Water Insoluble APP
| HS Code | 265972 |
| Chemical Name | Ammonium Polyphosphate (Water Insoluble) |
| Appearance | White powder |
| Chemical Formula | (NH4)n+2PnO3n+1 |
| Solubility | Insoluble in water |
| Density | 1.9 - 2.3 g/cm³ |
| Melting Point | Above 250°C |
| Thermal Stability | Good thermal stability |
| Ph In Water | Neutral |
| Flammability | Low flammability |
| Particle Size | Typically fine powder, can be controlled by production process |
| Phosphorus Content | High phosphorus content (varies by grade) |
| Nitrogen Content | Significant nitrogen content (varies by grade) |
As an accredited Water Insoluble APP factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 50 - kg bags for water - insoluble APP, protecting product during storage and transport. |
| Storage | Water - Insoluble APP (ammonium polyphosphate) should be stored in a cool, dry place. Keep it away from sources of heat and ignition as it may pose a fire risk in certain conditions. Store in a well - sealed container to prevent moisture absorption, which could affect its chemical properties and performance. Avoid storage near reactive substances to prevent unwanted reactions. |
| Shipping | Water - Insoluble APP is shipped in well - sealed containers to prevent moisture ingress. It's transported by suitable freight carriers following safety regulations for chemicals, ensuring secure delivery to the destination. |
Competitive Water Insoluble APP 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
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Historical Development
Since the beginning of water-insoluble ammonium phosphate (Water Insoluble APP), it has gradually flourished since the prosperity of modern industrial chemistry. At the beginning of the world, water-soluble phosphate was the main one, but it was easily soluble in water, and the effect of fire resistance was not improved. And scientists made great efforts to research and innovate. At the end of the 19th century, they gradually explored the reaction mechanism of ammonium phosphate and invented water-insoluble products. Since then, after many improvements, the method has been refined and the process has been improved. In the 20th century, European and American countries attached importance to high-performance flame retardancy and promoted water-insoluble APP, which was widely used in cables, wood, plastics and many other fields, which not only increased safety but also protected the ecology. Today, Huaxia scholars continue to follow suit, combine local resources and craftsmanship, refine the preparation technology, expand its wide application, and make APP water insoluble gradually become the mainstream of the industry. Its development trend is endless, and the prospect is promising.
Product Overview
Water Insoluble APP, a variant of ammonium phosphate salts, is specially made for flame retardant needs. Its appearance is white and fine powder, insoluble in water, stable at room temperature and pressure, and not easy to absorb moisture. The consistency is suitable, easy to mix with a variety of polymer materials, widely used in plastics, rubber, fibers and coatings. Its function, does not melt in case of fire, does not release toxic gas, can release phosphoric acid at high temperature, promote the surface of the substrate to form charcoal, isolate oxygen flame, and enhance the flame retardant performance of the product. Stable properties, excellent chemical properties, corrosion resistance, and does not react with resins and other media. The process is simple, evenly dispersed, and widely valued in the industrial field. This product can be used alone or in combination with other flame retardants to achieve excellent performance, ensure the safety of utensils, and enhance product quality. It is the best choice for fireproof materials.
Physical & Chemical Properties
The shape of water-insoluble ammonium polyphosphate is mostly white powder, light in weight but not sticky, fine in particle size and good in fluidity. Its melting point is high, and it begins to soften and decompose at high temperature. It is chemically stable at room temperature, difficult to volatilize, and has little odor. Dissolved in acid and alkali, phosphorus is released into salts, but it is rarely dissolved in hot and cold water, alcohol and other organic solvents. When decomposed by heat, ammonia and polyphosphoric acid are released, which has flame retardant effect. Used in combination with resins or other flame retardants, there is no violent reaction, and the properties are peaceful. Limited moisture absorption, good heat resistance, and storage is not easy to deteriorate. It is suitable for fire protection of various materials.
