News Details
PBT/PET bromine containing flame retardant
2017-11-23 11:05:17
PBT/PET bromine containing flame retardant
PBT/PET brominated flame retardant is a fast developing flame retardant variety in recent years. PBT/PET brominated flame retardant with high molecular weight, good thermal stability, the polymer dispersion and good compatibility, easy processing, nonblooming etc..
PBT/PET brominated flame retardants are mainly used in thermoplastic resins such as PBT and PET. On the basis of the synthesis of brominated polystyrene named brominated polystyrene and poly brominated styrene, as can be seen from the naming of brominated polystyrene is accomplished by bromination of polystyrene; poly brominated styrene styrene by first olefinic bond protection, then bromination, the olefinic bond recovery, synthesis brominated styrene polymerization, again completed. Solvent can be divided into solvent method and non solvent method in the process of synthesis. Because the solvent method consumes less bromine, people usually use solvent method to synthesize it.
Before the use of brominated polystyrene, polystyrene can be used by this kind of masterbatch, raw materials to produce products with lighter colors; also can be made of polystyrene foam plastic recycling, by dissolving it in two chlorine ethane, filter to remove impurities, bromination, both play a role in environmental protection, but also reduces the cost. The main reaction synthesis process involves bromide this step, bromide with bromine in the presence of catalyst bromide, also can be used to synthesis of bromine chloride, bromide.
Using bromine as the catalyst, should use the appropriate temperature, and recovery of hydrogen bromide, the appropriate choice of transition metal elements are a little more lively as catalyst; using bromine chloride as brominating agent, catalyst activity should pay attention to the use of medium, in order to control the rate of reaction. In the two synthetic methods, attention should be paid to avoid the bromination of fatty carbon, inhibit the free radical reaction, otherwise it will lead to the decline of thermal stability of products, and affect the product performance.
The flame retardant effect of brominated flame retardant is very good, and its application level is quite extensive. BFR bromine containing flame retardants can not only reduce the possibility of fire, but also hinder the spread of the fire. In the case of fire, brominated flame retardants can elongate the initial fire time, and this is often the prime time for people to escape easily. Indoor fires are easy to produce because of sufficient heat, so that all the indoor combustible combustion, this situation is called flashover, about a few minutes after the beginning of the fire occurred. Brominated flame retardants can slow down the rate of combustion, slow down the flash phenomenon, and allow people more time to escape.
Most brominated flame retardants are fat soluble and easy to accumulate in the human body. The European Union has restricted the use of partially brominated flame retardants. The five bromo two phenyl ether and eight bromo two phenyl ether in polybrominated diphenyl ethers have been banned from use in 2004. The maximum permissible amounts of polybrominated diphenyl ethers and polybrominated diphenyl ethers two are 0.1% in the hazardous substances restriction directive, two.
In order to prevent fire, brominated flame retardants were invented more than 40 years ago, and widely used in all aspects of people's lives. It is added to plastics and resins to delay fire, so as to rob people to escape and save time.
Triphenyl Phosphate (TPP)
Flame retardant tpp This product has good transparency , flexibility and good benefits antimicrobial resistance, with water, oil, electrical insulation and compatibility. Mainly for the cellulose resin, a vinyl resin, natural rubber and synthetic rubber flame retardant plasticizers may also be used for acetate and glycerol triacetate film thin , rigid polyurethane foam , phenolic resin, and engineering plastics such as resistance PPO burning plasticized . Flame Retardant tpp manufacturer price mainly in Jiangsu .
Flame retardant TPP has many advantages, such as excellent transparency, softness, bacterial resistance, and water proof, grease-proof, good electric insulation, as well as good compatibility. Flame retardant TPP is mainly used as the flame-retardant plasticizer for cellulose resin, vinyl resin, natural rubber and synthetic rubber. And it may also be used as the flame-retardant plasticizer for glyceryl triacetate thin ester and film, rigid polyurethane foam, phenolic aldehyde resin, and PPO, etc.
Flame retardant TPP is a kind of halogen-free environment-friendly flame retardant with phosphorus element. Most of the products in the market are self-colored flaky crystal, our product is self-colored crystalline powder, and is more soluble in organic solvents. TPP is not soluble in water, but soluble in benzene, chloroform, ether and acetone, and slightly soluble in Z alcohol. Flame retardant TPP is nonflammable with slight aromatic odor and slight deliquescence. The fusion point is about 50 ℃, and fast melts to hoop-shape when heated. The lubricate effect is excellent, and it is often used as the flame retardant plasticize lubricant. What is more, it is used as the flame retardant for many plastics and resins, such as phenolic aldehyde resin, epoxy resin and so on.
