Polypropylene Flame Retardant

Polypropylene Flame Retardant

    Specifications
    HS Code 309788
    Flammability Rating V-0 or equivalent in UL 94
    Thermal Stability High, can withstand processing temperatures
    Mechanical Strength Maintains good strength properties
    Chemical Resistance Resistant to many chemicals
    Low Smoke Generation Produces relatively low smoke when burning
    Non Halogen Content May be halogen - free for environmental friendliness
    Compatibility Good compatibility with polypropylene matrix
    Processability Can be easily processed like regular PP
    Color Stability Maintains color under normal use
    Aging Resistance Good resistance to aging effects

    As an accredited Polypropylene Flame Retardant factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Polypropylene Flame Retardant: Packed in 25 - kg bags for easy handling and storage.
    Storage Polypropylene flame retardant should be stored in a cool, dry, well - ventilated area. Keep it away from heat sources, open flames, and direct sunlight to prevent decomposition or ignition risks. Store in a tightly - sealed container to avoid moisture absorption, which could affect its performance. Also, ensure separation from reactive substances to maintain its chemical stability.
    Shipping Polypropylene Flame Retardant is shipped in sealed, corrosion - resistant containers. These are carefully packed to prevent spills and damage. Transport is via reliable carriers, following strict chemical safety regulations for secure delivery.
    Free Quote

    Competitive Polypropylene Flame Retardant 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.

    We will respond to you as soon as possible.

