specifications & Labeling
This flame retardant masterbatch is specially made for polypropylene material, with pure color and uniform grain shape. The properties are gray-white or light-colored particles, dry and odorless. Its flame retardant grade is UL94 V-2 to V-0, and the addition amount is about 2% -5% depending on the actual demand. The main ingredients are high-efficiency phosphorus-nitrogen flame retardant and carrier resin, which have both thermal stability and dispersion. The melt index (MFI) is about 2-20g/10min, suitable for extrusion or injection molding processing. The moisture content is less than 0.3%, which is better than the general masterbatch standard. The packaging is mostly 25kg woven bag or customized moisture-proof packaging, and it is stored in a cool and dry place. After authoritative third-party testing, it complies with RoHS and REACH environmental protection specifications. The product label is clear, and the batch number, specifications and production date can be checked at the packaging, which is convenient for traceability management.
Preparation Method
Polypropylene is selected as the base material, supplemented by flame retardants such as phosphorus, nitride, and additives to disperse, take an appropriate amount, and mix in proportion. First, polypropylene and flame retardant are premixed, and then put into a high-temperature twin-screw extruder, the temperature is controlled between 180 and 220 degrees, stirred and squeezed to make it evenly dispersed. Extruded strips, cooled and then granulated. In the process, the polymer chain is used as the carrier, and the flame retardant penetrates into the polymer structure with the help of heat energy to form a physical and chemical complex state. The catalytic mechanism varies according to the type of flame retardant, or phosphorus is precipitated to form carbon, blocking oxygen and heat, or releasing nitrogen to dilute the flammable atmosphere and synergistically enhance the flame retardant effect. Finally, the flame retardant masterbatch with uniform color and good dispersion can be directly applied to polypropylene modification to achieve safe and durable effect.
Chemical Reactions & Modifications
The way of chemistry is endless. Polypropylene is a material that is flammable and easy to burn, so it is necessary to select a flame retardant masterbatch to help it. The flame retardant masterbatch contains inorganic compounds or organic phosphine nitrogen and other substances. It enters the polypropylene matrix and is blended at high temperature, intermolecular interaction, or phosphate esters are formed, or inert gases are formed. At this time, a carbon layer barrier is formed inside the material to inhibit the infiltration of oxygen. And free radical capture interferes with the combustion chain reaction, so that the polypropylene is modified to protect itself from the invasion of flames. In addition, chemical modification is supplemented by surfactants to disperse the masterbatch evenly and enhance the interfacial bonding, resulting in both flame retardancy and mechanical properties. Therefore, the fire can be contained, and the stability of the body depends on the clever chemical reaction and delicate material modification.
Synonyms & Product Names
Flame retardant masterbatch, commonly known as flame retardant masterbatch, also known as fire retardant masterbatch, also known as flame retardant masterbatch, is specially made for polypropylene (PP) material. Available on the market, there are names such as Flame Retardant Masterbatch, and there are also labels such as Fire Retardant Masterbatch, FR Masterbatch, PP flame retardant, PP fire retardant masterbatch, PP flame retardant masterbatch, etc. The terms are synonymous, but in fact they refer to the same thing. Or some manufacturers use flame retardant fillers and flame retardant particles as their names, which are synonymous. It is a masterbatch that can improve the fire resistance of polypropylene and is widely used in home appliances, automobiles, electronics and other fields. Although it is used in many names, its efficacy is the same. If you want to buy this product, search the above synonymous terms in the market and online platforms, and you can find what you need. However, each formula is different, so it is necessary to check carefully before use.
Safety & Operational Standards
When using non-flammable masterbatch in polypropylene utensils, be careful to follow safety and operation regulations. When initially unsealing, choose a ventilated place, away from fire sources and high temperatures, and avoid exposure to hot sun and wind. Anyone who holds the masterbatch should wear gloves, masks and goggles to prevent its particles from sticking to the skin or accidentally entering the throat. If the masterbatch splashes on the surface of the body due to carelessness, it is urgent to wash it thoroughly with water and do not leave the residue. If inhaling its dust, it is advisable to leave the workplace quickly and breathe fresh air. If the symptoms are serious, you need medical assistance.
When weighing and mixing the masterbatch, when the purifier is clear, keep the appliance clean and dry, and do not store with impurities. It should be stored in a cool and dry place. It is strictly forbidden to be juxtaposed with acids, alkalis and strong oxidizing agents. It should be sealed and sealed to prevent moisture and fire, and always check whether the packaging is in good condition.