Technical Specifications & Labeling
Water Insoluble APP is a modified product of ammonium phosphate salt, which is hard white, odorless and tasteless, and slightly soluble in water. The particle size is mostly fine powder, the particle size distribution is uniform, the common main content (calculated as P 2O) is as high as 68% or more, the moisture does not exceed 0.5%, and the salinity and soluble matter are extremely small. Its pH value is measured in a 1% solution, ranging from 6.5 to 7.5. Heavy metal impurities are limited, and lead, arsenic, etc. do not exceed the standard. Woven bags or composite paper bags for packaging, lined with polyethylene bags, with clear gross weight and net weight. Indicate the product name, batch number, net weight, manufacturer and standard execution, and store it in a dry and cool place. This is the main technical specification and product identification of Water Insoluble APP.
Preparation Method
For those with insoluble monoammonium phosphate, use high-purity phosphoric acid and ammonia water as raw materials, strictly control the ratio, add it dropwise slowly, and stir at constant temperature. Heating to a significant reaction, monoammonium phosphate is formed, followed by multi-polymerization reaction, heating up to a certain degree, releasing water and then taking it to hang, cooling crystallization. Most of them are ammonium metaphosphate variants, and the pH is fine-tuned to control the degree of polymerization. If metal ions are used as catalysts, the polymerization can be accelerated and the deposition of insoluble substances can be promoted. Finally, the water-insoluble monoammonium phosphate finished product is obtained by filtration, washing, and drying. The process needs to beware of pyrolysis segregation. If the operation is slightly careless, the polymerization will be incomplete, resulting in the inclusion
Chemical Reactions & Modifications
The water-insoluble ammonium phosphate polymer is strong and insoluble, but although its performance is excellent, there is still room for improvement. The ancients said that the beauty of transformation lies in manipulation. Its modification is mostly based on coating, copolymerization or doping methods. Coating with silicon and metal oxides can enhance its water resistance and prevent migration. Copolymerization introduces organophosphorus and nitrogen monomers. In high temperature reactions, the polymer chains are staggered to increase the power of interconnection. If doped with nanoparticles, such as antimony trioxide and montmorillonite, new functional groups are formed at the microscopic interface, modifying the original structure and doubling the flame retardancy. The comprehensive use of various technologies not only maintains its original heat resistance and insolubility, but also increases additional functions. Exquisite study of its transformation is a model of chemical reaction and material modification, demonstrating the principle that everything in the world can be transformed according to the situation.
Synonyms & Product Names
Water-insoluble high-phosphate ammonium is one of the ammonium phosphate salts, and the chemical name is Ammonium Polyphosphate, referred to as APP. Market merchants may call it "ammonium polyphosphate" and "ammonium polyphosphate", and there are also books called "water-insoluble APP". It is a white powder, which is difficult to dissolve in water, releases phosphorus in case of fire, is not easy to lose, and is commonly found in flame retardant materials. There are also trade names such as "APP-water-insoluble type", "polymer ammonium polyphosphate", etc., all of which refer to this product. Or ammonium polyphosphate, or ammonium polyphosphate, are synonymous with this product. Traders advertise by different names, but the essence is the same, all refer to the main ingredient as water-insoluble ammonium polyphosphate. The name in circulation today either emphasizes molecular length or solubility, while the ontology is one and the name is multi-terminal.