    Tel: +8615380400285

    Email: sales2@liwei-chem.com

    Polypropylene Flame Retardant Polypropylene Flame Retardant
    General Information
    Historical Development
    Since the middle of the 20th century, polypropylene has been used by the world, but its flammability is weak, which has been criticized many times. At the beginning, the process was not perfect, and halogen flame retardants were used. Although it can suppress flames, it is toxic and harmful to the environment. By the 1980s, scientists had devoted themselves to exploring and researching phosphorus, nitrogen and inorganic compounds, which gradually improved their efficiency and were environmentally friendly. After the 21st century, nano and polymer synergistic technologies have changed with each passing day, and the performance of flame retardant polypropylene has become more and more obvious, and it is widely used in electrical appliances and transportation industries. Recently, new materials that can be recycled have come into being, which is in line with the general trend of sustainable development. After decades of innovation, polypropylene flame retardant products have changed from coarse to fine, from dangerous to safe, showing the power of scientific progress and human wisdom.
    Product Overview
    Polypropylene flame retardants are made to enhance the flame retardant properties of polypropylene materials. The reason is to block the spread of phlogiston and curb the expansion of fire. Its color is clean, the particle size is uniform, and it is easy to blend with resins. It is used in the fields of electronics, automobiles, and construction, and can effectively improve the safety level of materials. This material has good heat resistance, stable chemical properties, does not change its original physical properties, and does not produce harmful gases. Adding an appropriate amount not only ensures the lightness and toughness of the original material, but also makes the plastic product difficult to burn between fires, which not only responds to the fire danger in a timely manner, but also complies with environmental protection norms. Suitable for the needs of high-end products, it is highly respected by the industry and is an indispensable choice for today's high-performance materials.
    Physical & Chemical Properties
    Polypropylene flame retardant is based on polypropylene, supplemented by flame retardant additives, mixed to make. Its color is white or yellowish, tough and light, pressed by hand, soft but not brittle. Its density is about 0.90 to 0.92 grams per cubic centimeter, which is slightly lighter than other synthetic resins. The melting point can reach 170 degrees Celsius, melting but not overflowing, suitable for high temperature process. It is insoluble in water, and has good resistance to a variety of organic solvents, not easy to be invaded by corrosion. When it encounters strong acids and strong oxidants, it can slow down biochemical reactions. The addition of flame retardants makes polypropylene produce little smoke during combustion, and its limiting oxygen index can reach between 26% and 30%, much higher than that of bulk polypropylene. It is self-extinguishing when burning, and the carbonization layer is dense, slowing down the spread of fire. It has excellent heat resistance, electrical insulation, and is non-toxic and odor-free, making it suitable for wide use in many fields such as industrial electronics.
    Technical Specifications & Labeling
    Polypropylene flame retardant, tough and light, the color is more milky white, uniform particle shape. Its specific gravity is about 0.90 to 0.92, the melting point is about 165 degrees Celsius, with excellent transparency and chemical resistance. The flame retardant grade reaches UL94 V-0, the combustion is slow, the smoke is micro, and the safety is particularly good. The oxygen content index is greater than 26, the tensile strength is about 20 MPa, the elongation is 600, and the bending modulus is about 1,500. Comply with RoHS, REACH environmental protection specifications, and are free of halogens and heavy metals. It is suitable for high temperature processing in the fields of electronics, automotive industry and home appliances. It is suitable for injection and extrusion. The packaging is mostly woven bags, and the net weight of each bag is 25 kilograms. The storage should be protected from light and moisture. The product batch number and production date are clearly indicated by the label, which is convenient for traceability and efficient management.
    Preparation Method
    In the preparation of polypropylene flame retardant, polymer propylene is first taken as the base material, supplemented by chemical raw materials such as phosphorus, nitrogen, halogen, antimony, etc., and mixed evenly according to a certain proportion. In the process, the main material and the flame retardant auxiliary agent are initially fused with a high-speed mixer, and then placed in a twin-screw extruder at a high temperature (140 to 180 degrees Celsius). In this process, catalysts such as antimony trioxide and peroxide are added to promote chemical crosslinking and grafting reactions between phosphorus and nitrogen auxiliary agents and polypropylene molecular chains to enhance the pyrolysis and carbonization ability of the material. The reaction process is controlled by parameters such as temperature, pressure and speed, so that the auxiliary agents are evenly distributed and do not gather. Finally, it solidifies quickly in a cooling water bath, cuts it into granules, and uses it for subsequent molding. The mechanism is that flame retardant elements release free radicals to help form a carbon layer and isolate the oxygen source, so it is flame retardant and safe.
