Epoxy Coated Ammonium Polyphosphate
| HS Code | 341828 |
| Chemical Formula | ((NH4PO3)n) |
| Appearance | white powder |
| Density | approx. 2.3 - 2.4 g/cm³ |
| Solubility In Water | low solubility |
| Thermal Stability | high, can withstand high temperatures |
| Particle Size | usually fine - in the micron range |
| Ph Value | near - neutral |
| Flame Retardant Efficiency | high |
| Hygroscopicity | relatively low |
| Chemical Reactivity | stable under normal conditions |
| Viscosity When In Epoxy Coated Form | adjustable based on epoxy formulation |
| Melting Point | decomposes rather than melts |
As an accredited Epoxy Coated Ammonium Polyphosphate factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 1 kg of Epoxy Coated Ammonium Polyphosphate in a sealed, moisture - resistant bag. |
| Storage | Epoxy - coated ammonium polyphosphate should be stored in a cool, dry place away from direct sunlight and heat sources. Keep it in a well - ventilated area to prevent the build - up of moisture. Store in a tightly - sealed container to avoid contact with air, which could potentially lead to degradation. Ensure storage areas are free from ignition sources as it may be flammable under certain conditions. |
| Shipping | Epoxy - coated ammonium polyphosphate is shipped in well - sealed containers to prevent moisture ingress. It's transported under stable conditions, avoiding exposure to heat sources and incompatible substances to ensure safe and intact delivery. |
Competitive Epoxy Coated Ammonium Polyphosphate 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
Historical Development
Since the discovery of ammonium phosphate, the world has suffered from its limited performance, making it difficult to widely apply it to the field of flame retardancy. In the 20th century, chemists devoted themselves to research and create intumescent flame retardants, but they are prone to lose their effectiveness in hot and humid environments. Yuan has a coating technology that has been applied in various applications, and an epoxy layer is applied to ammonium phosphate to overcome the disadvantages of its moisture absorption. Wing is coated with epoxy, and its performance has been greatly improved. It is flame retardant, moisture-proof, and durable. The chemical industry has therefore promoted epoxy-coated ammonium phosphate, and its preparation process has been improved and improved. Today's epoxy-coated polymer ammonium phosphate salts have been used in plastics, coatings, building materials and other fields, promoting their flame retardant power and increasing use, which is a great view of change in the field of flame retardant materials.
Product Overview
Epoxy Coated Ammonium Polyphosphate is based on amino polyphosphate and coated with epoxy resin film to make a new flame retardant and high-efficiency material. Its quality is white and clean, the particle size is uniform, the dissolution is slow, and the water resistance is very good. Epoxy coating inhibits moisture absorption and agglomeration, so it is easy to disperse in resins and various polymer materials. In case of fire, phosphorus is released to form acidic orthophosphoric acid, and the surface of the polymers is carbonized, which isolates oxygen and curbs the spread of fire. Widely used in coatings, plastics, rubber and wood products, it is relied on by construction, electronics, transportation and other fields. It is halogen-free and environmentally friendly, does not damage the properties of the substrate, and can improve the weather resistance and overall flame retardant level of the product. It is the best choice for today's high-
Physical & Chemical Properties
Epoxy Coated Ammonium Polyphosphate is made of ammonium polyphosphate coated with epoxy resin. Its color is mostly white, the shape is fine, and the tentacles are smooth. It is extremely stable, insoluble in water and ethanol, and slowly decomposes at high temperature, releasing ammonia and polyphosphoric acid. Its density is about one to two grams per cubic centimeter, moisture and weather resistance, and good chemical inertness. Epoxy coating gives it excellent dispersion, prevents moisture absorption and agglomeration, and enhances its compatibility with organic polymer materials. When hot, it can release phosphorus to form a porous carbonized film, and the synergy of the epoxy layer enhances its flame retardant effect. Multi-surface corrosion resistance in acid and alkali, rare reaction, suitable for the addition of various polymer systems. The smell is light, non-toxic and harmless, stored in a dry and cool place, the character is not easy to change.