Safety & Operational Standards
Water Insoluble APP is widely used in industry, but its properties are special. When operating, its safety and norms cannot be ignored. This substance is non-water soluble and cannot be dissolved in case of moisture. If it accidentally touches the skin or inhales dust, it can also cause harm. When handling and transferring, it is advisable to wear gloves, masks and goggles to isolate it from direct contact. Storage must be placed in a cool, ventilated and dry place. Do not coexist with acids, alkalis and organic flammable substances in the same room. Containers must be sealed to prevent moisture, agglomeration and leakage. Do not dispose of them arbitrarily. In case of leakage, slowly collect with clean tools, and water is prohibited to initialize to prevent spread. Fireworks are strictly prohibited on the job site, and operators need professional training and clear emergency measures. After daily work, wash your hands and exposed areas, pay attention to environmental hygiene, to prevent residue. If accidentally inhaled, should be quickly moved to fresh air, serious immediately sent to medical treatment. Mistakes and eyes should be rinsed with water, if necessary, seek help from a doctor. Product packaging barrels need to be intact, stably placed during transshipment, and cannot be dumped. The waste department should circulate the regulations, and it is strictly forbidden to discharge at will to avoid pollution of water and soil. The operation manual needs to be consulted from time to time, strictly abide by the rules, and cannot increase or decrease illegally. In case of difficulties, consult a professional in time. Maintenance equipment must be inspected regularly, overhauled in a timely manner to prevent leakage and avoid accidents. Keep track of information and keep track of it. It is based on the caution of all those engaged in APP operation and abide by the norms, so as to ensure personal and environmental safety, and benefit for a long time.
Application Area
Water-insoluble ammonium phosphate, strong and stable in quality, insoluble in contact with water, effective in case of fire. It is widely used, first in fire protection, construction, mixed with coating, can resist flames, and keep materials intact. Secondly, cable wrapping, release flame retardant force at high temperature, protect the cable safely. It can also be equipped with composite materials, used in transportation equipment, ships and aviation, to prevent fires. In the textile industry, dyeing and finishing fabrics also relies on it as a barrier to ensure the safety of clothing. Paper manufacturing, coupled with flame retardant paper, is suitable for electronic product packaging. However, its insoluble properties are particularly suitable for water-resistant occasions, without loss of flame retardant ingredients, and long-term protection. In addition, it can also be used for wood surface treatment to improve flame protection grade. It is a water-insoluble APP in the field of fire protection, widely used, and an indispensable aid for practical industrial and agricultural skills.
Research & Development
Since ancient times, new technologies have been introduced, and the chemical industry has particularly emphasized research and exquisite thinking. Today there is Water Insoluble APP, which came into being in response to the needs of environmental protection and high-efficiency flame retardant. Its shape is insoluble in water, and its performance is excellent. Compared with ordinary APPs, it has the same effect. At the beginning of research and development, a group of talents came to the fore, repeated tests, and improvements were made in the formulation and preparation. It not only overcomes the disadvantages of hydrolysis and decomposition, but also strictly controls the particle size to ensure uniform dispersion. It is also compatible with a variety of polymer materials, so that the product is widely used in coatings, plastics, rubber and other fields. Today, it has been tested and verified in the world. Its flame retardant effect is remarkable, stable and durable, safe and harmless. In the future, we still want to take advantage of the trend to expand and innovate, explore low-cost environmental protection methods, and meet the needs of the market.
Toxicity Research
Those with water-insoluble APP have stable properties and are widely used in flame retardant products. However, its toxicity should not be ignored, so it needs to be investigated in detail. Adopt a new APP, dissolve it in a suitable medium, and apply it to the test animals to observe its physiological variation. If the dose is very small, most animals are no different from normal, and there are no clinical symptoms. Increase the amount, and carefully check the liver and kidney function, but no major injuries were seen. However, for a few days to ten days, a few animals may see mild loss of appetite and weight loss, but most of them can return to normal after recuperation. Long-term exposure, re-testing of hemograms, and biochemical indicators are not seriously affected. From this perspective, under conventional dosage, the toxicity of water-insoluble APP is minimal, but long-term exposure to high doses should also be cautious. Supplemental cytotoxicity test, no significant apoptosis was seen. Therefore, when used for practical purposes, humans and animals are safe, and the dosage should be adhered to so as not to cause harm.