When the machine is running, the equipment must be checked for safety and good quality, and there is no air leakage and electricity leakage. The operator needs to be familiar with the mechanical structure and the method of emergency stop, and know the location of the fire alarm bell and fire extinguishing equipment. During the feeding process, slowly follow the gradual entry, and do not be greedy. When the machine is shut down after work, it is necessary to clean up the remaining materials, pick up the scattered particles, and prevent residual combustibles.
Disposal of waste masterbatch and packaging should be recycled, do not burn and dispose of at will, and once a special person cleans it up. In case of sudden fire, it should be extinguished with a dry powder fire extinguisher, and do not attack it with water to prevent its chemical reaction. In short, before and after the operation must be inspected, abide by this chapter, to ensure personal safety, prevent it from happening, and make production worry-free.
When weighing and mixing the masterbatch, when the purifier is clear, keep the appliance clean and dry, and do not store with impurities. It should be stored in a cool and dry place. It is strictly forbidden to be juxtaposed with acids, alkalis and strong oxidizing agents. It should be sealed and sealed to prevent moisture and fire, and always check whether the packaging is in good condition.
When the machine is running, the equipment must be checked for safety and good quality, and there is no air leakage and electricity leakage. The operator needs to be familiar with the mechanical structure and the method of emergency stop, and know the location of the fire alarm bell and fire extinguishing equipment. During the feeding process, slowly follow the gradual entry, and do not be greedy. When the machine is shut down after work, it is necessary to clean up the remaining materials, pick up the scattered particles, and prevent residual combustibles.
Disposal of waste masterbatch and packaging should be recycled, do not burn and dispose of at will, and once a special person cleans it up. In case of sudden fire, it should be extinguished with a dry powder fire extinguisher, and do not attack it with water to prevent its chemical reaction. In short, before and after the operation must be inspected, abide by this chapter, to ensure personal safety, prevent it from happening, and make production worry-free.
Application Area
The flame resistance masterbatch is used in polypropylene and is widely used in many fields. All plastic woven bags, carpets, fibers, films, plates and injection molding appliances rely on it to enhance the flame retardant effect. Building decoration, walls, ceilings, pipes, add and make the products more fire-proof. Automobile manufacturing, instrument panels, door panels, interior plastic parts, are also used to improve safety. In the field of electrical appliances, various shells and components are used to protect against fire sources. Household appliances, rice cookers, steamers, socket shells, etc., all benefit from the convenience of the flame resistance masterbatch. In addition, toys, packaging, furniture, etc. are in demand. It helps polypropylene to be widely used in all walks of life, taking into account environmental protection and safety, and benefiting people's livelihood.
Research & Development
Flame retardant masterbatch, used in polypropylene materials, its research and development, is the weight of today's polymer industry. Because polypropylene is flammable by nature, if it encounters high temperature, it is prone to disasters. Therefore, Zhonggong is committed to matching new flame retardants and uniformly dispersing them in the masterbatch. The way of research and development, the first emphasis on flame retardant effect, taking into account the performance of the material, without compromising its mechanical strength and processability. Or use halogen-free new materials, or introduce high-efficiency additives, to ensure both environmental protection and safety. Experiments are repeated to obtain the best formula, and the flame retardant grade can reach international standards. Popularized and applied in the fields of wires, electrical appliances, and automobiles, not only to ensure people's safety, but also to help the sustainable development of the industry. There is no end to research and exploration, and innovation is more than that.
Toxicity Research
The flame retardant masterbatch is used in polypropylene, which can effectively inhibit the spread of flame retardant flame and is widely used in various industries. However, its formula is complex, and it mostly contains organic halogens and phosphorus and nitrogen complexes. Examining its toxicity, rats are first used as experiments, gavage and inhalation methods, and its acute toxicity generally shows that the LD50 is very high, and there is no significant risk of death in a short period of time. However, if there is a long-term exposure or high dose exposure, some masterbatches release harmful volatiles, often polybrominated diphenyl ethers and phosphite esters, which can cause mild damage to liver and kidney and abnormal behavior. There is also a long-term accumulation of low doses, which is concerned about endocrine disruption. If the embedded filler releases particulates, it may also cause respiratory damage. However, most of the formed products have been coated, less volatilization, but in the production and waste incineration, toxicity has to be observed. In summary, the use of flame resistance masterbatch should be cautious, and protective facilities and standardized operations are indispensable to ensure the safety of humans, animals and the environment.