Technical Specifications & Labeling
Epoxy Coated Ammonium Polyphosphate is based on ammonium aminopolyphosphate and coated with epoxy resin to increase its water resistance and dispersion properties. The particles are white, with a conventional particle size between 10-20 microns and a specific gravity of about 1.8-1. The phosphorus content is as high as 28-32%, the nitrogen content is 10-12%; the ignition point is about 240 degrees Celsius, and the finite oxygen index gain is significant. It is widely suitable for flame retardant coatings and high-performance composites. It dissolves less in water, has little hygroscopicity, and has excellent thermal stability. It is coated with epoxy and has better fluidity. It is dispersed in the polymer system without agglomeration, and can also improve the performance of the product required for weather resistance and processing. The packaging is mainly in 25kg plastic woven bags, and the storage must be dry and sealed to prevent moisture from invading. The place of origin, batch number and production date should be marked in detail.
Preparation Method
Ammonium phosphate is taken as raw material, heated in a high-temperature reactor in turn, slowly heated to a moderate temperature, and reacted with ammonia to form ammonium polyphosphate. A catalyst is added in the meantime to promote the synthesis. The reaction system needs to strictly control the moisture and temperature to obtain a high polymer, which is white and odorless and has uniform particle size. Following the epoxy resin as the coating material, the ammonium polyphosphate is uniformly suspended in the organic solvent by means of a dispersant. Stirring at a constant temperature makes the epoxy resin attach to its surface and gradually form a dense thin layer. At the end of the introduction of a curing agent, the catalytic resin is rapidly crosslinked and cured, and the shape of the layer is firm and moisture-proof. The epoxy-coated ammonium polyphosphate finished product is obtained. This method is convenient for controlling the particle size, promoting the improvement of flame retardancy and weather resistance. The process is refined, and the product is widely
Chemical Reactions & Modifications
The epoxy-coated ammonium polyphosphate is a unique product in the field of modern flame retardant research. Its production is first based on ammonium polyphosphate, pretreated to remove impurities, and then uniformly coated with epoxy resin solution. During the coating process, the terminal groups of epoxy molecules are combined with hydroxyl groups, amino groups or other active groups on the surface of ammonium polyphosphate to form a dense and firm coating film. This chemical reaction not only enhances the compatibility of particles with organic substrates, but also enhances their water resistance and oleophobic properties, and significantly inhibits the self-decomposition of ammonium polyphosphate at high temperatures and the release of phosphorus gas. After modification, the epoxy coating layer is like a armor, slowing down its dissolution in water and agglomeration in moisture, and has the advantages of good dispersion and convenient processing. Therefore, in the composite material, both the flame retardant nature can be maintained and the life of the product can be extended. This is a clear example of chemical improvement of performance.
Synonyms & Product Names
Epoxy-coated ammonium polyphosphate is an essential product of flame retardant materials. Its synonymous name, or epoxy resin-coated ammonium polyphosphate, or epoxy-coated ammonium polyphosphate, is also abbreviated by EAPP. There are many trade names in the market, such as Exolit AP 435, APP 241, FRAPP E, etc., all refer to such substances. There may be a trade name with a crown, followed by a model to distinguish, and it is also called ring protective shell APP, weather-resistant ammonium polyphosphate. Because its outer coating is epoxy, it enhances water resistance and weather resistance, so it is different from ordinary ammonium polyphosphate. Siwu is also known as epoxy-coated halogen-free flame retardant, or epoxy moisture-proof ammonium polyphosphate. Although the names are different, their uses are also in the flame retardancy of plastic coatings and composites.
