Red Phosphorus Flame Retardant Masterbatch
| HS Code | 459395 |
| Flammability | Reduces flammability |
| Thermal Stability | Good thermal stability |
| Chemical Resistance | Resistant to some chemicals |
| Dispersion | Good dispersion in polymers |
| Color | Typically colorless to red - brown |
| Form | Masterbatch form for easy processing |
| Compatibility | Compatible with many polymers |
| Low Toxicity | Relatively low toxicity |
| Environmental Impact | Comparatively lower environmental impact |
As an accredited Red Phosphorus Flame Retardant Masterbatch factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Red Phosphorus Flame Retardant Masterbatch in 25 - kg bags for easy handling. |
| Storage | Red Phosphorus Flame Retardant Masterbatch should be stored in a cool, dry, well - ventilated area. Keep it away from heat sources, open flames, and direct sunlight. Store in a tightly - sealed container to prevent moisture absorption and contact with oxidizing agents. Avoid storing near reactive chemicals to ensure its stability and quality. |
| Shipping | Red Phosphorus Flame Retardant Masterbatch is shipped in well - sealed containers to prevent exposure. Shipment follows strict chemical transport regulations, ensuring safe handling during transit to avoid any risks. |
Competitive Red Phosphorus Flame Retardant Masterbatch 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
Phosphorus red flame retardant masterbatch is the product of innovation in the chemical industry. At the end of the 20th century, European and American countries explored the path of flame retardant polymer materials. Occasionally, phosphorus red was the main material, which was strong and halogen-free, which was beneficial to environmental protection. At the beginning of the technology was not perfect, the particle size was large, and the dispersion was uneven, which limited its application. By the beginning of the 21st century, nano-crushing and surface coating methods had gradually matured, and the quality of phosphorus red masterbatch was improved. Chinese scholars have also devoted themselves to research and development, introduced new ones, and improved the process to increase its heat resistance and fluidity. Today, it is widely used in cable, automobile, electronics and many other fields. Tracing its development history is the result of the joint promotion of scientific and technological progress and environmental awareness in the times, which not only ensures material safety, but also protects human ecology.
Product Overview
Red phosphorus flame retardant masterbatch is made of high-purity red phosphorus as the main material, supplemented by polymer carrier, and refined by high-tech technology. Its color is uniform, the particle size is delicate, and the dispersion is good, which is compatible with many types of polymers. Its addition to the product can greatly improve the fire resistance of the material, suppress the spread of fire, and significantly reduce the generation of harmful flue gas and corrosive gases. Compared with common brominated flame retardants, it is halogen-free and environmentally friendly, and has high safety. It is not affected by moisture, and it is easy to store and transport. It is widely used and suitable for various fields such as electronics, electrical appliances, automobiles, and building materials. It not only guarantees the performance of raw materials, but also recognizes the use of flame retardancy. It is an indispensable high-quality auxiliary for modern polymer materials.
Physical & Chemical Properties
Red phosphorus flame retardant masterbatch, red as Dan, strong and slightly brittle. The appearance of the particles is uniform, the surface is smooth, and there is a light and slightly special gas. High specific gravity, sinking in water, difficult to dissolve in common solvents. Not easy to spontaneously ignite in case of fire, when the temperature rises to a certain value, phosphine is gradually released, which can inhibit the flame potential. Good heat resistance, stable performance at room temperature, reactive in case of strong acid. Chemical properties are relatively stable, placed in the air, due to the protection of the coating material, it is difficult to oxidize. Mixed into polymer materials, excellent compatibility with resins, uniform dispersion, can effectively improve the overall flame retardant properties. During processing, it is not easy to evaporate, and the net taste is harmless, without damaging the original physical properties of the product. Due to its characteristics, it is both safe and convenient for storage and transportation, and can be widely used for flame retardancy of various types of polymer materials, especially in modern industries.
