Melamine Resin Coated Ammonium Polyphosphate

Since ammonium phosphate began in modern chemistry, it has been widely developed by the world for its flame retardant effect. However, in its application, there are problems such as water solubility and migration, so the performance has not yet been perfected. Therefore, scholars used melamine resin as a coating and applied a film to its surface to form a resin-coated ammonium phosphate. Since the end of the 20th century, technology has gradually matured, and layer-by-layer processes have been introduced. Its physical properties have been greatly improved, and its water resistance and migration resistance have all been improved, and it is even more beneficial to polymer composites. In particular, it is environmentally friendly and halogen-free, meeting the needs of the times. Today, many industries, such as electrical, building materials, transportation, etc., compete for this material as the best. Over the decades, many scientists have pooled their wisdom, and the formula and manufacturing process have been continuously optimized. Melamine Resin Coated Ammonium Polyphosphate has become an important center in the field of flame retardancy.

This product is called melamine resin coated ammonium polyphosphate. It is a white powder with uniform particle size and good fluidity. It is made of high-purity ammonium polyphosphate and coated with melamine resin, which has excellent flame retardancy, water resistance and solvent resistance. It is used in plastics, coatings, rubber and other materials to effectively improve its flame retardant grade and reduce the generation of smoke and toxic gases. The coating layer prevents ammonium polyphosphate from direct contact with the substrate or the external environment, significantly improves the dispersion and compatibility, and can also delay the decomposition in case of moisture. Excellent heat resistance, high thermal decomposition temperature, suitable for a variety of high-content processing processes. Widely used in electronics, cables, construction and other industries, it is an environmentally friendly halogen-free flame retardant material, meeting the needs of green sustainable development.

Melamine Resin Coated Ammonium Polyphosphate is coated with melamine resin on the surface of ammonium polyphosphate. Its body is dense, white in color, uniform in particle size, and has excellent fluidity. Moderate consistency, easy to disperse in a variety of substrates. High ignition point, refractory in case of fire, no irritating odor. Slightly soluble in water, resistant to acid and alkali corrosion, and not easy to agglomerate when wet. Chemical properties are stable, do not react with most organic matter at room temperature, decompose at high temperature, release non-toxic ammonia and phosphide, form a porous carbon layer, and effectively isolate heat sources. Good compatibility with polymer materials can improve the flame retardant efficiency of the composite. The thermal decomposition temperature is greatly improved compared with uncoated products, and the flame retardant is effective and durable.

The name of this product is melamine resin coated ammonium polyphosphate. It is white powder with uniform particle size and good fluidity. Its phosphorus content is between about 31% and 32%, nitrogen content is about 14% to 15%, thermal decomposition temperature is higher than 280 ° C. It is non-combustible in case of fire and has little soot. The product has a high melting point, slow decomposition, extremely low water solubility, pH value is between 5.5 and 7.0, and the average particle size per gram can reach 15 microns. The appearance is clean and free, the moisture absorption is less than 0.25%, the surface is covered by melamine resin, the weather resistance is long-lasting, and it is easy to disperse in various polymer materials. The package is sealed in a 25kg plastic woven composite bag with a built-in polyethylene bag to keep it dry. Widely used in flame retardants, plastics, rubber, coatings, binders and other fields.

Take melamine, formaldehyde and ammonium polyphosphate as raw materials, use an appropriate amount of water as a solvent, first slowly dissolve ammonium polyphosphate in mild water, stir to disperse evenly. Then at a temperature between 60 and 80 degrees, slowly add melamine and formaldehyde, and the molar ratio is set according to the process. Stir at constant temperature to promote the reaction. During this period, an appropriate amount of acid is added as a catalyst to make melamine and formaldehyde condensate to form hydroxymethyl melamine, and then crosslinked and polymerized on the surface of ammonium polyphosphate, and gradually coated to form a film. After the reaction is terminated, the resulting product is centrifuged, washed, and dried to obtain a melamine resin-coated ammonium polyphosphate finished product. Its catalytic mechanism is acid-catalyzed hydroxymethylation and polycondensation reactions, which accelerate resin formation, improve the compactness of the coating, and enhance the water and heat resistance of the product. It is suitable for various uses of flame retardant materials.

Melamine resin is coated with ammonium phosphate, which is based on the principle of polymer reaction and applied to the modification process. Ammonium phosphate is easy to absorb moisture, difficult to be compatible with polymers, and has the risk of precipitation. Therefore, melamine resin is used as a coating to isolate moisture and increase its compatibility. Its preparation is first blended with ammonium phosphate, melamine and formaldehyde at a suitable temperature to make formaldehyde and melamine condensate into a network resin, and then ammonium phosphate particles are impregnated in it. Under the chemical reaction, the resin layer is dense, which not only resists wet invasion, but also inhibits migration and precipitation, and has the effect of flame retardancy. After surface modification, functional groups such as hydroxyl groups and amine groups can be introduced to enhance their ability to disperse in polymer matrices. The particle size of the finished product is controllable and the thermal stability is high, making it a good product for flame retardant applications of polymer materials.

Melamine Resin Coated Ammonium Polyphosphate is ammonium polyphosphate coated with melamine resin. In the chemical industry, it is called MR APP, and it has the synonym of Polyphosphate Ammonium with Melamine Resin Coating. Or Melamine-encapsulated APP, or Resin Coated APP is slightly called, its effect is fire retardant and the material is durable. There are many different product names in the market, such as PERMEL AP230, DURAFOS MR-APP, Exolit AP 418, etc., all of which are advertised by their characteristics. In technical papers, see Melamine Modified Ammonium Polyphosphate, Melamine Resin Microencapsulated APP, etc., and see MR--Ammonium Polyphosphate. These synonyms all refer to the same thing, and the name changes as it is used. To retrieve scientific materials, we need to know the names of the audience and observe their shapes carefully in order to make good use of them.

