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Organophosphorus flame retardant for polyurethane foam
2017-12-6 10:42:19
Organophosphorus flame retardant for polyurethane foam
The research of organic phosphorus flame retardants for polyurethane foam plastics is mainly focused on phosphate, phosphonate, phosphine oxide, polyphosphate and expanded organophosphorus compounds.
Phosphate ester flame retardant, divided into phosphoric acid phosphate only flame retardant and nitrogenous phosphate ester flame retardant. Most phosphoric acid esters with phosphate are phenolic phosphate esters and a small amount of alkyl phosphate. It can be used for the flame retardancy of high impact polystyrene.
The flame retardancy of Organophosphorous flame retardants for polyurethane foam plastics is good for flame-retardant polyurethane foam, and has good hydrolysis resistance. In addition, these compounds have good compatibility and can be used for the flame retardant treatment of PU foam and other materials. Nitrogen containing phosphates have been paid more and more attention because of the two elements containing nitrogen and phosphorus whose flame retardancy is better than that of phosphorus only. Nitrogen elements in the nitrogenous phosphate ester flame retardant mainly come from the amine, two amine and melamine in the compound.
The preparation, properties and application of nitrogenous phosphate ester flame retardant. The organophosphorus flame retardant used in polyurethane foam has good thermal stability and compatibility. It does not spray frost and impermeable. It is mainly used for the flame retardancy of polystyrene.
A new phosphonate flame retardant N, N- two (2- hydroxyethyl) aminmethyl phosphonic acid two ethyl ester (BHAPE) has been synthesized by phosphonate ester flame retardant, Chu Hongying and Henan University et al.
BHAPE has good resistance to hydrolysis and moisture resistance, resistant to flame retardancy and low temperature. It is mutually soluble with many phosphorous flame retardants and can be used as a compound flame retardant. BHAPE has low toxicity and does not inhibit the activity of plasma, hemoglobin and brain cholinesterase. It is mainly used for flame retardance of polyurethane foam, polyurethane composite, unsaturated polyester and phenolic resin.
Phosphine oxide is a effective flame retardant for polyphenylene oxide, it can be comparable to phosphate flame retardant, and phosphorus containing flame retardant has high phosphorus content, and the flame retardant dosage is the same when it reaches the same level of flame retardant. Li Xia and Li Qiaoling of the Zhongshan University have synthesized a flame retardant double (pair - carboxyphenyl) phenyl phosphine oxide.
The compound is a typical organic phosphorus flame retardant for reactive polyurethane foam. Molecular structure contains two carboxyl and flame-retardant element phosphorus, not only has excellent flame retardancy, but also can improve many properties of flame retardants. It can be used as a reactive flame retardant monomer for plastics, such as polyester, polyamide, polybenzazole and so on. It is especially suitable for the synthesis of flame-retardant polyester fiber, so that the fiber has excellent fiber formation, flame retardance and high glass transition temperature.
Triphenyl Phosphate (TPP)
Triphenyl Phosphatetpp-cas: 15-86-6
EINECS number: 204-112-2
Chinese Name: Triphenyl Phosphate
Chinese alias: phosphoric acid three phenyl ester; flame retardant TPP; TPP
English Name: Triphenyl Phosphate
English alias: Triphenyl Phosphate free of phenol; Triphenyl Phosphate (TPPa); Triphenyl Phosphate white XTL Phosphoric acid triphenyl ester; TPP
Molecular formula: C18H15O4P; OP (OC6H5) 3
Appearance and properties: white crystalline powder, odorless, slightly deliquescence
Molecular weight: 326.29
Steam pressure: 0.01kPa/20 ℃
The above is the product of the CAS, such as Triphenyl Phosphate tpp-cas: 15-86-6 other information please contact us!
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.
Polymeric phosphate flame retardant, containing repeating units of polymerization phosphate flame retardant molecules, their high molecular weight, low vapor pressure, low toxicity, small mobility, good durability, and multi-function, flame retardant and plasticizer and anti-oxidation function, is an important development field of organic phosphorus flame retardant agent for polyurethane foam in recent years. There are two main oligomers and high polymer types. Among the representative, there are two main types of RDP and BDP.