Safety & Operational Standards
Epoxy Coated Ammonium Polyphosphate is a Seiko in this world, adding materials for fire protection, with outstanding performance. However, its use must be safety first, follow the specifications carefully, and do not neglect. Store this product in a dry and ventilated place to prevent moisture from invading, away from fire heat sources, and do not coexist with acid-containing and reducing substances in the same room. Between use, wear special protective equipment, such as gloves, goggles, and masks, so as not to accidentally touch or inhale human skin, vision, and respiratory tract. Before using it, seal it immediately, do not expose it, and avoid escaping dust. If it is accidentally poured, it is advisable to pick it up thoroughly with clean utensils, wipe off the residual stains, and do not rinse it with water to prevent chemical reactions. During handling, handle it with care and place it safely in a closed container. Do not mix with sundries to avoid accidents.
In case of fire, it is strictly forbidden to put it out with water, and use dry powder, carbon dioxide and other fire extinguishing equipment to rescue. In the operating place, good ventilation equipment must be set up to prevent dust accumulation from persisting. Wash your hands after work. If your clothes are dyed, change them immediately. Wash your clothes with clean water. If you are on the scene for a long time, you must have regular physical examinations to prevent fatigue and illness. Disposal should be handled in accordance with regulations. Do not dump them arbitrarily, so as not to pollute the soil and water sources and endanger the environment. If it enters your eyes or mouth by mistake, rinse with clean water urgently and seek medical attention as soon as possible. This product is not edible and is strictly prohibited from being eaten. The disposal process should be supervised by a special person, clearly responsible in your heart, and strictly abide by the system. Anyone who cherishes things like people in storage, transshipment, and application must be responsible.
From this point of view, those who use Epoxy Coated Ammonium Polyphosphate can abide by safety regulations, so they can not only protect their own safety, but also make good use of their talents. However, if you ignore the small details, or cause disasters, you will suffer endlessly. Caution is the top priority, awe is in the heart, and the beginning and end are good, and there are few worries.
In case of fire, it is strictly forbidden to put it out with water, and use dry powder, carbon dioxide and other fire extinguishing equipment to rescue. In the operating place, good ventilation equipment must be set up to prevent dust accumulation from persisting. Wash your hands after work. If your clothes are dyed, change them immediately. Wash your clothes with clean water. If you are on the scene for a long time, you must have regular physical examinations to prevent fatigue and illness. Disposal should be handled in accordance with regulations. Do not dump them arbitrarily, so as not to pollute the soil and water sources and endanger the environment. If it enters your eyes or mouth by mistake, rinse with clean water urgently and seek medical attention as soon as possible. This product is not edible and is strictly prohibited from being eaten. The disposal process should be supervised by a special person, clearly responsible in your heart, and strictly abide by the system. Anyone who cherishes things like people in storage, transshipment, and application must be responsible.
From this point of view, those who use Epoxy Coated Ammonium Polyphosphate can abide by safety regulations, so they can not only protect their own safety, but also make good use of their talents. However, if you ignore the small details, or cause disasters, you will suffer endlessly. Caution is the top priority, awe is in the heart, and the beginning and end are good, and there are few worries.
Application Area
Epoxy Coated Ammonium Polyphosphate is also a fireproof material in this world. It is coated with epoxy resin ammonium phosphate, which has better performance than ordinary materials and is widely used in many fields. In construction, it is used as a fireproof coating to ensure the safety of beams and columns in case of fire; electronic equipment is added as a flame retardant to avoid self-immolation of equipment in danger; transportation tools, such as ships and railway vehicles, are coated inside and outside, which can resist fire and delay damage. Furniture wood, add this thing to ensure health, and it will not burn out in case of disaster. And because of its moisture resistance and impermeability, it is especially suitable for underground works and humid places. However, it is halogen-free, non-toxic, non-volatile, and beneficial to environmental protection without harming humans and animals. In summary, where fire and flame retardant are needed, Epoxy Coated Ammonium Polyphosphate can be seen, which is indispensable for today's safe and prosperous life.
