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Phosphatide gathered flame retardants
2017-9-26 11:35:22
Phosphatide gathered flame retardants
In order to further improve the stability of the flame retardants, overcome small molecule phosphate ester flame retardant volatile disadvantages such as easily, some phosphate oligomer flame retardants and larger molecular weight of phosphorous flame retardants also received people's concern. PSTPP, a phosphine - containing low - polymer PSTPP, was synthesized from phenylphosphine dichloride and 4, 4'- dihydroxydiphenylsulfone (PET) in 2004. When the phosphorus content reaches 2.5 per cent in the flame retardant PET system, the LOI value can reach 29, the vertical combustion reaches the v-0 level, and no droplets are produced when it is burnt.
2005 yu-zhong wang reported spiro structure of phosphate ester oligomer DPSPB, PPPBP, the phosphate oligomer flame retardants have no halogen, phosphorus content is high, good into charcoal, flame retardant effect is obvious, resistance to drop, widely applicable, etc. It can not only be in situ polymerization with polyester monomer, but also can be mixed with polyester and polyolefins directly.
2009 Hu Yuan reported DOPO modification such as aromatic dihydric phenol and pentaerythritol phosphate phosphorus oxychloride reaction synthesis of high phosphorus content of phosphate ester oligomer flame retardants, has the very good expansion into charcoal; Flame retardant epoxy resin, the LOI value has improved significantly, vertical combustion V - level 0, to overcome the existing small molecule organic phosphorus flame retardant thermal decomposition temperature is low, poor compatibility with polymer matrix, shortcomings and so on easy to migrate.
Add flame retardant agent on the industrial application economic, convenient, but it has poor compatibility with polymer, reduce mechanical properties of polymer, limits its application in some high-end products. By modifying the structure of the main chain, side chain or curing agent of the polymer by phosphor active monomer, the phosphorus is introduced into the polymer, which can overcome the above problems to a large extent.
Isopropylphenyl Phosphate(IPPP35) Use
The Product Is Used For Rubber Products And PVC Plastic Flame Retardant Conveyor Belt, Cable, Chloroprene Rubber, Rubber And Other Synthetic Rubber Flame Retardant Plasticizer, Isopropylphenyl Phosphate Flame Retardant IPPP35 Use Also Applies To Fabric Coating, Circuit Boards, Flooring, Textiles, PVC, Phenolic Resin, And Other Fields.
Isopropylphenyl Phosphate Flame Retardant IPPP35 Halogen-Free Phosphate Flame Retardant Plasticizer, Which Does Not Pollute The Environment Twice. It Is The Lowest In The Phosphate Species And Has The Highest Phosphorus Content. This Product Is Colorless And Transparent, Good Compatibility, The Use Of Both Flame Retardant And Plasticizer, In The Flame Retardant And Plasticizer To Play A Balance Between The Role, But Also To Make The Processing Of The Same Material And Its Physical Properties.
For some common polymers (such as polystyrene, polymethyl methacrylate, polyacrylonitrile, etc.), the additive type flame retardant is used, which is generally larger. In this paper, the polymerization of the phosphor containing phosphatid monomers by free radical reaction can improve the flame retardation of these polymers. Although the phosphorus content in the polymer obtained by this method is very low, the flame retardant effect can be compared with that of high content of additive phosphor flame retardant.
2- carboxyethyl phenylphosphonic acid (CEPP) is an industrial reactive organic phosphine flame retardant, often used in permanent flame retardant modification of polyester. There is still a great deal of literature on application technology and scope. The spinning performance of the CEPP flame retardant polyester is comparable to that of conventional PET; Excellent thermal stability, no decomposition in the spinning process, odor in the spinning field; And it can improve the antistatic property of polyester products, which can be applied to various fields of PET. During the copolymerization with PTA and EG, the content of the phosphorus content of the flame retardant polyester slice was 0.35%~ 0.60%, and the LOI value of the fabric could reach 30~ 36.
In 2000, Wang et al. synthesized the reaction type organophosphate flame retardant BHPP with dichlorophosphoryl dichlorophosphate and the flame retardant of epoxy resin. Compared with the bromine epoxy system (10% of bromine content), the phosphorus content in BHPP/DGEBA system can reach UL94V-0 when the phosphorus content is 1.5%, and it does not produce smoke and poisonous gas when burned.
The hyperbranched polymer, HHPP, was synthesized by the reaction of Deng et al. In 2004. The HHPP chain contains a large number of hydroxyl groups, which can be used as the curing agent for epoxy resin. The test results show that HHPP can significantly improve the glass conversion temperature of resin. The addition of 25% can effectively reduce the heat release rate of the curing system and improve the rate of residual carbon, and the LOI value reaches 30.
In 2006, Chen et al. obtained the reaction type flame retardant BDSPBP, which can be used for flame retardant epoxy resin. BDSPBP is good in carbon, and the formation of dense carbon layer can provide a good thermal insulation. In the co-mixing modification of epoxy resin, when BDSPBP added 18%, the LOI value reached 29.4, and the vertical combustion reached v-0.