These two kinds of flame retardants, with two or more than two phosphorus atoms, have good thermal stability and excellent flame retardancy. They have good processability and flame retardancy in polyphenylene ether, polycarbonate and polystyrene and their alloys.
Double [2, 6, three 7- - 1- double - oxygen phosphorus (2, 2, 2) - 4-] octane methyl ester melamine, Melabis, as a single component, intumescent flame retardant, a flame retardant, good study showed that 20% of Melabis added to PP, the limit the oxygen index system can reach 31.7%, the flame retardant level can reach 94 V-0 UL.
Although halogen-containing flame retardants have good flame retardancy, the application of halogen free flame retardants will be the direction of their development in plastics because of their huge pollution to the environment. Flame retardant plastic ideal should meet the following points: (1) flame retardant efficiency is high, can give good flame retardant plastic material; (2) resin has good compatibility with plastics, can be well dispersed in the resin to form a homogeneous system; (3) does not decompose in the processing temperature of plastics; (4) does not reduce the plastic mechanical properties, electrical properties and weathering performance; (5) good durability, can play a role in the retention of flame retardant plastics in the long term; (6) non-toxic, odorless, no pollution, no toxic gases in the flame retardant process, does not have two pollution.
Plastic flame retardants are developing in the direction of high efficiency, low smoke, low toxicity and low cost. Especially the development and application of halogen-free, low smoke and low toxic intumescent flame retardants, silicone flame retardants and nano flame retardants will become the research focus of plastic flame retardants.
When sulfonated flame retardants are used in halogen free flame retardancy of PC, the flame-retardant effect of thin-walled products is not ideal. They need to be blended with other halogen free flame retardants to achieve higher flame retardant requirements. Although the price of the sulfonate flame retardant is much higher than that of the ordinary flame retardant, it is lower than FR-2025, with low addition, high efficiency and high cost performance.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
The research of organic phosphorus flame retardants for polyurethane foam plastics is mainly focused on phosphate, phosphonate, phosphine oxide, polyphosphate and expanded organophosphorus compounds.
Phosphate ester flame retardant, divided into phosphoric acid phosphate only flame retardant and nitrogenous phosphate ester flame retardant. Most phosphoric acid esters with phosphate are phenolic phosphate esters and a small amount of alkyl phosphate. It can be used for the flame retardancy of high impact polystyrene.
The flame retardancy of Organophosphorous flame retardants for polyurethane foam plastics is good for flame-retardant polyurethane foam, and has good hydrolysis resistance. In addition, these compounds have good compatibility and can be used for the flame retardant treatment of PU foam and other materials. Nitrogen containing phosphates have been paid more and more attention because of the two elements containing nitrogen and phosphorus whose flame retardancy is better than that of phosphorus only. Nitrogen elements in the nitrogenous phosphate ester flame retardant mainly come from the amine, two amine and melamine in the compound.
The preparation, properties and application of nitrogenous phosphate ester flame retardant. The organophosphorus flame retardant used in polyurethane foam has good thermal stability and compatibility. It does not spray frost and impermeable. It is mainly used for the flame retardancy of polystyrene.
A new phosphonate flame retardant N, N- two (2- hydroxyethyl) aminmethyl phosphonic acid two ethyl ester (BHAPE) has been synthesized by phosphonate ester flame retardant, Chu Hongying and Henan University et al.
BHAPE has good resistance to hydrolysis and moisture resistance, resistant to flame retardancy and low temperature. It is mutually soluble with many phosphorous flame retardants and can be used as a compound flame retardant. BHAPE has low toxicity and does not inhibit the activity of plasma, hemoglobin and brain cholinesterase. It is mainly used for flame retardance of polyurethane foam, polyurethane composite, unsaturated polyester and phenolic resin.