Future Prospects
Flame Resistance Masterbatch, which is dedicated to polypropylene materials, has become increasingly sophisticated in recent years. However, its future is vast and its potential is limitless. Looking at the changes in technology, the concept of environmental protection is becoming more and more prosperous, and the green halogen-free flame retardant method will definitely replace the traditional halogen-containing system. The developers study the formula carefully, and strive to combine flame retardancy and mechanics to overcome the problem of low addition and high efficiency. In the future, nano-technology may be used to improve the dispersion and synergy effect, so that the product performance is excellent and the application is wide. Combining with emerging technologies such as artificial intelligence and big data, intelligent formula optimization may be realized, and rapid response to the diverse needs of the market can be achieved. Looking forward to the future, the development of Flame Resistance Masterbatch must be pioneered by safety, environmental protection, safety and efficiency, leading the polypropylene
Where to Buy Flame Retardant Masterbatch for PP in China?
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As a leading Flame Retardant Masterbatch for PP 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 Flame Retardant Masterbatch for PP?
Flame retardant masterbatch is a special additive for polypropylene. It is originally intended to make it non-flammable, slow down the spread of fire, and ensure safety when making a device. Its main ingredients are several, and they are not all, but its core is mostly classified into the following categories:
First, the common ones are halogenated flame retardants, especially brominated and chlorinated ones. Brominated organic compounds such as decabromodiphenylethane and tetrabromobisphenol A, etc., inhibit the combustion chain reaction, decompose in heat, produce halogenated free radicals, capture combustion oxygen, and destroy the flame propagation chain, so the flame retardant effect is excellent. However, halogen-based flame retardants may have harmful gases escaping during combustion, polluting the environment, so they are particularly environmentally friendly and healthy in later generations, so they are gradually replaced by phosphorus-based, nitrogen-based and other environmentally friendly materials.
Phosphorus-based flame retardants, represented by red phosphorus, phosphate ester, ammonium polyphosphate, etc., can generate phosphoric acid at high temperatures, which in turn promotes the carbonization of the surface of polypropylene, forming a dense carbon layer, preventing further intrusion of heat and oxygen, and inhibiting the spread of combustion. Nitrogen-based flame retardants such as melamine, dimelamine, etc., release nitrogen when heated, dilute the oxygen concentration in the combustion zone, and can be combined with phosphorus-based materials to complement each other and improve flame retardancy.
In addition, polymer flame retardants are used as new loves, such as polyphosphazene, phosphorus and nitrogen copolymers, etc. There are inorganic flame retardants such as aluminum hydroxide and magnesium hydroxide, which decompose when heated, release water vapor, cool down and insulate, so that the material is not easy to burn. Inorganic types are widely used, such as talc, silica, etc., to stabilize the shape of the material, enhance the mechanical properties, and delay the fire.
For polypropylene, the masterbatch also needs to add a compatible agent to make the flame retardant and the polymer matrix evenly disperse, without precipitating and damaging its physical properties. Auxiliaries include lubricants, dispersants, and antioxidants, which are all crucial.
In summary, the main components of flame retardant masterbatch are flame retardants, carrier resins, and dispersion aids, mainly phosphorus-based, nitrogen-based, and inorganic synergy, supplemented by an appropriate amount of halogen-based, taking into account environmental protection and efficiency, in order to demonstrate its flame retardant effect in polypropylene and ensure the safety of modern industry and daily life.
First, the common ones are halogenated flame retardants, especially brominated and chlorinated ones. Brominated organic compounds such as decabromodiphenylethane and tetrabromobisphenol A, etc., inhibit the combustion chain reaction, decompose in heat, produce halogenated free radicals, capture combustion oxygen, and destroy the flame propagation chain, so the flame retardant effect is excellent. However, halogen-based flame retardants may have harmful gases escaping during combustion, polluting the environment, so they are particularly environmentally friendly and healthy in later generations, so they are gradually replaced by phosphorus-based, nitrogen-based and other environmentally friendly materials.