Technical Specifications & Labeling
This product is called red phosphorus flame retardant masterbatch, uniform in shape, spherical particles, dark red in color. The main material is high-purity red phosphorus, the content is about 50%, supplemented by polyolefin carrier, with dispersion and antioxidant additives, the particle size is about 2 to 5 mm. Moisture is controlled below 3/1000, good fluidity, and the temperature range is 180 to 230 degrees. Wide compatibility, can be blended with a variety of plastics, flame retardant grade UL94 V-0. Packaging is sealed, moisture-proof and light-proof, net weight is 25 kg. Its performance is stable, the smell is weak, the volatile matter is less, and the release is moderate during processing, without dust pollution. Used in electronic devices, household appliances and polymer materials, it can greatly improve the flame retardant performance of the product, and the effect is excellent, in line with the European Union ROHS environmental protection specifications.
Preparation Method
Red phosphorus flame retardant masterbatch, preparation method, the first choice of pure red phosphorus as the main material, supplemented by polymer resin and dispersant. First grind the red phosphorus, sieve for uniformity. Then take the resin and place it in a closed container, slowly add red phosphorus powder and dispersant, stir well. Mixed at high temperature (about 150 degrees Celsius), so that the red phosphorus is evenly embedded in the resin matrix. When the material is melted, extruded and cooled, cut into granules. Its catalytic mechanism, red phosphorus releases phosphoric acid and polymer in case of fire, which can promote the carbonization of the surface of the substrate and form a dense carbon layer, which can isolate the transfer of oxygen and heat, inhibit the formation of decomposition volatiles, and achieve the effect of flame retardancy. In this way, several steps to obtain red phosphorus flame retardant masterbatch, excellent performance.
Chemical Reactions & Modifications
The red phosphorus masterbatch is a polymer as a carrier, and the red phosphorus is finely dispersed in it, so that its flame retardant effect can be demonstrated. The preparation of the red phosphorus needs to be coated on the surface first, and the common resin or silane coupling agent is used to interact with it to reduce the risk of oxidation and spontaneous combustion. The method of coating is chemically modified, because the coupling agent can react with the surface functional group of the red phosphorus to form a firm interface, and at the same time give a pro-polymer surface layer to improve compatibility. After high temperature mixing, the interaction between red phosphorus and the matrix polymer can partially promote the formation of phosphorus-carbon bonds in the polyolefin chain segment, making the flame retardant system more stable. However, it is necessary to inhibit the sublimation of red phosphorus and the generation of by-products in the process, so antioxidants and lubricants are introduced, and free radical capture and decomposition intermediates are used to inhibit adverse reactions. Overall, the flame retardancy of red phosphorus masterbatch depends on the synergy of chemical reactions and modification methods to achieve both stability and efficiency.
Synonyms & Product Names
Red Phosphorus Flame Retardant Masterbatch, or Red Phosphorus Flame Retardant Masterbatch, also known as Red Phosphorus Masterbatch, Red Phosphorus Masterbatch, Red Phosphorus Masterbatch, Red Phosphorus Flame Retardant, Red Phosphorus Flame Retardant Masterbatch, or Red Phosphorus Flame Retardant Masterbatch, in English Red Phosphorus Flame Retardant Masterbatch, or simply RP Flame Retardant Masterbatch, in the market, due to the name of the product, or "Halogen-free Flame Retardant Masterbatch", "High Temperature Phosphorus Masterbatch" to recognize its use, are synonymous with this product. During this period, there are those with brands and numbers as trade names, such as RP-201, RP-FRMB, etc., all of which aim to highlight their unique properties and adaptations. Their products are used in plastics, rubber and other industries, and their fire retardant performance is remarkable and widely adopted. Therefore, many names of red phosphorus flame retardant masterbatch are born because of their functions, uses and marketing convenience. Although the names are different, they refer to the same thing.