Melamine Resin Coated Ammonium Polyphosphate, which is used in chemical production for utensils, must keep in mind the principle of safe operation. Its flammability is non-flammable and slightly toxic. It is suitable for fire prevention. If it is not properly disposed of, it may cause personal harm, or damage the integrity of utensils. When safety is at risk, it is really dependent on norms to ensure. Where you are in charge of this object, it is advisable to set up a special storage place, store it in a dry and ventilated place, away from fire sources and high temperatures, do not expose it to sun and rain, and seal it tightly to prevent it from absorbing moisture and agglomeration. After activation, be sure to close the lid quickly to reduce the risk of volatilization and pollution. During the use period, the operator should wear a dust mask, latex gloves, protective clothing, etc., to protect the body and eyes, and avoid direct contact with the skin and eyes. If accidentally contaminated, rinse Firefighting equipment should be prepared in the workshop, and fireworks should be strictly prohibited. The workplace should be well ventilated to prevent dust accumulation, and special personnel should be appointed to clean it regularly. When handling, it must be lifted and handled with care. It is forbidden to drag and collide, and it cannot be mixed with reducing agents, strong acids, strong alkalis, and flammable substances. If the packaging is damaged or the product leaks, it must be collected with a clean shovel, properly sealed, and cannot be discarded in waterways, soils, and open ditches. Waste should be disposed of centrally according to regulations. Operators should receive pre-job training before entering the workplace to clarify emergency measures. In case of fire, dry powder, carbon dioxide and other fire extinguishing agents should be used, and it is not advisable to directly use water to fight. After the operation is completed, bathe and change clothes, clean and return home, and the work clothes should be washed by special personnel. Daily management requires regular inspections of the integrity of storage and production equipment to prevent problems before they occur; if you feel a pungent odor, leave the scene quickly, open the window to exhaust, and find out the reason before returning to work. To commute to and from work, you need to register the circulation of materials to prevent unrelated people from entering and leaving the workshop at will. Maintain this standard, be careful, Melamine Resin Coated Ammonium Polyphosphate can be relied on to be safe from personal safety, and also help all industries in infinity.

Melamine Resin Coated Ammonium Polyphosphate, its flame retardant, heat-resistant and insoluble in water, is often an important flame retardant agent. Widely used in plastics, rubber, coatings, fibers and wood and many other fields. Added to polyolefins, epoxy resins, polyurethane materials, can significantly improve its fire resistance. And because its surface is covered with melamine resin, it has excellent dispersion and compatibility, and the particles are not easy to agglomerate, which can make the mechanical properties of the substrate undiminished. It is also common in architectural paint interiors, transportation appliances, and electronic components. It is especially suitable for polymer material synthesis and composite material manufacturing. Where you need to strengthen the flame retardant effect, rely on its help. Environmental protection and halogen-free, waiting to be promoted.

Research and development of Melamine Resin Coated Ammonium Polyphosphate to meet the flame retardant requirements of materials. At first, ammonium aminophosphate was used as a base to solidify its chemical properties, but it was easy to absorb moisture and disperse unevenly when exposed, which was not conducive to the application of polymers. Melamine resin was used as a coating and coated its surface to isolate water vapor and increase its dispersion and thermal stability. Chemical coating not only inhibits the loss of flame retardants, but also reduces its impact on the mechanical properties of the matrix. In recent years, the process has been gradually improved to optimize the thickness and uniformity of the package, taking into account flame retardant efficiency and environmental friendliness. Review the gas released in the fire, improve the formula, and strive for green and low toxicity. Today, Melamine Resin Coated Ammonium Polyphosphate has been widely used in electronics, cables, building composites and other fields, demonstrating its outstanding achievements in research and development.

Melamine Resin Coated Ammonium Polyphosphate is commonly used in flame retardant materials. It is wrapped in ammonium polyphosphate with melamine resin, which not only has the effect of flame retardancy, but also increases water and heat resistance. However, its toxicity cannot be ignored. Considering animal experiments, it was found that high doses can cause slight irritation of the respiratory tract and digestive tract, and long-term exposure may also damage liver and kidney function. However, its toxicity is lower than that of primary melamine and ammonium polyphosphate, because resin wrapping can slow down the release rate and slightly slow the toxic effect. There was no obvious accumulation in short-term exposure, and there was no significant abnormality in the central nervous system and reproductive system. However, those who inhaled a large amount of dust for a long time were at risk of mild inflammation of lung tissue. Therefore, it is advisable to pay attention to protection when using, especially to prevent dust from escaping, so as not to harm health. Overall, this product has low toxicity, but it is safe to use, especially not to be ignored.

Melamine Resin Coated Ammonium Polyphosphate is a treasure of modern flame retardant materials. Refining its theory, the toughness of polyurea formaldehyde, the stability of ammonium sulfate, the outer coating resin, the inner storage function. It generates a carbon film in case of fire, isolates the source of combustion, and is widely used in building materials, plastics, and coatings. Looking at today's increasingly urgent environmental protection needs, material properties continue to advance, and there is still a wide space for improvement of products. Or nano-technology can be used to improve dispersion, and new compounding can be used to enhance flame retardant effect. In the foreseeable future, Melamine Resin Coated Ammonium Polyphosphate will go hand in hand with green technology to help products be lightweight, high-strength, non-toxic and harmless, meet the general trend of recycling, help human beings live and work in peace and contentment, and inspire a new chapter in flame retardant science.

As a trusted Melamine Resin 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.