    Chemical Reactions & Modifications
    Polypropylene is a polymer material, which is light and tough, but flammable in case of fire, making it difficult to be widely used in the field of fire protection. Chemists apply techniques based on materials, or introduce halogens, nitrogen and phosphorus and other flame retardants, or apply copolymerization and grafting to make the molecular backbone coexist with flame retardant groups and complement each other. Halogen-based flame retardant, which can separate free halides at high temperatures, interrupt the combustion chain reaction, and then burn toxic fumes; halogen-free flame retardant, commonly used phosphorus and nitrogen, generate non-flammable gases and carbon layers during combustion, isolate air, or chemically cross-link modification to improve flame retardancy and material strength. This reaction and modification not only makes polypropylene have excellent flame retardant properties, but also retains its original physical properties, and is widely used in electronics, automobiles and other fields.
    Synonyms & Product Names
    Polypropylene flame retardant, also known as polypropylene flame retardant masterbatch, flame retardant polypropylene, flame retardant PP, etc., has many synonyms, and is named because its main material is polypropylene. When the goods are in circulation, there are PP flame retardant king, flame-resistant granules, halogen-free flame retardant PP, environmentally friendly and efficient flame retardant masterbatch, flame-resistant masterbatch and other names on the market, all of which refer to this thing. Or it is called PP flame retardant additive, also known as PP fire retardant, each has its own trade habits, but it is essentially the same. Such product names are numerous, and merchants compete for innovative names to attract attention due to publicity strategies. However, looking at its essence, it is all about improving the flame resistance of polypropylene materials. Although the words are changeable, they refer to the same thing, and it is another name for the same thing. If the distinction is unclear, it is easy to fall into confusion. Today, various synonyms and trade names are listed, so that those who know it will not be confused about its name and clearly know that it is the same thing.
    Safety & Operational Standards
    Polypropylene Flame Retardant is a polypropylene material with flame retardant function. It is gentle in nature and can resist flames. It is widely used in many fields of appliances and building materials. However, when it is operated and stored, it is easy to cause harm if it is meticulous or does not follow the rules. When operating, it must be placed in a ventilated place, protected from moisture and rain, and away from open flames and heat sources. Operators must wear special gloves and masks, and do not let the skin and respiratory tract come into direct contact with it. If the residue is sprinkled externally, it should be removed with cleaning equipment, and it should not be picked up with hands. Day and night, beware of mixing it with oxidants, strong acids, strong alkalis, etc. If it is accidentally mixed or caused to react, it will release toxic gases and endanger the body. Storage should be in a cool and dry place, properly sealed cover, not exposed to the hot sun, and there should be anti-static and lightning protection measures. When transferring and handling, it must be handled with care, not tilted and dumped to prevent debris from flying. If there is dust accumulation and dispersion, it should be removed immediately to avoid fire due to accumulation. Disposal and recycling must follow regulations, and it is strictly forbidden to burn or dump at will. In case of accidental entry, wash with water urgently and consult medical assistance. If inhalation or ingestion of mouth and nose, leave the scene in time, take fresh air, and if the disease is not cured, seek medical attention. In case of large-scale leakage, it is necessary to evacuate unrelated people, strictly prohibit fireworks, and professionals can dispose of them. Where a fire alarm is involved, foam, dry powder, and carbon dioxide should be used as fire extinguishers, and it is not advisable to pour water. Those who are accustomed to using things should always be cautious and learn all rules and methods. The most important thing is to prepare for a rainy day. Act properly, just keep peace, forget the norms, and regret it. Operation must strictly abide by various safety regulations, storage must be in accordance with regulations, and its environment must be inspected at any time to ensure safety. If used in this way, it can extend the use of its materials to ensure the safety of others and themselves.