Safety & Operational Standards
Red phosphorus flame retardant masterbatch is an important chemical product. It is used in flame retardant plastics and is widely applied to all ends of the process. Its strong nature is flammable in case of fire, and it will change in case of aquatic phosphoric acid. During operation, it is advisable to avoid being impatient and follow the rules. Workers should wear protective clothing, gloves, and goggles to avoid direct contact with the skin. Store the masterbatch in a cool and ventilated place, away from the high temperature of the kindling, and do not expose it to direct sunlight. When the container is tightly closed, moisture-proof and moisture-proof, the appliance should be dedicated. Before application, re-calibrate it intact. When taking it, pour it slowly, do not raise dust and fly, the operation field needs to be ventilated frequently, and the exhaust facilities must be sound. In case of splashing and spilling, it should be removed immediately to avoid accumulation and explosion. Handling and transportation should be handled with care, avoid violent collision and friction, and do not coexist with oxidants, strong acids and alkalis. Residual waste should be disposed of according to regulations, and should not be discarded in ditches and fields at will. In case of fire, use sand or dry powder fire extinguishers to flush it. Do not extinguish it with water, for fear of phosphine, which will harm your life. After work, you must wash your hands and faces to prevent residual invasion. Supervisors must regularly train staff to know the hazards, familiarize themselves with operating regulations, replace worn protective equipment in a timely manner, and supervise the implementation of norms. If there is poisoning or accidental inhalation, you should quickly leave the scene and move to a ventilated place. If it is serious, you should seek medical treatment quickly. Therefore, everything is more important than caution. Following the operating rules can save your life and extend the use for a long time.
Application Area
Red phosphorus flame retardant masterbatch, refined and made, is a fireproof aid for many polymer materials. Its mild nature, excellent compatibility, commonly used in nylon, polyethylene, polypropylene and other plastics. Auto parts, electronic components, cable sheaths and building materials, all rely on to increase its flame retardant performance and ensure safety. Especially important in the electronic and electrical industry, it can be used in switch boxes, sockets, connectors, etc., to suppress fire and retardant, and delay the spread of fire. It can also be used in the production of fibers and films, showing its superiority without changing its true color. Halogen-free and environmentally friendly, does not produce harmful gases, and adapts to modern manufacturing needs. Suitable for industrial products that require high flame retardancy, it is widely adopted in transportation, communication equipment, household appliances and other fields.
Research & Development
Since science and technology are changing with each passing day, material innovation is the focus of industry, and flame retardant masterbatch came into being. Red phosphorus flame retardant masterbatch, especially red phosphorus as the main, into the polymer matrix, taking into account safety and environmental protection. After years of research and refinement, we have obtained red phosphorus with uniform particle size distribution and surface coating technology to prevent oxidative hydrolysis. Its application is more and more outstanding. The way of research and development is to be proficient in the ratio, test its thermal stability, dispersion and flame retardant efficiency, and gradually try to test its performance with high temperature and high pressure. Taste a variety of carriers, optimize the process flow, and constantly improve, and strive to balance the flame retardant and mechanical properties. Various measures have made this masterbatch shipped in electronics, wires and cables, automobiles and other fields, and have seen good results. In the future, the R & D team will only be innovation-based, urging more complete product performance to serve the needs of industrial upgrading.
Toxicity Research
Red phosphorus flame retardant masterbatch, which is mainly composed of red phosphorus, supplemented by a polymer carrier, is widely used in the flame retardant of plastics. However, red phosphorus is strong, and phosphine is easy to produce when wet, which is highly toxic. Therefore, to study its toxicity, the first test is the safety of the operating environment. According to experiments, red phosphorus flame retardant masterbatch at conventional processing temperatures, phosphine release is minimal, and does not harm the human body; if the temperature is suddenly high or poorly managed, phosphine escapes, inhalation can cause dizziness, cough, severe poisoning, or even fatal. Animal experiments have shown that oral ingestion of masterbatch makes it difficult to absorb and cause toxicity through the digestive tract in a short time, but high levels can still damage the liver and kidneys. Therefore, its storage and transportation should be strictly controlled, and the mouth and nose should be protected during operation, and the ventilation should be good to ensure the safety of workers. Although the red phosphorus flame retardant masterbatch is used to improve the safety of products, it is necessary to store it independently, fireproof and moisture-proof.