In 2007, the reaction type flame retardant DPODP was synthesized from benzaldehyde, isobutyraldehyde, trichloride, and benzoquinone. Using differential scanning calorimetry and thermo-gravimetric method for thermal properties of cured resin was tested and found the condensate has a high glass transition temperature (165 ℃) and high burning rate of carbon residue (700 ℃, 31%). The flame retardant performance test shows that the curing substance has good flame retardant effect, and its LOI value can reach 29.5 when phosphorus content is 2.25%.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
In order to further improve the stability of the flame retardants, overcome small molecule phosphate ester flame retardant volatile disadvantages such as easily, some phosphate oligomer flame retardants and larger molecular weight of phosphorous flame retardants also received people's concern. PSTPP, a phosphine - containing low - polymer PSTPP, was synthesized from phenylphosphine dichloride and 4, 4'- dihydroxydiphenylsulfone (PET) in 2004. When the phosphorus content reaches 2.5 per cent in the flame retardant PET system, the LOI value can reach 29, the vertical combustion reaches the v-0 level, and no droplets are produced when it is burnt.
2005 yu-zhong wang reported spiro structure of phosphate ester oligomer DPSPB, PPPBP, the phosphate oligomer flame retardants have no halogen, phosphorus content is high, good into charcoal, flame retardant effect is obvious, resistance to drop, widely applicable, etc. It can not only be in situ polymerization with polyester monomer, but also can be mixed with polyester and polyolefins directly.
2009 Hu Yuan reported DOPO modification such as aromatic dihydric phenol and pentaerythritol phosphate phosphorus oxychloride reaction synthesis of high phosphorus content of phosphate ester oligomer flame retardants, has the very good expansion into charcoal; Flame retardant epoxy resin, the LOI value has improved significantly, vertical combustion V - level 0, to overcome the existing small molecule organic phosphorus flame retardant thermal decomposition temperature is low, poor compatibility with polymer matrix, shortcomings and so on easy to migrate.
Add flame retardant agent on the industrial application economic, convenient, but it has poor compatibility with polymer, reduce mechanical properties of polymer, limits its application in some high-end products. By modifying the structure of the main chain, side chain or curing agent of the polymer by phosphor active monomer, the phosphorus is introduced into the polymer, which can overcome the above problems to a large extent.
Isopropylphenyl Phosphate(IPPP35) Use
The Product Is Used For Rubber Products And PVC Plastic Flame Retardant Conveyor Belt, Cable, Chloroprene Rubber, Rubber And Other Synthetic Rubber Flame Retardant Plasticizer, Isopropylphenyl Phosphate Flame Retardant IPPP35 Use Also Applies To Fabric Coating, Circuit Boards, Flooring, Textiles, PVC, Phenolic Resin, And Other Fields.
Isopropylphenyl Phosphate Flame Retardant IPPP35 Halogen-Free Phosphate Flame Retardant Plasticizer, Which Does Not Pollute The Environment Twice. It Is The Lowest In The Phosphate Species And Has The Highest Phosphorus Content. This Product Is Colorless And Transparent, Good Compatibility, The Use Of Both Flame Retardant And Plasticizer, In The Flame Retardant And Plasticizer To Play A Balance Between The Role, But Also To Make The Processing Of The Same Material And Its Physical Properties.
For some common polymers (such as polystyrene, polymethyl methacrylate, polyacrylonitrile, etc.), the additive type flame retardant is used, which is generally larger. In this paper, the polymerization of the phosphor containing phosphatid monomers by free radical reaction can improve the flame retardation of these polymers. Although the phosphorus content in the polymer obtained by this method is very low, the flame retardant effect can be compared with that of high content of additive phosphor flame retardant.
2- carboxyethyl phenylphosphonic acid (CEPP) is an industrial reactive organic phosphine flame retardant, often used in permanent flame retardant modification of polyester. There is still a great deal of literature on application technology and scope. The spinning performance of the CEPP flame retardant polyester is comparable to that of conventional PET; Excellent thermal stability, no decomposition in the spinning process, odor in the spinning field; And it can improve the antistatic property of polyester products, which can be applied to various fields of PET. During the copolymerization with PTA and EG, the content of the phosphorus content of the flame retardant polyester slice was 0.35%~ 0.60%, and the LOI value of the fabric could reach 30~ 36.
In 2000, Wang et al. synthesized the reaction type organophosphate flame retardant BHPP with dichlorophosphoryl dichlorophosphate and the flame retardant of epoxy resin. Compared with the bromine epoxy system (10% of bromine content), the phosphorus content in BHPP/DGEBA system can reach UL94V-0 when the phosphorus content is 1.5%, and it does not produce smoke and poisonous gas when burned.
The hyperbranched polymer, HHPP, was synthesized by the reaction of Deng et al. In 2004. The HHPP chain contains a large number of hydroxyl groups, which can be used as the curing agent for epoxy resin. The test results show that HHPP can significantly improve the glass conversion temperature of resin. The addition of 25% can effectively reduce the heat release rate of the curing system and improve the rate of residual carbon, and the LOI value reaches 30.
In 2006, Chen et al. obtained the reaction type flame retardant BDSPBP, which can be used for flame retardant epoxy resin. BDSPBP is good in carbon, and the formation of dense carbon layer can provide a good thermal insulation. In the co-mixing modification of epoxy resin, when BDSPBP added 18%, the LOI value reached 29.4, and the vertical combustion reached v-0.
In 2007, the reaction type flame retardant DPODP was synthesized from benzaldehyde, isobutyraldehyde, trichloride, and benzoquinone. Using differential scanning calorimetry and thermo-gravimetric method for thermal properties of cured resin was tested and found the condensate has a high glass transition temperature (165 ℃) and high burning rate of carbon residue (700 ℃, 31%). The flame retardant performance test shows that the curing substance has good flame retardant effect, and its LOI value can reach 29.5 when phosphorus content is 2.25%.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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