Future Prospects
Water-insoluble ammonium phosphate (APP), with its firmness, water resistance and insolubility, is unique in the field of fire protection. Looking at the progress of science and technology, the process is becoming more and more exquisite, and the performance of APP products is improving day by day, and it can be widely used in polymer materials, building materials, and coatings. Looking to the future, I think APP will be deeply integrated with new composite materials, giving products high-efficiency flame retardant and long-lasting protection. In addition, the need for environmental protection is increasingly recognized, and green and low-toxicity APP is regarded as the mainstream of research and development, contributing to the development of low-carbon economy. The international market is also expanding, and APP exports will be in line with international norms, promoting product standardization and serialization. If scientific research and innovation continue, APP will be carried forward in smart manufacturing and industrial upgrading, and become the mainstay of future flame retardant materials. It will help technology take off, and it will be
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What are the main uses of Water Insoluble APP?
Water-insoluble ammonium phosphate polymer, commonly known as water-insoluble APP, is a commonly used flame retardant in modern industry and scientific research. It is strong, insoluble in water, has excellent heat resistance and durability, and is widely used in various high-performance materials. In terms of its main uses, it is roughly as follows:
First of all, water-insoluble APP is often added to thermosetting, thermoplastics and resins to improve the flame retardant properties of materials. It is well known that plastics and their composites are flammable, and fires occur frequently, so the demand for flame retardants is increasing. When water-insoluble APP burns at high temperatures, it can release non-flammable gases or form a carbonized protective layer, blocking the contact between oxygen and flames, effectively delaying the combustion rate and protecting the substrate from rapid damage. Not only that, its physical and chemical properties are stable, so after long-term use and multiple heating, the flame retardant effect is still significant, and there is no water analysis.
Secondly, water-insoluble APP is also an important component of wood fire retardant coatings and wall coatings. Its structure is stable and not easy to be eroded by rainwater, so it can be used for fire prevention and anti-corrosion treatment inside and outside buildings. Coating with APP-based coatings on the surface of wooden structures not only prolongs the life of wood, but also is not easy to support combustion in case of fire, greatly improving building safety, and is widely favored by the construction industry.
Because water-insoluble APP is non-toxic, harmless, and meets the requirements of green environmental protection, it is also widely used in children's toys, electronic components, and food packaging. APP is also used as the main flame retardant source, combined with other additives and binders, to develop a variety of high-performance flame retardant composites, providing multiple guarantees for modern industry.
It can also be seen in the transportation industry, such as automobiles, aircraft and high-speed rail interior materials, which have extremely high requirements for fire performance. APP also has a place in such occasions with its excellent activity and stability. To sum up, water-insoluble APP has a wide range of uses, high stability, and wide adaptability. It is a powerful tool for modern society to live and work in peace and contentment and technological progress.
First of all, water-insoluble APP is often added to thermosetting, thermoplastics and resins to improve the flame retardant properties of materials. It is well known that plastics and their composites are flammable, and fires occur frequently, so the demand for flame retardants is increasing. When water-insoluble APP burns at high temperatures, it can release non-flammable gases or form a carbonized protective layer, blocking the contact between oxygen and flames, effectively delaying the combustion rate and protecting the substrate from rapid damage. Not only that, its physical and chemical properties are stable, so after long-term use and multiple heating, the flame retardant effect is still significant, and there is no water analysis.
Secondly, water-insoluble APP is also an important component of wood fire retardant coatings and wall coatings. Its structure is stable and not easy to be eroded by rainwater, so it can be used for fire prevention and anti-corrosion treatment inside and outside buildings. Coating with APP-based coatings on the surface of wooden structures not only prolongs the life of wood, but also is not easy to support combustion in case of fire, greatly improving building safety, and is widely favored by the construction industry.
Because water-insoluble APP is non-toxic, harmless, and meets the requirements of green environmental protection, it is also widely used in children's toys, electronic components, and food packaging. APP is also used as the main flame retardant source, combined with other additives and binders, to develop a variety of high-performance flame retardant composites, providing multiple guarantees for modern industry.