Brominated flame retardants, as the largest flame retardant varieties, in which the classic product production process is mature, cost-effective, wide range of applications, in the plastic products used in the history of flame retardant fire protection up to half a century. In particular, the decomposition temperature of brominated flame retardants matches the polymer synthesis materials, so the best flame retardant effect can be achieved with very little amount, which is indispensable in the fire prone electronic and electrical products, and there is no better substitute in some fields at present.
But environmental scientists at home and abroad have warned that polybrominated bromide may be affecting our nervous system, immune system and reproductive system, including consequences of mental decline, decreased immunity, cancer, birth problems, and malformations. More and more studies have confirmed that five bromo two phenyl ether, eight bromo two phenyl ether and decabromodiphenyl oxide is harmful to human health, causing them to be part of the European Union and the United States, disable.
According to the investigation of professional institutions, the brominated flame retardants still have market competitiveness because of their obvious advantages. The main agent of bromine based flame retardant manufacturers are actively cooperate with relevant organizations to carry out the risk assessment of human health and environmental safety, and domestic flame retardant industry for many years has been committed to the development of the safe use of bromine flame retardant technology and new varieties more secure. Under the present technical conditions, it is impractical to completely ban brominated flame retardants in some fields. In addition, not all brominated flame retardants have adverse effects on human health and the environment.
Although safer halogen free flame retardants have emerged, brominated flame retardants are still mainstream in China at a low price. The data show that China has become an emerging market for flame retardants.
Brominated flame retardants (BFR brominated flame retardants) are a generic group of brominated organic compounds. These organic compounds can be used as flame retardants, and have a very good fireproof effect on plastics and textiles. They are one of the main chemical flame retardants. However, the European Union has restrictions on the use of partially brominated flame retardants.
BFR brominated flame retardants can inhibit the combustion of organic compounds, commonly used in electronic products, clothing and furniture, in order to reduce the flammability of products. There are about two million and five hundred thousand tons of brominated flame retardants used in polymer in each year, which is two years of polybrominated diphenyl ether the use amount to more than forty thousand metric tons.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
PBT/PET brominated flame retardant is a fast developing flame retardant variety in recent years. PBT/PET brominated flame retardant with high molecular weight, good thermal stability, the polymer dispersion and good compatibility, easy processing, nonblooming etc..
PBT/PET brominated flame retardants are mainly used in thermoplastic resins such as PBT and PET. On the basis of the synthesis of brominated polystyrene named brominated polystyrene and poly brominated styrene, as can be seen from the naming of brominated polystyrene is accomplished by bromination of polystyrene; poly brominated styrene styrene by first olefinic bond protection, then bromination, the olefinic bond recovery, synthesis brominated styrene polymerization, again completed. Solvent can be divided into solvent method and non solvent method in the process of synthesis. Because the solvent method consumes less bromine, people usually use solvent method to synthesize it.
Before the use of brominated polystyrene, polystyrene can be used by this kind of masterbatch, raw materials to produce products with lighter colors; also can be made of polystyrene foam plastic recycling, by dissolving it in two chlorine ethane, filter to remove impurities, bromination, both play a role in environmental protection, but also reduces the cost. The main reaction synthesis process involves bromide this step, bromide with bromine in the presence of catalyst bromide, also can be used to synthesis of bromine chloride, bromide.
Using bromine as the catalyst, should use the appropriate temperature, and recovery of hydrogen bromide, the appropriate choice of transition metal elements are a little more lively as catalyst; using bromine chloride as brominating agent, catalyst activity should pay attention to the use of medium, in order to control the rate of reaction. In the two synthetic methods, attention should be paid to avoid the bromination of fatty carbon, inhibit the free radical reaction, otherwise it will lead to the decline of thermal stability of products, and affect the product performance.
The flame retardant effect of brominated flame retardant is very good, and its application level is quite extensive. BFR bromine containing flame retardants can not only reduce the possibility of fire, but also hinder the spread of the fire. In the case of fire, brominated flame retardants can elongate the initial fire time, and this is often the prime time for people to escape easily. Indoor fires are easy to produce because of sufficient heat, so that all the indoor combustible combustion, this situation is called flashover, about a few minutes after the beginning of the fire occurred. Brominated flame retardants can slow down the rate of combustion, slow down the flash phenomenon, and allow people more time to escape.