    Application Area
    Polypropylene flame retardant is actually needed for today's technological manufacturing. It can be widely used in electrical enclosures, auto parts, building boards, electronic devices and household utensils. Due to its light weight, corrosion resistance, convenient processing, and self-extinguishing in case of fire, it adapts to the high standards of modern safety. The sheath of wires and cables, and the components of office facilities all rely on this to improve the fire performance. There are also furniture toys, which can be used to keep children safe and their homes at ease. Chemical containers and packaging materials are also often transported and stored with polypropylene flame retardants. Aerospace, rail transit, and many key components rely on their flame protection properties to withstand disasters. Industry and commerce, see its shape, and really help the stability of the national economy and people's livelihood.
    Research & Development
    The development of flame retardant polypropylene begins with the need for the progress of chemical materials. Polypropylene is widely used in daily use and industry, but it is flammable and has potential safety hazards that cannot be ignored. Therefore, people with lofty ideals focus on research and seek breakthroughs in adding flame retardants. Although halogen flame retardants are effective at the beginning, environmental concerns arise. After switching to halogen-free flame retardant, phosphorus and nitrogen are essential, which can not only inhibit combustion, but also help reduce toxicity and smoke, and conform to the trend of green sustainability. Technology is becoming increasingly subtle, and nano-fillers are also entering the research and development field, in order to improve flame retardant performance, taking into account the convenience of mechanics and processing. Today's polypropylene flame retardant products are widely used in automotive, electronics, and construction, ensuring safety without damaging their own uses. They rely on decades of intensive research and development, and are one of the important advances in material science and technology.
    Toxicity Research
    Polypropylene flame retardants are commonly used in modern processes, especially for improving its fire resistance. However, the halogen compounds, inorganic elements and organic phosphorus contained in it are added to polypropylene to inhibit its combustion, or to cause suspicion of toxicity. According to the test, halogen gases and particles are released during incineration, which can harm the lungs and cause long-term exposure or chronic diseases. Although the toxicity of organic phosphorus is less than that of halogen, it also evaporates under high temperature conditions, and may accumulate in the body for a long time. There are also antimony-based synergistic agents, although the dosage is small, they may be ingested or interfere with blood production. Looking around all kinds of flame retardants, although each has its own effect, the toxicity cannot be ignored. It is appropriate to operate cautiously during production, application, and disposal to protect the health of humans and animals, and to weigh the pros and cons with scientific methods, and then seek low-toxic green alternatives, so that human livelihoods and the environment can be sustainable.
    Future Prospects
    Polypropylene flame retardant materials are used in many fields today, but the technology is changing with each passing day, and the performance needs to be improved. Looking to the future, the process will be refined, the flame retardant efficiency will be better, and the environmental protection performance will also be sublimated. New flame retardants may be dominated by halogen-free and low toxicity to reduce environmental pollution and protect human health. With the rise of new energy and smart manufacturing, the demand for lightweight materials and high performance is increasingly urgent. The combination of composite technology and nanotechnology can endow polypropylene flame retardant products with better comprehensive properties. If flame retardancy, mechanics, processing and recycling can be efficiently considered, its application in electronics, electrical appliances, transportation, construction and other industries will increase day by day. From this perspective, polypropylene flame retardant products have broad prospects and are expected to lead the new trend of green materials and contribute to the grand cause of sustainable development.
    Where to Buy Polypropylene Flame Retardant in China?
    As a trusted Polypropylene Flame Retardant manufacturer, we deliver: Factory-Direct Value: Competitive pricing with no middleman markups, tailored for bulk orders and project-scale requirements. Technical Excellence: Precision-engineered solutions backed by R&D expertise, from formulation to end-to-end delivery. Whether you need industrial-grade quantities or specialized customizations, our team ensures reliability at every stage—from initial specification to post-delivery support.
    Frequently Asked Questions