Research & Development
Epoxy Coated Ammonium Polyphosphate is a leader in new materials in the chemical industry. Its bulk ammonium phosphate is polymerized, has stable properties, and is insoluble in water. It is an important material for environmental protection and flame retardancy. After being coated with epoxy resin, the particle surface is dense, moisture-proof and anti-knot are significant, overcoming the disadvantages of bare crystal moisture absorption and loss. With the progress of the process, scientists have studied its ratio and reaction conditions, refined optimization, uniform particle size and good dispersion. Taste many epoxy systems, and test their advantages and disadvantages, not only to maintain the flame retardant effect, but also to increase the firmness of the bond. Compatible with a variety of substrates, it is widely suitable for coatings, plastics, rubber and electronics. In recent years, the preparation technology is more refined, and the concept of green environmental protection runs through it. Chinese and foreign scholars have worked together to The method of Epoxy coating makes ammonium phosphate polymerization to the extreme, and its research and development is a model for the progress of polymer flame retardant materials.
Toxicity Research
Epoxy coated ammonium phosphate is a new type of flame retardant material, which is widely used in polymer products. However, its toxicity is unknown, and it needs to be studied in detail. Rats were used as experiments, and different dose groups were set up to observe the signs of acute poisoning within 24 hours. The experimental results showed that there were no obvious adverse reactions in the low-dose group, and occasional burnout and loss of appetite in the high-dose group. There was no death or organ damage. After blood and organ pathological examination, no abnormal changes were found. Gas chromatography detected that the coating layer prevented the escape of free ammonia and effectively reduced irritation. After long-term exposure, the test animals grew well. Overall, Epoxy coated ammonium phosphate has low toxicity and is relatively safe under short-term and medium-dose use. However, high doses and human use still need to be further evaluated to ensure safety.
Future Prospects
Epoxy Coated Ammonium Polyphosphate is an important part of modern flame retardant materials. It is coated with epoxy resin and wraps the core of ammonium polyphosphate, which greatly increases its water resistance, and its bonding is increasingly obvious. It overcomes the disadvantages of traditional ammonium polyphosphate that is easy to absorb moisture and precipitate, and is new in the application field. Looking at today's fireproof coatings, plastics, textiles, wood and many other industries, they all rely on their superiority and become more perfect. Later scientific research may promote the coating technology, resulting in finer particle size, more uniform dispersion, and higher temperature bearing, which not only improves the flame retardant function, but also broadens its use boundaries. In the future, if it can be used in combination with bio-based materials and new nano-composites, it may achieve green environmental protection, low-carbon sustainability. Global environmental protection requirements are becoming increasingly stringent, and Epoxy Coated Ammonium Polyphosphate will surely take advantage of the trend to occupy an important position in the future fire retardant way, lead the industry trend, and widely apply its benefits to the society where people live and work in peace and contentment.
Where to Buy Epoxy Coated Ammonium Polyphosphate in China?
As a trusted Epoxy Coated Ammonium Polyphosphate 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.
As a leading Epoxy Coated Ammonium Polyphosphate 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 Epoxy Coated Ammonium Polyphosphate?
Epoxy Coated Ammonium Polyphosphate, which is called epoxy-coated ammonium polyphosphate in Chinese, is actually an essential fireproof agent for modern materials. Its preparation method is to prepare ammonium polyphosphate particles according to the previous method, followed by epoxy resin coating. This coating can greatly increase its water resistance, significantly improve its dispersion, and its thermal stability is better than that of pure ammonium polyphosphate. Therefore, it is widely used in many fire protection fields, and its main applications can be divided into the following ends.
1. For fireproof coatings. Epoxy-coated ammonium polyphosphate is often used for fireproof coatings in steel structures and other projects because of its excellent weather resistance and flame retardant efficiency. Coated on the surface of steel beams and bridge columns in buildings or factories, it can undergo expansion and carbonization reaction under high temperature flames to form a dense carbon layer, effectively isolate heat conduction, and slow down the damage of the substrate. And prolong the overall fire resistance limit of the structure to ensure the safety of life and property.
Second, it is used for flame retardant of plastics and rubber. Ammonium polyphosphate is an inorganic intumescent flame retardant. When conventionally blended with resins, it is inevitable that water will resolve out, resulting in reduced performance. Today, after being coated with epoxy resin, it greatly reduces the harm of water-leaching precipitation in the matrix. Therefore, it is widely promoted as a flame retardant additive in polymer materials such as polypropylene, polyethylene, ABS and polyurethane, giving the material good flame retardant and low smoke environmental protection properties. This move has also benefited many fields such as electronic devices, household appliances, and automotive interiors.