Phosphorus-based flame retardants, represented by red phosphorus, phosphate ester, ammonium polyphosphate, etc., can generate phosphoric acid at high temperatures, which in turn promotes the carbonization of the surface of polypropylene, forming a dense carbon layer, preventing further intrusion of heat and oxygen, and inhibiting the spread of combustion. Nitrogen-based flame retardants such as melamine, dimelamine, etc., release nitrogen when heated, dilute the oxygen concentration in the combustion zone, and can be combined with phosphorus-based materials to complement each other and improve flame retardancy.
In addition, polymer flame retardants are used as new loves, such as polyphosphazene, phosphorus and nitrogen copolymers, etc. There are inorganic flame retardants such as aluminum hydroxide and magnesium hydroxide, which decompose when heated, release water vapor, cool down and insulate, so that the material is not easy to burn. Inorganic types are widely used, such as talc, silica, etc., to stabilize the shape of the material, enhance the mechanical properties, and delay the fire.
For polypropylene, the masterbatch also needs to add a compatible agent to make the flame retardant and the polymer matrix evenly disperse, without precipitating and damaging its physical properties. Auxiliaries include lubricants, dispersants, and antioxidants, which are all crucial.
In summary, the main components of flame retardant masterbatch are flame retardants, carrier resins, and dispersion aids, mainly phosphorus-based, nitrogen-based, and inorganic synergy, supplemented by an appropriate amount of halogen-based, taking into account environmental protection and efficiency, in order to demonstrate its flame retardant effect in polypropylene and ensure the safety of modern industry and daily life.
What is the addition ratio of Flame Retardant Masterbatch for PP?
Polypropylene (PP) is a polymer material commonly used in modern technology and is widely used in packaging, building materials, electronics and automobiles. However, due to its flammable nature, it is necessary to add flame retardant masterbatch to enhance its fire resistance. Flame retardant masterbatch is a resin as a carrier, supplemented by a variety of flame retardants and additives, after mixing and extrusion granulation. The proportion of its addition to polypropylene products varies according to product use, flame retardant grade and performance requirements. Common dosage, mostly between 3% and 15%, if you need to reach a higher flame retardant grade, the proportion can be appropriately increased.
If you want the product to pass the UL94 V-2 grade, the amount of flame retardant masterbatch is usually 3% to 8%. If it needs to reach UL94 V-0 grade, it needs to be increased to about 8% to 15%. The actual ratio still needs to refer to the specific properties of the masterbatch used, the type of flame retardant and the compatibility of the substrate. When evaluating, the stability of the flame retardant in high temperature melting needs to be taken into account to prevent the physical properties from declining or the apparent damage of the product.
Polypropylene itself has a non-polar structure, and the flame retardant masterbatch should be selected with good compatibility. The added flame retardant masterbatch should be evenly dispersed to achieve its maximum effectiveness. If the ratio is too low, the flame retardant effect will be insufficient and the product will easily fail. If the dosage is too high, it may cause the material physical properties to decrease, such as weakened mechanical strength, reduced processing fluidity, or precipitation phenomenon on the surface of the product, which affects the appearance and performance.
In addition, the addition ratio should be adjusted appropriately according to the equipment condition during the production process, and mixed well. Standard test methods such as vertical combustion method should be used to test the flame retardant performance of the finished product. If the test results do not meet the requirements, the flame retardant masterbatch ratio can be adjusted slightly until it meets the technical specifications and safety requirements. Although science and technology have advanced and there are many types of flame retardants, safety, environmental protection and material compatibility should still be the top priority when selecting.
In summary, the optimum addition ratio of flame retardant masterbatch to polypropylene depends on the required flame retardant grade and masterbatch performance, usually between 3% and 15%. It is advisable to determine the optimum dosage in a small test before production, which not only demonstrates the flame retardant effect, but also ensures that the material characteristics are intact, so as to integrate safety and practicality.
If you want the product to pass the UL94 V-2 grade, the amount of flame retardant masterbatch is usually 3% to 8%. If it needs to reach UL94 V-0 grade, it needs to be increased to about 8% to 15%. The actual ratio still needs to refer to the specific properties of the masterbatch used, the type of flame retardant and the compatibility of the substrate. When evaluating, the stability of the flame retardant in high temperature melting needs to be taken into account to prevent the physical properties from declining or the apparent damage of the product.
Polypropylene itself has a non-polar structure, and the flame retardant masterbatch should be selected with good compatibility. The added flame retardant masterbatch should be evenly dispersed to achieve its maximum effectiveness. If the ratio is too low, the flame retardant effect will be insufficient and the product will easily fail. If the dosage is too high, it may cause the material physical properties to decrease, such as weakened mechanical strength, reduced processing fluidity, or precipitation phenomenon on the surface of the product, which affects the appearance and performance.