    As a leading Polypropylene Flame Retardant supplier, we deliver high-quality products across diverse grades to meet evolving needs, empowering global customers with safe, efficient, and compliant chemical solutions.

    What is the main function of Polypropylene Flame Retardant?
    Polypropylene flame retardant is actually an important chemical material to prevent the harm of polypropylene that is easy to burn and melt in the fire. Polypropylene is essentially light and tough, corrosion-resistant, and has good electrical insulation properties. It is widely used in the fields of appliances, packaging, electronics, automobiles and building materials. However, it is just and flammable in case of fire, and once melted, it is easy to drip and cause damage, deepening the disaster. In order to avoid this worry, technicians mixed flame retardants into it to make polypropylene flame retardant materials.
    The entry of flame retardants does not change its essential use, but it can greatly improve the safety in fire. There are two reasons for this: First, flame retardants precipitate refractory components when heated, which dilute the surrounding flammable gases or absorb heat, making it difficult to spontaneously ignite. Both form a carbon film under the action of high temperature, adhere to the surface of the material, isolate oxygen, and inhibit the spread of combustion. There are also some halogen-based flame retardants that release hydrogen halides, trap free radicals, and contain the chain of combustion reactions, eventually extinguishing the flame.
    Polypropylene flame retardant materials can reduce the hazard of fire, protect property safety, and protect human life at high temperatures and where fire sources are easily accessible. For example, the shell of electronic appliances, automotive parts, building decoration, transportation facilities, etc., are all based on this principle. Not only to strengthen structural stability, but also to comply with modern environmental protection regulations. The flame retardant technology applied today has gradually changed from traditional halogens to halogen-free, phosphorus-based, and nitrogen-based, in order to meet the society's hope of being environmentally friendly.
    In summary, the function of polypropylene flame retardants is to improve the fireproof ability of materials and curb the risk of fire and spread. Its benefits are great, which can make polypropylene from flammable to safe and usable, expand the wide range of applications, and human-made products rely on Changan without worry.
    What is the addition ratio of Polypropylene Flame Retardant?
    Polypropylene, a polymer material commonly used in foundry, is highly flammable, and is prone to safety hazards due to multiple uses. Even to avoid the hazard of combustion, it has become a common technology in the world to match flame retardants in polypropylene. There are many types of flame retardants, including phosphorus, nitrogen, and gold oxides, etc. However, the most suitable dosage, such as flame retardant type, required flame retardant, etc., and the performance of the end product depends on the number of parts.
    Now in terms of flame retardant, such as bromine flame retardant, its addition amount is about 20% of the weight of the usual fat, which can be reduced to UL94 V-0, etc. If the same amount of trioxide is used, the consumption may be slightly reduced. However, the high dosage of flame retardant is easy to cause heavy weight and poor environmental conditions, especially the US market has been limited.
    If phosphorus-based flame retardants are used, such as polyphosphoric acid or pentaerythritol phosphoric acid, the addition amount is usually less than 15% to 25%. Nitrogen-based flame retardants, such as melamine, are also often used in the same way as phosphorus-based. However, phosphorus and nitrogen are carefully balanced with flame retardant formulations to combine the true color of flame retardant materials.