Future Prospects
Red phosphorus flame retardant masterbatch is very popular in today's material industry. Its performance is excellent and it is widely used. However, science and technology continue to innovate, and this product still has broad development space. In the future research and development, we should prioritize high efficiency and environmental protection, improve dispersion, enhance flame retardant effect, reduce the amount of addition, and take into account mechanical properties. It is expected that it will be combined with new polymer materials, integrated into smart manufacturing, and change the pattern of traditional applications. With increasingly stringent regulations and the sudden increase in demand for green environmental protection, the quality of masterbatch will be more perfect to help industrial upgrading. To be deeply integrated with new energy, electronics and automobiles, its future will be bright, and it will be a new peak of material technology.
Where to Buy Red Phosphorus Flame Retardant Masterbatch in China?
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As a leading Red Phosphorus Flame Retardant Masterbatch 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 application fields of Red Phosphorus Flame Retardant Masterbatch?
Red Phosphorus Flame Retardant Masterbatch, red phosphorus flame retardant masterbatch is also, with red phosphorus as the main material, supplemented by carrier polymers, refined by modern technology, its stability, flame retardant outstanding, widely used in many fields. In the past, all industries emphasized security and prevention, so flame retardant materials are increasingly needed by the world. Its main application fields are as follows:
First, electronic and electrical appliances. In today's world, electrical appliances are full. If televisions, air conditioners, refrigerators, washing machines and various electric equipment, their shells and internal components are mostly made of polymer plastics. If there is no fire prevention policy, it is easy to burn in case of fire, damage to property and life. Red phosphorus flame retardant masterbatch because of its good dispersion and efficient flame retardant function, implanted in plastic, can greatly reduce the risk of combustion, to ensure the safety of electricity.
Second, the automotive industry. Modern cars are increasingly lightweight, plastic instead of steel into the trend, but plastic flammable, safety hazards are difficult to remove. The use of red phosphorus flame retardant masterbatch for automotive interior trim, dashboard, cable coating and other parts can improve the overall fire protection level, prevent fires, protect passengers to safety.
Third, building materials. Plastics are made of sheets, pipes, insulation layers and other widely used in modern buildings. If there is no suitable flame retardant measures in case of fire, the fire will spread unhindered. The addition of red phosphorus flame retardant masterbatch to building materials can delay combustion, reduce smoke and poison, assist personnel in escaping, and help protect property.
Fourth, communication equipment. Communication base stations, switches, optical fiber boxes, etc., the core of the utensils is mostly made of high-performance plastics, but it must be highly flame retardant. Red phosphorus flame retardant masterbatch is here to help make electronic communication equipment lightweight and safe, and prevent disasters caused by electric sparks and overload.
Fifth, transportation and other fields. Such as high-speed rail, subway, ships, and aviation, its components are mostly made of polymer synthetic materials, and red phosphorus masterbatch is very useful. In addition, office supplies, home decoration, lighting shells, etc., are also used to increase their protection for daily life.
To sum up, red phosphorus flame retardant masterbatch is widely used in electronics, electrical appliances, automobiles, building materials, transportation, communications and many industries with its significant flame retardant effect, which is a good help for protecting human life and property. Wide application, indispensable, its status is increasingly evident in modern industry and people's livelihood.
First, electronic and electrical appliances. In today's world, electrical appliances are full. If televisions, air conditioners, refrigerators, washing machines and various electric equipment, their shells and internal components are mostly made of polymer plastics. If there is no fire prevention policy, it is easy to burn in case of fire, damage to property and life. Red phosphorus flame retardant masterbatch because of its good dispersion and efficient flame retardant function, implanted in plastic, can greatly reduce the risk of combustion, to ensure the safety of electricity.
Second, the automotive industry. Modern cars are increasingly lightweight, plastic instead of steel into the trend, but plastic flammable, safety hazards are difficult to remove. The use of red phosphorus flame retardant masterbatch for automotive interior trim, dashboard, cable coating and other parts can improve the overall fire protection level, prevent fires, protect passengers to safety.
Third, building materials. Plastics are made of sheets, pipes, insulation layers and other widely used in modern buildings. If there is no suitable flame retardant measures in case of fire, the fire will spread unhindered. The addition of red phosphorus flame retardant masterbatch to building materials can delay combustion, reduce smoke and poison, assist personnel in escaping, and help protect property.