Third, it is used for wood, fireproof fibers, etc. The coated ammonium polyphosphate can be effectively combined with the cellulose of wood. After corresponding treatment, it can significantly improve its flame resistance and reduce the risk of fire spread. In the fire protection technology of transportation, passenger transportation, and public decoration materials, epoxy-coated ammonium polyphosphate is particularly irreplaceable.
The rest are still used in papermaking, coating, adhesive, composite board, and many other fields. With its advantages of low toxicity, environmental friendliness, and high efficiency, it will be widely used in the future. Due to the above, epoxy-coated ammonium polyphosphate can be described as the leader of environmentally friendly flame retardant materials in the new century.
1. For fireproof coatings. Epoxy-coated ammonium polyphosphate is often used for fireproof coatings in steel structures and other projects because of its excellent weather resistance and flame retardant efficiency. Coated on the surface of steel beams and bridge columns in buildings or factories, it can undergo expansion and carbonization reaction under high temperature flames to form a dense carbon layer, effectively isolate heat conduction, and slow down the damage of the substrate. And prolong the overall fire resistance limit of the structure to ensure the safety of life and property.
Second, it is used for flame retardant of plastics and rubber. Ammonium polyphosphate is an inorganic intumescent flame retardant. When conventionally blended with resins, it is inevitable that water will resolve out, resulting in reduced performance. Today, after being coated with epoxy resin, it greatly reduces the harm of water-leaching precipitation in the matrix. Therefore, it is widely promoted as a flame retardant additive in polymer materials such as polypropylene, polyethylene, ABS and polyurethane, giving the material good flame retardant and low smoke environmental protection properties. This move has also benefited many fields such as electronic devices, household appliances, and automotive interiors.
Third, it is used for wood, fireproof fibers, etc. The coated ammonium polyphosphate can be effectively combined with the cellulose of wood. After corresponding treatment, it can significantly improve its flame resistance and reduce the risk of fire spread. In the fire protection technology of transportation, passenger transportation, and public decoration materials, epoxy-coated ammonium polyphosphate is particularly irreplaceable.
The rest are still used in papermaking, coating, adhesive, composite board, and many other fields. With its advantages of low toxicity, environmental friendliness, and high efficiency, it will be widely used in the future. Due to the above, epoxy-coated ammonium polyphosphate can be described as the leader of environmentally friendly flame retardant materials in the new century.
How is the water resistance of Epoxy Coated Ammonium Polyphosphate?
Epoxy Coated Ammonium Polyphosphate, which is an epoxy resin-coated ammonium phosphate, is a commonly used material in the flame retardant industry. Its performance, especially water resistance, has attracted the attention of many researchers. Uncoated ammonium phosphate is easy to precipitate in contact with water, and it is difficult to maintain it in the substrate for a long time, resulting in unsatisfactory durability and flame retardant effects. Now coated with epoxy resin, the particles are covered with a dense film layer, which can significantly block the infiltration of water and inhibit the contact and dissolution of the inner ammonium phosphate with water, so the water resistance is far better than that of the main body.
Epoxy resin is tough, has a dense molecular structure, is acid and alkali resistant, and has a strong affinity with the substrate. After it is coated, the surface of ammonium phosphate is smooth and void-free, and it is difficult for moisture to invade it. The experiment measured that Epoxy Coated Ammonium Polyphosphate was immersed in water for many days, the precipitation rate was much lower than that of the uncoated one, and the flame retardant components could be stored for a long time without attenuation of mechanical properties. Therefore, in practical applications, regardless of exposure to humid environment or acid rain erosion, it can maintain excellent flame retardant effect.