Phosphine oxide is a effective flame retardant for polyphenylene oxide, it can be comparable to phosphate flame retardant, and phosphorus containing flame retardant has high phosphorus content, and the flame retardant dosage is the same when it reaches the same level of flame retardant. Li Xia and Li Qiaoling of the Zhongshan University have synthesized a flame retardant double (pair - carboxyphenyl) phenyl phosphine oxide.
The compound is a typical organic phosphorus flame retardant for reactive polyurethane foam. Molecular structure contains two carboxyl and flame-retardant element phosphorus, not only has excellent flame retardancy, but also can improve many properties of flame retardants. It can be used as a reactive flame retardant monomer for plastics, such as polyester, polyamide, polybenzazole and so on. It is especially suitable for the synthesis of flame-retardant polyester fiber, so that the fiber has excellent fiber formation, flame retardance and high glass transition temperature.
Triphenyl Phosphate (TPP)
Triphenyl Phosphatetpp-cas: 15-86-6
EINECS number: 204-112-2
Chinese Name: Triphenyl Phosphate
Chinese alias: phosphoric acid three phenyl ester; flame retardant TPP; TPP
English Name: Triphenyl Phosphate
English alias: Triphenyl Phosphate free of phenol; Triphenyl Phosphate (TPPa); Triphenyl Phosphate white XTL Phosphoric acid triphenyl ester; TPP
Molecular formula: C18H15O4P; OP (OC6H5) 3
Appearance and properties: white crystalline powder, odorless, slightly deliquescence
Molecular weight: 326.29
Steam pressure: 0.01kPa/20 ℃
The above is the product of the CAS, such as Triphenyl Phosphate tpp-cas: 15-86-6 other information please contact us!
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.
Polymeric phosphate flame retardant, containing repeating units of polymerization phosphate flame retardant molecules, their high molecular weight, low vapor pressure, low toxicity, small mobility, good durability, and multi-function, flame retardant and plasticizer and anti-oxidation function, is an important development field of organic phosphorus flame retardant agent for polyurethane foam in recent years. There are two main oligomers and high polymer types. Among the representative, there are two main types of RDP and BDP.
These two kinds of flame retardants, with two or more than two phosphorus atoms, have good thermal stability and excellent flame retardancy. They have good processability and flame retardancy in polyphenylene ether, polycarbonate and polystyrene and their alloys.
Double [2, 6, three 7- - 1- double - oxygen phosphorus (2, 2, 2) - 4-] octane methyl ester melamine, Melabis, as a single component, intumescent flame retardant, a flame retardant, good study showed that 20% of Melabis added to PP, the limit the oxygen index system can reach 31.7%, the flame retardant level can reach 94 V-0 UL.
Although halogen-containing flame retardants have good flame retardancy, the application of halogen free flame retardants will be the direction of their development in plastics because of their huge pollution to the environment. Flame retardant plastic ideal should meet the following points: (1) flame retardant efficiency is high, can give good flame retardant plastic material; (2) resin has good compatibility with plastics, can be well dispersed in the resin to form a homogeneous system; (3) does not decompose in the processing temperature of plastics; (4) does not reduce the plastic mechanical properties, electrical properties and weathering performance; (5) good durability, can play a role in the retention of flame retardant plastics in the long term; (6) non-toxic, odorless, no pollution, no toxic gases in the flame retardant process, does not have two pollution.
Plastic flame retardants are developing in the direction of high efficiency, low smoke, low toxicity and low cost. Especially the development and application of halogen-free, low smoke and low toxic intumescent flame retardants, silicone flame retardants and nano flame retardants will become the research focus of plastic flame retardants.
When sulfonated flame retardants are used in halogen free flame retardancy of PC, the flame-retardant effect of thin-walled products is not ideal. They need to be blended with other halogen free flame retardants to achieve higher flame retardant requirements. Although the price of the sulfonate flame retardant is much higher than that of the ordinary flame retardant, it is lower than FR-2025, with low addition, high efficiency and high cost performance.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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