Fourth, communication equipment. Communication base stations, switches, optical fiber boxes, etc., the core of the utensils is mostly made of high-performance plastics, but it must be highly flame retardant. Red phosphorus flame retardant masterbatch is here to help make electronic communication equipment lightweight and safe, and prevent disasters caused by electric sparks and overload.
Fifth, transportation and other fields. Such as high-speed rail, subway, ships, and aviation, its components are mostly made of polymer synthetic materials, and red phosphorus masterbatch is very useful. In addition, office supplies, home decoration, lighting shells, etc., are also used to increase their protection for daily life.
To sum up, red phosphorus flame retardant masterbatch is widely used in electronics, electrical appliances, automobiles, building materials, transportation, communications and many industries with its significant flame retardant effect, which is a good help for protecting human life and property. Wide application, indispensable, its status is increasingly evident in modern industry and people's livelihood.
What should the addition ratio of Red Phosphorus Flame Retardant Masterbatch be?
Red phosphorus flame retardant masterbatch is now widely used in chemical products to resist flames. The proportion of its addition depends on the nature of the raw materials and the flame retardant grade required by the product. The cover should not be general, nor should it be recklessly added. It is necessary to weigh the pros and cons so that the material properties and flame retardant effects are both.
If general-purpose plastics, such as polypropylene, polyethylene and their copolymers, want to reach the grade of UL94 V-2 and V-0, the red phosphorus flame retardant masterbatch is often added between 3% and 8%. If the plastic itself is non-flammable, it can be reduced as appropriate. However, if the material is flammable, or the thickness of the product is thin, it should be increased as appropriate until it meets the test standards, and the limit is not exceeded. There are also differences in the compatibility between the masterbatch carrier and the resin. If the compatibility is excellent, it will be evenly dispersed, the flame retardant effect will be highlighted, and it can be used with high efficiency in a low proportion. If the masterbatch carrier is different from the resin material, the dosage should be appropriately increased to meet the standard.
In addition, red phosphorus is naturally lively, and if it is added too much, it is easy to migrate, precipitate, or have toxic gas escape, which not only affects the appearance of the product, but also interferes with personal safety and environmental cleanliness. Therefore, it is not advisable to be greedy for too much and make mistakes. It is advisable to take the lowest effective dose as the highest during the test adjustment to achieve the ideal flame retardant performance. During this period, it is necessary to take into account the interaction of other additives, such as toughening, filling, and plasticizing, which all interfere with the
In short, the addition ratio of red phosphorus flame retardant masterbatch depends on the characteristics of the raw materials, the requirements of the parts, and the process conditions. It should be within the range of 3% to 8%. The amount should be corrected by the machine test, provided that the material has both flame retardant, physical, and chemical properties, and it is appropriate to use it for a long time.
If general-purpose plastics, such as polypropylene, polyethylene and their copolymers, want to reach the grade of UL94 V-2 and V-0, the red phosphorus flame retardant masterbatch is often added between 3% and 8%. If the plastic itself is non-flammable, it can be reduced as appropriate. However, if the material is flammable, or the thickness of the product is thin, it should be increased as appropriate until it meets the test standards, and the limit is not exceeded. There are also differences in the compatibility between the masterbatch carrier and the resin. If the compatibility is excellent, it will be evenly dispersed, the flame retardant effect will be highlighted, and it can be used with high efficiency in a low proportion. If the masterbatch carrier is different from the resin material, the dosage should be appropriately increased to meet the standard.
In addition, red phosphorus is naturally lively, and if it is added too much, it is easy to migrate, precipitate, or have toxic gas escape, which not only affects the appearance of the product, but also interferes with personal safety and environmental cleanliness. Therefore, it is not advisable to be greedy for too much and make mistakes. It is advisable to take the lowest effective dose as the highest during the test adjustment to achieve the ideal flame retardant performance. During this period, it is necessary to take into account the interaction of other additives, such as toughening, filling, and plasticizing, which all interfere with the
In short, the addition ratio of red phosphorus flame retardant masterbatch depends on the characteristics of the raw materials, the requirements of the parts, and the process conditions. It should be within the range of 3% to 8%. The amount should be corrected by the machine test, provided that the material has both flame retardant, physical, and chemical properties, and it is appropriate to use it for a long time.