It can also be seen in the transportation industry, such as automobiles, aircraft and high-speed rail interior materials, which have extremely high requirements for fire performance. APP also has a place in such occasions with its excellent activity and stability. To sum up, water-insoluble APP has a wide range of uses, high stability, and wide adaptability. It is a powerful tool for modern society to live and work in peace and contentment and technological progress.
What are the chemical components of Water Insoluble APP?
Water-insoluble ammonium phosphate (APP) is one of the commonly used flame retardant materials today. Its chemical formula can be expressed as (NH PO 🥰) _n, in which the n number can be large or small, and the quality also changes. Water-insoluble APP refers to the higher degree of polymerization, and the degree of polymerization is generally above 100. It is a long-chain polyphosphate, which is mainly composed of ammonium ions and polyphosphate. Its production method is mostly phosphoric acid and ammonia as the main raw materials, which are obtained by concentration, heating and polymerization.
Its main component is polymeric ammonium phosphate, which contains polyphosphate ions and ammonium ions. In the structure, phosphorus atoms and oxygen are connected by P-O-P bonds to form a linear or partially branched polymer skeleton. Common structures such as: - [-PO 🥰 NH -] - _n. Interspersed with trace amounts of unpolymerized ammonium phosphate or ammonium diphosphate impurities, but the main chemical composition is still polymer polymerized ammonium phosphate. According to its degree of polymerization, it can be divided into Type I and Type II. Type II has a higher degree of polymerization, that is, it is more difficult to dissolve in water. Its chemical properties are stable, resistant to high temperature and moisture, and decompose during combustion to produce non-flammable gases, which play an excellent flame retardant effect.
Its main component is ammonium polyphosphate, which contains three elements: phosphorus, nitrogen and oxygen. According to experimental analysis, the phosphorus content is about 30% to 34%, the nitrogen content is about 11 to 16, and the rest is oxygen. Its color is mostly white and fine powder, which is easy to disperse in a variety of polymer materials. During the preparation process, free ammonia and free phosphoric acid that do not participate in the polymerization are mostly retained in very small amounts, and there are very few impurities in those who pass the test.
If the whole is described, the chemical composition of water-insoluble APP is mainly highly polymerized ammonium phosphate, the general formula is (NH~ PO 🥰) _n, in which ammonium root (NH~ 🥰) and polymerized polyphosphate root (PO 🥰~) are interleaved to form a polymer structure. In addition, a very small amount of additives can be added to adjust its thermal decomposition temperature, dispersibility or improve synergistic flame retardancy. However, it is still ammonium polyphosphate. In summary, water-insoluble APP is a high molecular weight ammonium polyphosphate salt with simple main components and stable structure. It is widely used in the flame retardancy of polymer materials, resulting in better safety and flame resistance.
Its main component is polymeric ammonium phosphate, which contains polyphosphate ions and ammonium ions. In the structure, phosphorus atoms and oxygen are connected by P-O-P bonds to form a linear or partially branched polymer skeleton. Common structures such as: - [-PO 🥰 NH -] - _n. Interspersed with trace amounts of unpolymerized ammonium phosphate or ammonium diphosphate impurities, but the main chemical composition is still polymer polymerized ammonium phosphate. According to its degree of polymerization, it can be divided into Type I and Type II. Type II has a higher degree of polymerization, that is, it is more difficult to dissolve in water. Its chemical properties are stable, resistant to high temperature and moisture, and decompose during combustion to produce non-flammable gases, which play an excellent flame retardant effect.
Its main component is ammonium polyphosphate, which contains three elements: phosphorus, nitrogen and oxygen. According to experimental analysis, the phosphorus content is about 30% to 34%, the nitrogen content is about 11 to 16, and the rest is oxygen. Its color is mostly white and fine powder, which is easy to disperse in a variety of polymer materials. During the preparation process, free ammonia and free phosphoric acid that do not participate in the polymerization are mostly retained in very small amounts, and there are very few impurities in those who pass the test.