In addition, the addition ratio should be adjusted appropriately according to the equipment condition during the production process, and mixed well. Standard test methods such as vertical combustion method should be used to test the flame retardant performance of the finished product. If the test results do not meet the requirements, the flame retardant masterbatch ratio can be adjusted slightly until it meets the technical specifications and safety requirements. Although science and technology have advanced and there are many types of flame retardants, safety, environmental protection and material compatibility should still be the top priority when selecting.
In summary, the optimum addition ratio of flame retardant masterbatch to polypropylene depends on the required flame retardant grade and masterbatch performance, usually between 3% and 15%. It is advisable to determine the optimum dosage in a small test before production, which not only demonstrates the flame retardant effect, but also ensures that the material characteristics are intact, so as to integrate safety and practicality.
What are the effects of Flame Retardant Masterbatch for PP on PP materials?
Since the advent of polypropylene (PP), it has become popular in the world because of its light weight, chemical resistance, and ease of processing. It is the foundation of many appliances. However, it is flammable, and it spreads rapidly in case of fire, endangering the safety of application. Therefore, later craftsmen considered adding flame retardant masterbatch to protect its safety. For flame retardant masterbatch, the flame retardant is concentrated in a carrier resin to facilitate uniform dispersion in PP.
Adding flame retardant masterbatch can first significantly improve the flame retardancy of polypropylene. Because the masterbatch contains bromine, phosphorus and other elements, it can release non-flammable gases when burned at high temperature, forming a barrier to isolate oxygen and inhibit free radical reactions, reducing the spread of fire. Part of the flame retardant masterbatch can also form a carbon layer at high temperature, covering the surface of the material, so that the material can delay pyrolysis, flame invulnerability, safety is greatly increased, the application scope is expanded, and it can be used in high-safety places such as electronics, electrical appliances, home furnishings, and automotive interiors.
However, the flame retardant masterbatch is not to blame. First, it is feared that the physical properties of PP will decrease, such as mechanical strength and elongation. The cover flame retardant and the base material are not as soluble as the original polypropylene, and the intermolecular binding is slightly weaker. The amount of more will affect the flexibility and toughness of the product. Second, part of the flame retardant masterbatch may cause the light transmittance of the product to decrease, and the apparent susceptibility to spots or Third, if the amount of additives is not suitable or unevenly dispersed, it is easy to cause processing problems such as product foaming and cracking. There are also some halogen-based flame retardant masterbatches, which may release harmful gases and damage public hazards when burned.
Today's technology upgrade, a new generation of halogen-free and environmentally friendly flame retardant masterbatches have come out. Although it can take into account flame retardant and environmental protection, its cost is slightly higher. It is necessary to weigh the advantages and disadvantages of performance and economy in engineering applications, and choose the right one. Overall, flame retardant masterbatches make the application of PP materials more extensive and safe, but they must be added in an appropriate amount and strictly processed in order to achieve the highest performance and safety.
Adding flame retardant masterbatch can first significantly improve the flame retardancy of polypropylene. Because the masterbatch contains bromine, phosphorus and other elements, it can release non-flammable gases when burned at high temperature, forming a barrier to isolate oxygen and inhibit free radical reactions, reducing the spread of fire. Part of the flame retardant masterbatch can also form a carbon layer at high temperature, covering the surface of the material, so that the material can delay pyrolysis, flame invulnerability, safety is greatly increased, the application scope is expanded, and it can be used in high-safety places such as electronics, electrical appliances, home furnishings, and automotive interiors.
However, the flame retardant masterbatch is not to blame. First, it is feared that the physical properties of PP will decrease, such as mechanical strength and elongation. The cover flame retardant and the base material are not as soluble as the original polypropylene, and the intermolecular binding is slightly weaker. The amount of more will affect the flexibility and toughness of the product. Second, part of the flame retardant masterbatch may cause the light transmittance of the product to decrease, and the apparent susceptibility to spots or Third, if the amount of additives is not suitable or unevenly dispersed, it is easy to cause processing problems such as product foaming and cracking. There are also some halogen-based flame retardant masterbatches, which may release harmful gases and damage public hazards when burned.