How are Red Phosphorus Flame Retardant Masterbatches stored for stability and security?
Red phosphorus flame retardant masterbatch, sensitive and flammable, need to be carefully stored to ensure its stable properties and safe storage. The method should be described in detail as follows:
First of all, choose a cool and dry place to avoid sun exposure, high temperature and moisture. Cover red phosphorus is resistant to heat and humidity. If it is damp, it is prone to reaction, and if the temperature rises, it is easy to spontaneous combustion. Therefore, it must be placed in a well-ventilated storage. The temperature should be below 25 degrees, and the relative humidity should not exceed 50% to prevent moisture bonding. When sealing the package, avoid frequent contact with air and water vapor. Transportation and storage are all packaged in the original factory to enhance its airtightness and reduce oxygen invasion.
Within the storage environment, fireworks are strictly prohibited and all sources of ignition are eliminated. It is advisable to set up fire alarms and fire extinguishing equipment, and master dry powder fire extinguishing agents to deal with accidents. The floor of the warehouse should be smooth and clean, without the harm of water accumulation, to prevent the ground from regaining moisture and involving the storage. Keep away from strong oxidants, strong acids and alkalis and other chemicals, and cover red phosphorus in case of intense chemical reactions, or even fire.
The number of warehouses should be first in and first out to avoid long-term deterioration and abnormal performance. Measure the appearance of particles every day. If there is agglomeration, discoloration, or odor, separate them quickly, and do not mix them into genuine products for use. Wear protective equipment, such as gloves and masks, during operation to avoid direct contact with the skin and respiratory tract. After use, seal it in time and do not expose it for a long time.
The storage of red phosphorus flame retardant masterbatch is meticulous in law and strict in code. If you follow the way, you will be able to keep it safe and not damaged for a long time. Keeping the rules of safety and protecting the environment is the main way for long-term storage of red phosphorus masterbatch.
First of all, choose a cool and dry place to avoid sun exposure, high temperature and moisture. Cover red phosphorus is resistant to heat and humidity. If it is damp, it is prone to reaction, and if the temperature rises, it is easy to spontaneous combustion. Therefore, it must be placed in a well-ventilated storage. The temperature should be below 25 degrees, and the relative humidity should not exceed 50% to prevent moisture bonding. When sealing the package, avoid frequent contact with air and water vapor. Transportation and storage are all packaged in the original factory to enhance its airtightness and reduce oxygen invasion.
Within the storage environment, fireworks are strictly prohibited and all sources of ignition are eliminated. It is advisable to set up fire alarms and fire extinguishing equipment, and master dry powder fire extinguishing agents to deal with accidents. The floor of the warehouse should be smooth and clean, without the harm of water accumulation, to prevent the ground from regaining moisture and involving the storage. Keep away from strong oxidants, strong acids and alkalis and other chemicals, and cover red phosphorus in case of intense chemical reactions, or even fire.
The number of warehouses should be first in and first out to avoid long-term deterioration and abnormal performance. Measure the appearance of particles every day. If there is agglomeration, discoloration, or odor, separate them quickly, and do not mix them into genuine products for use. Wear protective equipment, such as gloves and masks, during operation to avoid direct contact with the skin and respiratory tract. After use, seal it in time and do not expose it for a long time.
The storage of red phosphorus flame retardant masterbatch is meticulous in law and strict in code. If you follow the way, you will be able to keep it safe and not damaged for a long time. Keeping the rules of safety and protecting the environment is the main way for long-term storage of red phosphorus masterbatch.
How does Red Phosphorus Flame Retardant Masterbatch affect the physical properties of products?