    To sum up, the amount of flame retardant polypropylene, various types, elements, phosphorus and nitrogen, etc., are all available, and the most certain one must be used. Only with a reasonable ratio and first mixing techniques can we combine multiple requirements such as flame retardant and protective force to make the use of polypropylene more safe.
    What is the Environmental Performance of Polypropylene Flame Retardant?
    Polypropylene flame retardant is a commonly used product in the material industry today, and its environmental protection performance is also of concern to everyone. Polypropylene body is a petrochemical product, which is clean, not easy to evaporate harmful gases, and can be recycled. It generates less smoke and dust during incineration, and has no toxic residues, which is in line with green environmental protection. However, the nature of flame retardants is the key. Organohalogen flame retardants are commonly found in early formulations. After a long time of incineration or decomposition, they are prone to toxic gases such as dioxins, polluting the atmosphere, and even endangering human health. It is also difficult to dispose of waste. Today's environmental regulations are severe, and researchers are competing to replace them with halogen-free flame retardants, such as phosphorus, nitrogen, inorganic aluminum hydroxide, magnesium hydroxide, etc., which produce smoke and harmful substances during combustion far inferior to halogen systems, and there is no risk of persistent bioaccumulation.
    In addition, halogen-free flame retardant polypropylene, its production process is gradually mature, most of the additives are non-toxic, and the burden on the environment in the life cycle is relatively light. In addition, some additives can form a compatible system with the polypropylene matrix, reducing precipitation, making it difficult to migrate to the environment in practical applications, and ensuring product safety. In terms of resource recovery, polypropylene flame retardant materials can be reused if they are easily recycled, reducing the pressure of waste on soil and water bodies, and contributing to the implementation of circular economy. However, there are many types of flame retardants, and the more new and environmentally friendly products are, the manufacturing cost will increase relatively, and it will take time to promote. The environmental performance of polypropylene flame retardant materials is fundamentally dependent on the flame retardant used and the amount added.
    All in all, if halogen-free and efficient flame retardant technology is selected, and combined with high recycling technology, the environmental protection performance of polypropylene flame retardant materials is very considerable, which is in line with the general trend of human green consumption and sustainable development. The whole life cycle of the material should be carefully evaluated, from the source to the waste, and the disadvantages should not be left behind.
    How does Polypropylene Flame Retardant affect the physical properties of the product?
    Polypropylene and flame retardants have many changes in its physical properties. The flame retardant feed can not only slow down the combustion, but also affect the properties of the body. First, the mechanical properties may be lost. The flame retardant molecules are embedded in the polypropylene chain, which makes the polypropylene chain arranged disordered, the rigidity is enhanced and the toughness is reduced. The tensile strength and impact strength are often reduced, especially for inorganic flame retardants. Second, the thermal properties are also difficult to preserve. The introduction of flame retardants causes the thermal deformation temperature of polypropylene to decrease, and the melting point is slightly reduced. The increase in the heat conduction path of particles makes the product easy to soften and the heat resistance decreases.
    If the transparency is viewed, the flame retardant is mostly insoluble in polypropylene, and the transparency of the color is often lost, and it is no longer clear. If fillers such as alumina and magnesium hydroxide are used, the refraction is different, so the haze increases and the color is dull. Another example is fluidity and processing performance, which are affected every time. Flame retardants give the system increased friction and increased melt viscosity. When calendering and injection molding, the fluidity is not good, the mold filling is insufficient, and the product is prone to voids, shrinkage, and thin walls, especially. If the amount of flame retardant is too high, the surface will be rough and there will be precipitation, so it must be used with caution.
    The types of flame retardants also have advantages and disadvantages. Halogens are very effective in suppressing combustion, but they affect the mechanical properties after precipitation, and there is a risk of environmental protection. The phosphorus-nitrogen system takes into account flame retardancy and mechanics, but the cost is quite high. Using nano-flame retardant doping as a method, although it can reduce the loss of performance, the process requirements are very high.
    In short, polypropylene plus flame retardant, the flame retardant benefits are obtained, but the physical properties are sacrificed. When taking it, the weight should be weighed, depending on the use. If you need high strength and high transparency, you can only use flame retardant in quantity, and supplement it with a coupling agent to improve the performance. Otherwise, the performance will deteriorate and it will be difficult to use it as a device. Users must understand the reason before they can make a good device and achieve its use.
    What types of polypropylene products are Polypropylene Flame Retardants suitable for?
    Polypropylene is a polymer material commonly used in modern technology. It is light and strong, resistant to chemical corrosion, and has convenient craftsmanship. It is widely used in appliances, packaging, fibers, pipes, automotive parts, and electrical insulation. However, it is difficult to block flames by nature. If it encounters an open flame, it is flammable and produces smoke, which is a safety concern. Therefore, it must be supplemented by flame retardants and processed into flame retardant polypropylene to meet the needs of all walks of life.
    Flame retardant polypropylene is widely used in electronic appliances such as junction boxes, sockets, switches, cable jackets, etc. Cover electronic devices rely on the insulation of plastics. If they are exposed to high temperature current, they are highly susceptible to burning. Flame retardant policies are used to ensure their stability and comply with safety regulations. Another example is the automotive field, interior parts, instrument panels, door panels, ventilation ducts, etc., are often made of polypropylene. Due to the narrow space of the car body, once a fire breaks out, the consequences are unimaginable. Only flame retardant polypropylene is enough to protect personal and property safety.
    At the same time, household appliance shells, microwave oven turntables, washing machine parts, refrigerator interiors, etc. all benefit from flame retardant polypropylene, which can not only prevent fires, but also maintain mechanical properties and aesthetics. Office equipment such as printers, copiers, computer casings, etc. also rely on this technology. The packaging field is also used for special transportation of refractory packaging boxes, containers, etc., to prevent accidental ignition and explosion.
    In the construction industry, pipes, plates, decorative components, etc., flame retardant polypropylene is used to prevent micro-damage. In terms of fiber products, flame retardant polypropylene fibers can be used to make carpets, curtains, clothing, and aerospace fabrics to increase the safety of clothing.
    Where there is a fire hazard and high safety standards are required, polypropylene can be modified with flame retardancy and can be used as needed. Its flame retardant properties vary with the properties of the additives, and environmental regulations are the standard. In short, flame retardant polypropylene can be widely used in almost all kinds of polypropylene products that require fire protection and flame retardant requirements, which is the guarantee of modern life and industry.