If the whole is described, the chemical composition of water-insoluble APP is mainly highly polymerized ammonium phosphate, the general formula is (NH~ PO 🥰) _n, in which ammonium root (NH~ 🥰) and polymerized polyphosphate root (PO 🥰~) are interleaved to form a polymer structure. In addition, a very small amount of additives can be added to adjust its thermal decomposition temperature, dispersibility or improve synergistic flame retardancy. However, it is still ammonium polyphosphate. In summary, water-insoluble APP is a high molecular weight ammonium polyphosphate salt with simple main components and stable structure. It is widely used in the flame retardancy of polymer materials, resulting in better safety and flame resistance.
How is the heat resistance of Water Insoluble APP?
Water Insoluble Ammonium Polyphosphate (APP) is one of the important flame retardants in modern materials. Its quality is firm and dense, the granular shape is uniform, and the surface is smooth. Under the action of high temperature, it exhibits excellent heat resistance. The APP molecule contains a polymer chain, and the phosphorus-oxygen bond is very stable, so it is extremely difficult to decompose at room temperature. Only at high temperature and after a long time can it slowly fission. Probably at temperatures as high as 250 to 300 degrees Celsius, subtle decomposition and water escape begin, and after 350 degrees Celsius, it becomes more and more obvious. As for its decomposition products, most of them are polyphosphoric acid and amorphous phosphate, which are stable at high temperatures. The thermogravimetric analysis shows that the initial weight loss temperature is high, and the decomposition temperature of 5% of most polymeric APP can reach more than 300 degrees, indicating that its heat resistance is long-lasting and not easy to dissipate.
And APP can form a dense carbon layer on the surface of the substrate at high temperature, isolating oxygen and heat sources, and inhibiting the spread of combustion, which is the so-called "phase transfer flame retardant effect". Its carbonization temperature is about 280 degrees Celsius, and the resulting carbon layer is resistant to high temperature and stable in structure, enhancing the flame resistance of the body. Furthermore, APP is not easy to produce significant volatile by-products due to heat, nor does it have a strong irritating odor, so it is widely used in polypropylene, polyethylene, wood, epoxy resin and other materials that require high heat resistance. It is an ideal flame retardant component in polymer composite flame retardant materials.
To sum up, the heat resistance of APP is rooted in the stability of its polymer chain and phosphorus-oxygen skeleton, which can withstand high temperature test and is not easy to decompose. In addition, the decomposition temperature is high, the carbon layer protection is significant, the properties are stable, and the thermal cracking products are safe, so it has an outstanding position in the field of polymer material heat resistance modification and flame retardancy. Due to its essence, it has been strong for a long time and is an indispensable element of contemporary materials science.
And APP can form a dense carbon layer on the surface of the substrate at high temperature, isolating oxygen and heat sources, and inhibiting the spread of combustion, which is the so-called "phase transfer flame retardant effect". Its carbonization temperature is about 280 degrees Celsius, and the resulting carbon layer is resistant to high temperature and stable in structure, enhancing the flame resistance of the body. Furthermore, APP is not easy to produce significant volatile by-products due to heat, nor does it have a strong irritating odor, so it is widely used in polypropylene, polyethylene, wood, epoxy resin and other materials that require high heat resistance. It is an ideal flame retardant component in polymer composite flame retardant materials.
To sum up, the heat resistance of APP is rooted in the stability of its polymer chain and phosphorus-oxygen skeleton, which can withstand high temperature test and is not easy to decompose. In addition, the decomposition temperature is high, the carbon layer protection is significant, the properties are stable, and the thermal cracking products are safe, so it has an outstanding position in the field of polymer material heat resistance modification and flame retardancy. Due to its essence, it has been strong for a long time and is an indispensable element of contemporary materials science.
What should I pay attention to when storing and transporting Water Insoluble APP?