Red phosphorus flame retardant masterbatch is a commonly used additive in modern polymer materials, which is specially designed to improve the flame retardant performance of products. However, it also has a certain impact on the physical properties of products. Red phosphorus has strong particulate properties and active chemical properties. However, with appropriate surface treatment and compatibility technology, it can be melted into the resin and combined with the polymer matrix as a whole. However, its performance changes are intricate and need to be described separately.
First, it may weaken the mechanical properties. If the red phosphorus masterbatch is not evenly dispersed, it will cause poor interface bonding, which is easy to be the source of stress concentration, and the tensile and bending strength of the product will be slightly reduced. If the dispersion and particle size are strictly controlled and the coating technology is used properly, this disadvantage can be slightly alleviated. However, the miscibility and density differences of the components may cause the impact toughness of the product to be inferior to that of the pure resin.
Second, the thermal properties of the product are more beneficial. Red phosphorus can effectively inhibit thermal cracking, delay resin decomposition, and give the product excellent flame retardancy. More than high temperature, it can form a porous carbon layer, block heat and gas escape, and increase the heat resistance temperature of the product.
Third, the distribution of red phosphorus is uniform. If the particle size is too large or the dispersion is insufficient, it is easy to cause rough surface, impure hue, and damage to the light transmittance and appearance of the product. The surface is specially coated, which can slow down its precipitation and oxidation defects, which is beneficial to the long-term storage and use safety of the product.
Fourth, the red phosphorus masterbatch often has a tendency to absorb moisture and oxidize. Excessive addition will easily cause the electrical properties of the material to decline. In electrical and electronic materials, excessive addition may cause the dielectric constant to rise and the insulation properties to decline. These disadvantages must be weighed in design.
In summary, the flame retardant properties of red phosphorus masterbatch in polymer products are significantly improved, but the physical properties such as mechanics, heat and electricity may be slightly damaged. However, the method of fine grinding dispersion, coating and compatibility can have great advantages and disadvantages. Adjusting the amount of addition and selecting suitable substrates can achieve both advantages.
First, it may weaken the mechanical properties. If the red phosphorus masterbatch is not evenly dispersed, it will cause poor interface bonding, which is easy to be the source of stress concentration, and the tensile and bending strength of the product will be slightly reduced. If the dispersion and particle size are strictly controlled and the coating technology is used properly, this disadvantage can be slightly alleviated. However, the miscibility and density differences of the components may cause the impact toughness of the product to be inferior to that of the pure resin.
Second, the thermal properties of the product are more beneficial. Red phosphorus can effectively inhibit thermal cracking, delay resin decomposition, and give the product excellent flame retardancy. More than high temperature, it can form a porous carbon layer, block heat and gas escape, and increase the heat resistance temperature of the product.
Third, the distribution of red phosphorus is uniform. If the particle size is too large or the dispersion is insufficient, it is easy to cause rough surface, impure hue, and damage to the light transmittance and appearance of the product. The surface is specially coated, which can slow down its precipitation and oxidation defects, which is beneficial to the long-term storage and use safety of the product.
Fourth, the red phosphorus masterbatch often has a tendency to absorb moisture and oxidize. Excessive addition will easily cause the electrical properties of the material to decline. In electrical and electronic materials, excessive addition may cause the dielectric constant to rise and the insulation properties to decline. These disadvantages must be weighed in design.
In summary, the flame retardant properties of red phosphorus masterbatch in polymer products are significantly improved, but the physical properties such as mechanics, heat and electricity may be slightly damaged. However, the method of fine grinding dispersion, coating and compatibility can have great advantages and disadvantages. Adjusting the amount of addition and selecting suitable substrates can achieve both advantages.
What should be paid attention to during the processing of Red Phosphorus Flame Retardant Masterbatch?
Red Phosphorus Flame Retardant Masterbatch is made with red phosphorus as the main material, supplemented by carriers and additives, and is ingeniously developed for the need of fire prevention of polymer materials. Its processing process must be careful to prevent it from happening. The nature of red phosphorus is lively, and it is prone to mutation in case of heat and oxygen, which hinders product performance and is also prone to safety risks. When processing, it is necessary to clearly review all the essentials, and it should not be ignored.