And the epoxy resin itself is resistant to aging, and can survive stably under harsh conditions such as high temperature and high humidity. The coated ammonium phosphate can decompose phosphate ions at high temperature in case of fire, forming a protective carbon layer, blocking oxygen and inhibiting combustion. The coating layer does not hinder the development of the flame retardant mechanism of ammonium phosphate, but increases its durability and scope of application. In this way, architectural coatings, plastics, textiles and other fields have greatly broadened the application prospects of ammonium phosphate due to the blessing of epoxy coating.
In short, Epoxy Coated Ammonium Polyphosphate is far better than the uncoated state due to its dense coating and outstanding water corrosion resistance. Adapt to complex and changeable environments to ensure the durability of its flame retardant properties. In terms of extraction, modern flame retardant technology is changing with each passing day, and surface coating is a key way to improve the durability of phosphorus-based flame retardant materials. If you want the long-term use and safety of materials, Epoxy Coated Ammonium Polyphosphate is the best choice.
Epoxy resin is tough, has a dense molecular structure, is acid and alkali resistant, and has a strong affinity with the substrate. After it is coated, the surface of ammonium phosphate is smooth and void-free, and it is difficult for moisture to invade it. The experiment measured that Epoxy Coated Ammonium Polyphosphate was immersed in water for many days, the precipitation rate was much lower than that of the uncoated one, and the flame retardant components could be stored for a long time without attenuation of mechanical properties. Therefore, in practical applications, regardless of exposure to humid environment or acid rain erosion, it can maintain excellent flame retardant effect.
And the epoxy resin itself is resistant to aging, and can survive stably under harsh conditions such as high temperature and high humidity. The coated ammonium phosphate can decompose phosphate ions at high temperature in case of fire, forming a protective carbon layer, blocking oxygen and inhibiting combustion. The coating layer does not hinder the development of the flame retardant mechanism of ammonium phosphate, but increases its durability and scope of application. In this way, architectural coatings, plastics, textiles and other fields have greatly broadened the application prospects of ammonium phosphate due to the blessing of epoxy coating.
In short, Epoxy Coated Ammonium Polyphosphate is far better than the uncoated state due to its dense coating and outstanding water corrosion resistance. Adapt to complex and changeable environments to ensure the durability of its flame retardant properties. In terms of extraction, modern flame retardant technology is changing with each passing day, and surface coating is a key way to improve the durability of phosphorus-based flame retardant materials. If you want the long-term use and safety of materials, Epoxy Coated Ammonium Polyphosphate is the best choice.
What are the advantages of Epoxy Coated Ammonium Polyphosphate over uncoated products?
Epoxy Coated Ammonium Polyphosphate, that is, oxygen-coated polyphosphoric acid, is an uncoated product with multiple layers. Uncoated polyphosphoric acid is prone to water absorption and deliquescence every time it encounters, causing its performance to deteriorate. The mixing of lipids and other substrates is also easy to shift, resulting in holes, and the shadow is dense and firm. Oxygen-coated, with high lipid content, external resistance to water vapor intrusion, so it can also last for a long time in a humid place.
The uncoated type has slightly poor lipid compatibility. In the dispersion, due to uneven interfaces, the surface of the material is rough. Oxygen-coated grease can greatly improve the compatibility, and it is easy to disperse in both non-conductive substrates, so a smooth and beautiful outer film can be obtained. And its coating can also reduce the flame retardancy of polyphosphoric acid and other flame retardants, helping to reduce adverse side effects, and ensuring flame retardant efficiency.
Oxygen-coated, it can still decompose by itself in case of water, releasing phosphorus, ammonia and other substances of polyphosphoric acid, which is flame retardant. However, in the normal environment, it is wrapped and protected, which is not determined by itself, nor does it affect the mutual drying of other ingredients. It is used for applications, such as water, building materials, sticky materials, plastics and other fields, especially in the field. Oxygen coating can improve the processing convenience of the product, free from moisture intrusion and surface whitening, which is beyond the reach of the uncoated product.