Water-insoluble ammonium phosphate (APP) has stable properties. However, during storage and transshipment, it is especially necessary to be cautious and safe. There are five reasons, which are briefly described as follows:
First, choose a place for storage. The warehouse must be dry and ventilated, away from moisture and water sources. In case of moisture, the APP may be invaded by moisture, or gradually deteriorated, or agglomerated and difficult to use, affecting its effectiveness. Waterproofing facilities should be installed, and the roof and ground should not leak. The warehouse wall should be guarded against mildew moss, and it should be constantly swept to keep it clean everywhere.
Second, stack in batches. The bags should not be placed higher than the shoulders to prevent collapse and hurt people. Between each stack, leave a wide gap for ventilation and bypass, so as not to retain moisture. The backing plate is laid at the bottom, so that the goods are not grounded and the earth gas is isolated. And the wall distance is more than one foot, so as to avoid the moisture return of the wall.
3. Proper packaging. APP commonly used woven bags are sealed, and each bag must be strictly sealed, so as not to leak. When accessing and handling, handle it with care to prevent damage and leakage. In case of package rupture, it should be repaired quickly, and do not store with residual bags.
4. Partition storage. APP should not be mixed with acids, alkalis, flammable substances, explosive substances, food, feed, etc. Storage area must be clearly marked and managed by a special person. Do not expose to high temperature sun exposure. In case of sun exposure, or physical and chemical reactions, it will affect its properties.
5. Fire prevention hazards. Although the APP is self-flammable, the bag material is flammable. Open flames are prohibited in the warehouse, and electric welding and smoking are not allowed. Prepare dry powder fire extinguishers and check them on time. Regular inspections, and dispose of any abnormalities immediately.
When transporting, it must be covered with a clean vehicle and a rain cloth to prevent wind and rain from invading. Loading and unloading must be gentle to prevent the outer bag from breaking. It is strictly forbidden to assemble and transport with other chemicals on the way, especially avoid mixing with flammable and corrosive products.
Looking at all things, it is more important to be cautious. Be careful to prevent moisture, properly pack, clearly identify, prohibit mixing, and avoid fire sources. Then the water-insoluble APP can be of its full quality and safe.
First, choose a place for storage. The warehouse must be dry and ventilated, away from moisture and water sources. In case of moisture, the APP may be invaded by moisture, or gradually deteriorated, or agglomerated and difficult to use, affecting its effectiveness. Waterproofing facilities should be installed, and the roof and ground should not leak. The warehouse wall should be guarded against mildew moss, and it should be constantly swept to keep it clean everywhere.
Second, stack in batches. The bags should not be placed higher than the shoulders to prevent collapse and hurt people. Between each stack, leave a wide gap for ventilation and bypass, so as not to retain moisture. The backing plate is laid at the bottom, so that the goods are not grounded and the earth gas is isolated. And the wall distance is more than one foot, so as to avoid the moisture return of the wall.
3. Proper packaging. APP commonly used woven bags are sealed, and each bag must be strictly sealed, so as not to leak. When accessing and handling, handle it with care to prevent damage and leakage. In case of package rupture, it should be repaired quickly, and do not store with residual bags.
4. Partition storage. APP should not be mixed with acids, alkalis, flammable substances, explosive substances, food, feed, etc. Storage area must be clearly marked and managed by a special person. Do not expose to high temperature sun exposure. In case of sun exposure, or physical and chemical reactions, it will affect its properties.
5. Fire prevention hazards. Although the APP is self-flammable, the bag material is flammable. Open flames are prohibited in the warehouse, and electric welding and smoking are not allowed. Prepare dry powder fire extinguishers and check them on time. Regular inspections, and dispose of any abnormalities immediately.
When transporting, it must be covered with a clean vehicle and a rain cloth to prevent wind and rain from invading. Loading and unloading must be gentle to prevent the outer bag from breaking. It is strictly forbidden to assemble and transport with other chemicals on the way, especially avoid mixing with flammable and corrosive products.