Most brominated flame retardants are fat soluble and easy to accumulate in the human body. The European Union has restricted the use of partially brominated flame retardants. The five bromo two phenyl ether and eight bromo two phenyl ether in polybrominated diphenyl ethers have been banned from use in 2004. The maximum permissible amounts of polybrominated diphenyl ethers and polybrominated diphenyl ethers two are 0.1% in the hazardous substances restriction directive, two.
In order to prevent fire, brominated flame retardants were invented more than 40 years ago, and widely used in all aspects of people's lives. It is added to plastics and resins to delay fire, so as to rob people to escape and save time.
Triphenyl Phosphate (TPP)
Flame retardant tpp This product has good transparency , flexibility and good benefits antimicrobial resistance, with water, oil, electrical insulation and compatibility. Mainly for the cellulose resin, a vinyl resin, natural rubber and synthetic rubber flame retardant plasticizers may also be used for acetate and glycerol triacetate film thin , rigid polyurethane foam , phenolic resin, and engineering plastics such as resistance PPO burning plasticized . Flame Retardant tpp manufacturer price mainly in Jiangsu .
Flame retardant TPP has many advantages, such as excellent transparency, softness, bacterial resistance, and water proof, grease-proof, good electric insulation, as well as good compatibility. Flame retardant TPP is mainly used as the flame-retardant plasticizer for cellulose resin, vinyl resin, natural rubber and synthetic rubber. And it may also be used as the flame-retardant plasticizer for glyceryl triacetate thin ester and film, rigid polyurethane foam, phenolic aldehyde resin, and PPO, etc.
Flame retardant TPP is a kind of halogen-free environment-friendly flame retardant with phosphorus element. Most of the products in the market are self-colored flaky crystal, our product is self-colored crystalline powder, and is more soluble in organic solvents. TPP is not soluble in water, but soluble in benzene, chloroform, ether and acetone, and slightly soluble in Z alcohol. Flame retardant TPP is nonflammable with slight aromatic odor and slight deliquescence. The fusion point is about 50 ℃, and fast melts to hoop-shape when heated. The lubricate effect is excellent, and it is often used as the flame retardant plasticize lubricant. What is more, it is used as the flame retardant for many plastics and resins, such as phenolic aldehyde resin, epoxy resin and so on.
Brominated flame retardants, as the largest flame retardant varieties, in which the classic product production process is mature, cost-effective, wide range of applications, in the plastic products used in the history of flame retardant fire protection up to half a century. In particular, the decomposition temperature of brominated flame retardants matches the polymer synthesis materials, so the best flame retardant effect can be achieved with very little amount, which is indispensable in the fire prone electronic and electrical products, and there is no better substitute in some fields at present.
But environmental scientists at home and abroad have warned that polybrominated bromide may be affecting our nervous system, immune system and reproductive system, including consequences of mental decline, decreased immunity, cancer, birth problems, and malformations. More and more studies have confirmed that five bromo two phenyl ether, eight bromo two phenyl ether and decabromodiphenyl oxide is harmful to human health, causing them to be part of the European Union and the United States, disable.
According to the investigation of professional institutions, the brominated flame retardants still have market competitiveness because of their obvious advantages. The main agent of bromine based flame retardant manufacturers are actively cooperate with relevant organizations to carry out the risk assessment of human health and environmental safety, and domestic flame retardant industry for many years has been committed to the development of the safe use of bromine flame retardant technology and new varieties more secure. Under the present technical conditions, it is impractical to completely ban brominated flame retardants in some fields. In addition, not all brominated flame retardants have adverse effects on human health and the environment.
Although safer halogen free flame retardants have emerged, brominated flame retardants are still mainstream in China at a low price. The data show that China has become an emerging market for flame retardants.
Brominated flame retardants (BFR brominated flame retardants) are a generic group of brominated organic compounds. These organic compounds can be used as flame retardants, and have a very good fireproof effect on plastics and textiles. They are one of the main chemical flame retardants. However, the European Union has restrictions on the use of partially brominated flame retardants.
BFR brominated flame retardants can inhibit the combustion of organic compounds, commonly used in electronic products, clothing and furniture, in order to reduce the flammability of products. There are about two million and five hundred thousand tons of brominated flame retardants used in polymer in each year, which is two years of polybrominated diphenyl ether the use amount to more than forty thousand metric tons.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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