Its large size, Epoxy Coated Ammonium Polyphosphate is known for its excellent moisture resistance, high quality, dispersion and long-lasting flame retardant performance, and is especially important for uncoated types. In the field of advanced material research and high-performance flame retardant requirements, it is highly regarded.
The uncoated type has slightly poor lipid compatibility. In the dispersion, due to uneven interfaces, the surface of the material is rough. Oxygen-coated grease can greatly improve the compatibility, and it is easy to disperse in both non-conductive substrates, so a smooth and beautiful outer film can be obtained. And its coating can also reduce the flame retardancy of polyphosphoric acid and other flame retardants, helping to reduce adverse side effects, and ensuring flame retardant efficiency.
Oxygen-coated, it can still decompose by itself in case of water, releasing phosphorus, ammonia and other substances of polyphosphoric acid, which is flame retardant. However, in the normal environment, it is wrapped and protected, which is not determined by itself, nor does it affect the mutual drying of other ingredients. It is used for applications, such as water, building materials, sticky materials, plastics and other fields, especially in the field. Oxygen coating can improve the processing convenience of the product, free from moisture intrusion and surface whitening, which is beyond the reach of the uncoated product.
Its large size, Epoxy Coated Ammonium Polyphosphate is known for its excellent moisture resistance, high quality, dispersion and long-lasting flame retardant performance, and is especially important for uncoated types. In the field of advanced material research and high-performance flame retardant requirements, it is highly regarded.
What is the amount of Epoxy Coated Ammonium Polyphosphate?
Epoxy Coated Ammonium Polyphosphate, Chinese name epoxy coated ammonium polyphosphate, is widely used in flame retardant modification of polymer materials. Many fields such as synthetic plastics, coatings and fibers rely on this material to improve fire resistance. However, the amount of its dosage depends on the nature of the system. Taking epoxy resin as an example, if it is mainly to enhance flame retardancy, it is usually recommended to add 15% to 25% by mass. If it is matched with synergistic flame retardants such as antimony trioxide, surfactants, etc., the amount of addition can be appropriately reduced. But it should not be reduced to less than 10%, for fear that the flame retardant function will not be ideal.
When compatible, the mechanical properties of the material should also be taken into account. Excessive addition, although the flame retardant is excellent, the brittleness of the material is easy to increase, and the mechanical strength may be reduced. Moderate addition makes the resin both flame retardant and maintain the original toughness and strength, which is a trade-off. In engineering practice, small sample tests are often carried out first, and the ratio is gradually adjusted according to the flame retardant grade requirements of UL-94, LOI, etc., so as to determine the optimal addition amount.
In addition, epoxy-coated ammonium polyphosphate itself has the characteristics of high thermal stability and hydrolysis resistance, which can be appropriately reduced compared with ordinary ammonium polyphosphate systems. It replaces traditional flame retardants for high-demand electronic components and building materials, which not only ensures flame retardancy, but also avoids precipitation or short service life. With new synergistic materials such as nanomaterials and carbon source additives, the minimum addition amount can be as low as about 12%, while still reaching the first-class flame retardant standard.
However, the compatibility of different epoxy systems varies slightly, and the specific dosage depends on the resin model, processing technology, and desired flame retardant standards. To sum up, epoxy-coated ammonium polyphosphate in epoxy resin materials is generally recommended to add 15% -25%. If there is a special process cooperation, the feasible range is between 10% -30%. The actual performance test can be finalized.
When compatible, the mechanical properties of the material should also be taken into account. Excessive addition, although the flame retardant is excellent, the brittleness of the material is easy to increase, and the mechanical strength may be reduced. Moderate addition makes the resin both flame retardant and maintain the original toughness and strength, which is a trade-off. In engineering practice, small sample tests are often carried out first, and the ratio is gradually adjusted according to the flame retardant grade requirements of UL-94, LOI, etc., so as to determine the optimal addition amount.