Looking at all things, it is more important to be cautious. Be careful to prevent moisture, properly pack, clearly identify, prohibit mixing, and avoid fire sources. Then the water-insoluble APP can be of its full quality and safe.
What are the advantages of Water Insoluble APP compared to ordinary APP?
Water-insoluble ammonium phosphate (APP) has many advantages over ordinary ammonium phosphate polymers (APP). APP is often used as a flame retardant in plastics, rubber, fibers and wood, and its performance depends on its water solubility and thermal stability. Ordinary APP is mostly water-soluble and easily soluble in water. If it is used in occasions that require water resistance and washable resistance, it is easy to be lost, which greatly reduces the flame retardant efficiency and also affects the mechanical properties and durability of the product. Therefore, the water-insoluble APP came into being after seeking its improvement.
Water-insoluble APP is to adjust the degree of polymerization during the preparation process, or through special surface treatment, so that the molecular chain is long, the structure is dense, and it is difficult to be soluble in water. Its main advantages are three: First, the water resistance is greatly increased, and it is insoluble in water. It is suitable for products, fabrics, coatings, etc. that need to be washed many times or are in a humid environment. It can effectively prevent the loss of flame retardants due to washing, and ensure the flame retardant lasting. Second, the thermal stability is enhanced. Due to the dense molecular structure and high thermal cracking temperature, it can better play a flame retardant role in case of fire. Third, the mobility is small, and it is not easy to migrate outward and precipitate when placed in the product. It can maintain the appearance and performance of the product for a In addition, water-insoluble APP is mostly a polymer with a high degree of polymerization, which decomposes and releases inorganic acids. It can be used in combination with an intumescent flame retardant system to form a dense carbon layer and improve the fire resistance of the material.
And water-insoluble APP has the advantages of low toxicity and environmental protection. It is safer than traditional halogen flame retardants and does not release harmful halogen fumes during combustion. It is respected by modern flame retardant materials. However, its preparation process is more complicated and the cost is slightly higher. However, due to its superior performance, it is widely used in high-demand flame retardant products. It is an ideal choice for coatings, fiberboards, flame-retardant fabrics, electronic and electrical shells, etc. From this point of view, water-insoluble APP is unattainable for ordinary APP due to its excellent water resistance, heat resistance, environmental protection and durability.
Water-insoluble APP is to adjust the degree of polymerization during the preparation process, or through special surface treatment, so that the molecular chain is long, the structure is dense, and it is difficult to be soluble in water. Its main advantages are three: First, the water resistance is greatly increased, and it is insoluble in water. It is suitable for products, fabrics, coatings, etc. that need to be washed many times or are in a humid environment. It can effectively prevent the loss of flame retardants due to washing, and ensure the flame retardant lasting. Second, the thermal stability is enhanced. Due to the dense molecular structure and high thermal cracking temperature, it can better play a flame retardant role in case of fire. Third, the mobility is small, and it is not easy to migrate outward and precipitate when placed in the product. It can maintain the appearance and performance of the product for a In addition, water-insoluble APP is mostly a polymer with a high degree of polymerization, which decomposes and releases inorganic acids. It can be used in combination with an intumescent flame retardant system to form a dense carbon layer and improve the fire resistance of the material.
And water-insoluble APP has the advantages of low toxicity and environmental protection. It is safer than traditional halogen flame retardants and does not release harmful halogen fumes during combustion. It is respected by modern flame retardant materials. However, its preparation process is more complicated and the cost is slightly higher. However, due to its superior performance, it is widely used in high-demand flame retardant products. It is an ideal choice for coatings, fiberboards, flame-retardant fabrics, electronic and electrical shells, etc. From this point of view, water-insoluble APP is unattainable for ordinary APP due to its excellent water resistance, heat resistance, environmental protection and durability.