Today's technology upgrade, a new generation of halogen-free and environmentally friendly flame retardant masterbatches have come out. Although it can take into account flame retardant and environmental protection, its cost is slightly higher. It is necessary to weigh the advantages and disadvantages of performance and economy in engineering applications, and choose the right one. Overall, flame retardant masterbatches make the application of PP materials more extensive and safe, but they must be added in an appropriate amount and strictly processed in order to achieve the highest performance and safety.
Does Flame Retardant Masterbatch for PP comply with environmental standards such as RoHS and REACH?
The flame retardant masterbatch used in polypropylene is not only used to improve the self-extinguishing ability of materials, but also widely used in the fields of electronics, electrical appliances and furniture. Environmental protection standards, especially the European Union's RoHS and REACH are famous. There are more than 40 harmful substances listed, and lead, cadmium, mercury, hexavalent chromium, decabromodiphenyl ether, plasticizers, etc. are prohibited. REACH is more detailed. All substances of high concern must be declared for control. If the substances contained in the masterbatch formula are far from the above restrictions, the harmful species have been removed, and the authoritative third-party inspection does not exceed the limit, and they can comply with the regulations.
Recently, the flame retardant masterbatch in the market is mostly halogen-free, and phosphorus and nitrogen are commonly used as mediators to avoid the pollution caused by halogens. Phosphorus and nitrogen system, high decomposition temperature, combustion precipitation gas dilution oxygen concentration, and outstanding environmental protection tide. In addition, aluminum hydroxide, magnesium hydroxide as the base, combustion does not produce harmful gas, naturally in line with the European Union green standards. If you consider the technical data of the manufacturer, its RoHS and REACH compliance certificates are often there, indicating that there is no risk of exceeding the standard in many tests. According to this inference, the flame retardant masterbatch that has passed the qualification inspection can really meet the European Union and international environmental protection standards.
However, if used carelessly, such as Sb2O3, certain bromides, etc., there is still a risk of exceeding the standard, and the formula needs to be reviewed and the test report verified. And the list of RoHS and REACH substances is updated from time to time. Enterprises need to pay attention to changes in regulations in a timely manner, self-check formulas in a timely manner, and supplement and update technical documents. Only in this way can we ensure that the products can be used in the international market without environmental concerns. In addition to environmental protection, the amount of flame retardant masterbatch should also be moderate, otherwise the material properties will be damaged and will be harmed. Overall, most of the new flame retardant masterbatches sold in the market today have been designed with environmental protection regulations in mind and have high compliance. However, in the end, the test report and qualification certificate are the real evidence, and cannot be blindly believed by the manufacturer's declaration alone. Fiber can only be used if you think carefully, and it will not hinder the access of international trade.
Recently, the flame retardant masterbatch in the market is mostly halogen-free, and phosphorus and nitrogen are commonly used as mediators to avoid the pollution caused by halogens. Phosphorus and nitrogen system, high decomposition temperature, combustion precipitation gas dilution oxygen concentration, and outstanding environmental protection tide. In addition, aluminum hydroxide, magnesium hydroxide as the base, combustion does not produce harmful gas, naturally in line with the European Union green standards. If you consider the technical data of the manufacturer, its RoHS and REACH compliance certificates are often there, indicating that there is no risk of exceeding the standard in many tests. According to this inference, the flame retardant masterbatch that has passed the qualification inspection can really meet the European Union and international environmental protection standards.
However, if used carelessly, such as Sb2O3, certain bromides, etc., there is still a risk of exceeding the standard, and the formula needs to be reviewed and the test report verified. And the list of RoHS and REACH substances is updated from time to time. Enterprises need to pay attention to changes in regulations in a timely manner, self-check formulas in a timely manner, and supplement and update technical documents. Only in this way can we ensure that the products can be used in the international market without environmental concerns. In addition to environmental protection, the amount of flame retardant masterbatch should also be moderate, otherwise the material properties will be damaged and will be harmed. Overall, most of the new flame retardant masterbatches sold in the market today have been designed with environmental protection regulations in mind and have high compliance. However, in the end, the test report and qualification certificate are the real evidence, and cannot be blindly believed by the manufacturer's declaration alone. Fiber can only be used if you think carefully, and it will not hinder the access of international trade.
What certification levels can Flame Retardant Masterbatch for PP achieve?