In addition, epoxy-coated ammonium polyphosphate itself has the characteristics of high thermal stability and hydrolysis resistance, which can be appropriately reduced compared with ordinary ammonium polyphosphate systems. It replaces traditional flame retardants for high-demand electronic components and building materials, which not only ensures flame retardancy, but also avoids precipitation or short service life. With new synergistic materials such as nanomaterials and carbon source additives, the minimum addition amount can be as low as about 12%, while still reaching the first-class flame retardant standard.
However, the compatibility of different epoxy systems varies slightly, and the specific dosage depends on the resin model, processing technology, and desired flame retardant standards. To sum up, epoxy-coated ammonium polyphosphate in epoxy resin materials is generally recommended to add 15% -25%. If there is a special process cooperation, the feasible range is between 10% -30%. The actual performance test can be finalized.
What are the storage and transportation requirements for Epoxy Coated Ammonium Polyphosphate?
Epoxy Coated Ammonium Polyphosphate is a new type of polymer flame retardant material with outstanding performance and is widely used in various industries. However, to ensure its function, it is necessary to strictly abide by the regulations of storage and transportation, so as not to cause deterioration and damage. One of the storage rooms should be a dry and ventilated room, do not let direct sunlight, and keep away from fire sources. This material is easy to absorb moisture, if it is stained with water vapor, it is easy to agglomerate, and the coating peels off, which affects its flame retardant effect. It is also avoided to store with volatile or corrosive substances to prevent chemical reactions and damage its essence. The room should be kept at a constant temperature, and avoid sudden changes in cold and heat to stabilize its quality.
When transporting, it must be sealed and packaged, covered with a firm container, which is shockproof and moisture-proof. The road is bumpy, so it needs to be arranged carefully, and it should be handled lightly; do not be dragged and dropped under heavy pressure. In case of rain, snow and wind, it is necessary to prepare protective tools to prevent the rain from drenching the body. The carriage should be clean and dry, free of odor and impurities. It is also forbidden to co-load with strong acids, strong alkalis, flammable and explosive substances on the way to prevent unexpected changes. Before and after loading and unloading, check the packaging for damage, and find cracks and leaks. Seal or replace the new product immediately. It is strictly forbidden to stay in places where people gather and sources of fire are densely packed for safety.
The long storage is highly padded with wooden frames, and it is separated from the ground. Do not allow Regular inspection to check its discoloration and agglomeration; ventilation conditions should also be checked when nothing happens. If the shelf life is exceeded, it should be discarded for testing and should not be used lightly. After unpacking, the remaining material should be sealed in time. Storage containers must be cleaned every time they are taken, and do not mix with sundries.
In short, although Epoxy Coated Ammonium Polyphosphate is a high-quality flame retardant, its storage and transportation must follow specifications, and caution is the first priority. Only by being suitable for storage environment and strict transportation methods can its quality be maintained for a long time, which is conducive to later use.
When transporting, it must be sealed and packaged, covered with a firm container, which is shockproof and moisture-proof. The road is bumpy, so it needs to be arranged carefully, and it should be handled lightly; do not be dragged and dropped under heavy pressure. In case of rain, snow and wind, it is necessary to prepare protective tools to prevent the rain from drenching the body. The carriage should be clean and dry, free of odor and impurities. It is also forbidden to co-load with strong acids, strong alkalis, flammable and explosive substances on the way to prevent unexpected changes. Before and after loading and unloading, check the packaging for damage, and find cracks and leaks. Seal or replace the new product immediately. It is strictly forbidden to stay in places where people gather and sources of fire are densely packed for safety.
The long storage is highly padded with wooden frames, and it is separated from the ground. Do not allow Regular inspection to check its discoloration and agglomeration; ventilation conditions should also be checked when nothing happens. If the shelf life is exceeded, it should be discarded for testing and should not be used lightly. After unpacking, the remaining material should be sealed in time. Storage containers must be cleaned every time they are taken, and do not mix with sundries.
In short, although Epoxy Coated Ammonium Polyphosphate is a high-quality flame retardant, its storage and transportation must follow specifications, and caution is the first priority. Only by being suitable for storage environment and strict transportation methods can its quality be maintained for a long time, which is conducive to later use.