The first priority is temperature control. Red phosphorus is prone to sublimation in case of high temperature, and even spontaneous combustion, damaging equipment and endangering personal life. During operation, the temperature should be constantly controlled below the safety limit, and should not rise or fall suddenly. In processes such as extrusion, injection molding, etc., the barrel and mold must be preset to adjust the appropriate temperature to ensure that the red phosphorus is evenly dispersed in the substrate, and should not be agglomerated to prevent local overheating.
Ventilation is not allowed. Red phosphorus decomposes at high temperature, or smoke escapes, its smell is pungent, and it will hurt people for a long time. Therefore, the processing workshop must be equipped with a good exhaust device to ensure indoor air circulation. Operators should wear protective masks and gloves to prevent harmful smoke and phosphorus dust from invading, and protect themselves.
Storage should also be prudent. The master batch of red phosphorus should be stored in a dry and ventilated room, away from open flames, hot topics and strong oxidizing substances. In case of damage or scattering, it must be cleaned up in time, and it should not be left in the air for a long time. It is only necessary to prevent the masterbatch from getting damp, which is easy to cause agglomeration and performance degradation.
Mixing and dispersing should be uniform. When mixed with the main material, appropriate mixing equipment should be selected to make the fire-proof ingredients distributed integrally and have uniform performance. Do not be too hasty, so that the friction heats up, stimulates the activity of red phosphorus, and even reacts. When feeding on the machine, the proportion should be accurately weighed according to the formula, and one point will be lost, or the fire-proof performance will not be ideal.
If there are compatible materials, such as antioxidants, stabilizers, and lubricants, the selection of materials should be pure and compatible, so as to avoid the formation of by-products and hinder the safety of processing Every time the pilot runs, it must be tested in small batches to confirm the safety of the process before large-scale operation.
To sum up, the processing of Red Phosphorus Flame Retardant Masterbatch requires careful review, temperature control, ventilation, storage, homogenization, and compatibility of auxiliary materials cannot be ignored. But if you are careful everywhere, the process will be successful, and the product will be used after use, and you can be foolproof.
The first priority is temperature control. Red phosphorus is prone to sublimation in case of high temperature, and even spontaneous combustion, damaging equipment and endangering personal life. During operation, the temperature should be constantly controlled below the safety limit, and should not rise or fall suddenly. In processes such as extrusion, injection molding, etc., the barrel and mold must be preset to adjust the appropriate temperature to ensure that the red phosphorus is evenly dispersed in the substrate, and should not be agglomerated to prevent local overheating.
Ventilation is not allowed. Red phosphorus decomposes at high temperature, or smoke escapes, its smell is pungent, and it will hurt people for a long time. Therefore, the processing workshop must be equipped with a good exhaust device to ensure indoor air circulation. Operators should wear protective masks and gloves to prevent harmful smoke and phosphorus dust from invading, and protect themselves.
Storage should also be prudent. The master batch of red phosphorus should be stored in a dry and ventilated room, away from open flames, hot topics and strong oxidizing substances. In case of damage or scattering, it must be cleaned up in time, and it should not be left in the air for a long time. It is only necessary to prevent the masterbatch from getting damp, which is easy to cause agglomeration and performance degradation.
Mixing and dispersing should be uniform. When mixed with the main material, appropriate mixing equipment should be selected to make the fire-proof ingredients distributed integrally and have uniform performance. Do not be too hasty, so that the friction heats up, stimulates the activity of red phosphorus, and even reacts. When feeding on the machine, the proportion should be accurately weighed according to the formula, and one point will be lost, or the fire-proof performance will not be ideal.
If there are compatible materials, such as antioxidants, stabilizers, and lubricants, the selection of materials should be pure and compatible, so as to avoid the formation of by-products and hinder the safety of processing Every time the pilot runs, it must be tested in small batches to confirm the safety of the process before large-scale operation.
To sum up, the processing of Red Phosphorus Flame Retardant Masterbatch requires careful review, temperature control, ventilation, storage, homogenization, and compatibility of auxiliary materials cannot be ignored. But if you are careful everywhere, the process will be successful, and the product will be used after use, and you can be foolproof.