Polypropylene (PP) is a commonly used polymer material, but its natural properties are flammable. When used in electronics, electrical appliances, building materials and other fields, flame retardant masterbatch is often added to increase its flame resistance. Flame retardant masterbatch is a complex of flame retardant and carrier resin, mixed in PP, which can greatly improve its flame resistance. The certification level of flame retardant masterbatch in polypropylene can be briefly described as follows:
Flame retardant certification, international standards such as UL-94, VDE, IEC, etc. China also has GB/T2408-2008 as the main specification. The test method is mostly to set the ignition source horizontally or vertically on the sample, and record the burning time, the presence or absence of droplets and whether the cotton pad is ignited. The UL-94 classification is particularly respected by the industry, with grades ranging from high to low as V-0, V-1, V-2 and HB.
PP prepared with high-quality flame retardant masterbatch can often reach the V-2 grade of UL-94, which can self-extinguish without continuous combustion, and some high-efficiency masterbatches can help PP reach V-1 and V-0 grades. V-0, self-extinguishing after three seconds of fire, and no burning droplets ignite the cotton pad; V-1, although there are droplets, the self-extinguishing speed is also good; V-2, the droplets can ignite the cotton pad, but the combustion of the main material has been effectively controlled. HB is the lowest grade, only the horizontal combustion rate is measured, and it is suitable for non-critical structures.
In addition to UL-94, there are also tests such as European EN 60695, IEC 60695, and American ASTM E84 (smoke density and surface combustion). Some high-performance masterbatches can make PP pass special certifications such as VO (halogen-free flame retardant) and 99V0, especially suitable for applications of electronic components or high environmental protection requirements. Domestic GB/T2408-2008 is roughly connected to UL-94, and the flame retardant properties are also determined by VO, V1, and V2. VO is the best.
The achievement of flame retardant effect is not only related to the quality of the masterbatch itself, but also related to factors such as loading ratio, processing technology, and product thickness. Thickness of 1.6mm is often selected for certification testing, but the thickness decreases, and the flame retardant grade may decrease. Whether the polypropylene masterbatch can reach the VO grade depends on the refinement of scientific formulation, uniform dispersion and carrier compatibility.
Overall, the best masterbatch is selected and the process is appropriate. The polypropylene is modified with flame retardant masterbatch, which can reach UL-94 V-2 and above. The highest standards such as V-0 can also be achieved, which is sufficient to meet the high-level flame retardant certification required in electrical, electronic, transportation, construction and other fields.
Flame retardant certification, international standards such as UL-94, VDE, IEC, etc. China also has GB/T2408-2008 as the main specification. The test method is mostly to set the ignition source horizontally or vertically on the sample, and record the burning time, the presence or absence of droplets and whether the cotton pad is ignited. The UL-94 classification is particularly respected by the industry, with grades ranging from high to low as V-0, V-1, V-2 and HB.
PP prepared with high-quality flame retardant masterbatch can often reach the V-2 grade of UL-94, which can self-extinguish without continuous combustion, and some high-efficiency masterbatches can help PP reach V-1 and V-0 grades. V-0, self-extinguishing after three seconds of fire, and no burning droplets ignite the cotton pad; V-1, although there are droplets, the self-extinguishing speed is also good; V-2, the droplets can ignite the cotton pad, but the combustion of the main material has been effectively controlled. HB is the lowest grade, only the horizontal combustion rate is measured, and it is suitable for non-critical structures.
In addition to UL-94, there are also tests such as European EN 60695, IEC 60695, and American ASTM E84 (smoke density and surface combustion). Some high-performance masterbatches can make PP pass special certifications such as VO (halogen-free flame retardant) and 99V0, especially suitable for applications of electronic components or high environmental protection requirements. Domestic GB/T2408-2008 is roughly connected to UL-94, and the flame retardant properties are also determined by VO, V1, and V2. VO is the best.
The achievement of flame retardant effect is not only related to the quality of the masterbatch itself, but also related to factors such as loading ratio, processing technology, and product thickness. Thickness of 1.6mm is often selected for certification testing, but the thickness decreases, and the flame retardant grade may decrease. Whether the polypropylene masterbatch can reach the VO grade depends on the refinement of scientific formulation, uniform dispersion and carrier compatibility.
Overall, the best masterbatch is selected and the process is appropriate. The polypropylene is modified with flame retardant masterbatch, which can reach UL-94 V-2 and above. The highest standards such as V-0 can also be achieved, which is sufficient to meet the high-level flame retardant certification required in electrical, electronic, transportation, construction and other fields.
