News Details
Polyurethane plastic flame retardant
2017-11-24 15:23:56
Polyurethane plastic flame retardant
Polyurethane and its products are more flammable. In order to reduce the occurrence of fire, a number of polyurethane plastic flame retardants are often added to improve the flame resistance. Compared with other additives, the development and application of polyurethane plastic flame retardant started a little later, but its development is very fast. In some countries, the production of flame retardant is only second to plasticizer. Therefore, the study of polyurethane plastic flame retardant and flame retardant technology has become a very important issue.
With the application of modern science and technology, the old flame retardant and flame retardant technology cannot meet the market demand for its performance, such as halogen containing flame retardant materials in combustion of hydrogen halide gas, and water to form hydrogen halogen acid is corrosive and cause two pollution.
The halogen-free flame retardant is growing, halogen containing flame retardant is difficult to obtain a bigger development in twenty-first Century, and the inorganic flame retardant with water, such as Al (OH) 3, Mg (OH) 2 will develop to the direction of micro and nano, single flame retardant compound with flame retardant agent will be replaced the synergistic effect of a new type of flame retardant, twenty-first Century and will be halogen-free flame retardant technology, high efficiency, low smoke, low toxicity, multi function.
At high temperature, flame retardants form condensed phase on the surface of polymer, which can isolate the air, prevent heat transfer and reduce the release amount of combustible gas, so as to achieve the purpose of flame retardant.
The formation of condensed phase separation film there are two ways: one is the flame retardant in the combustion temperature is decomposed into vitreous substance volatile, coated on the surface of polymer, this dense protective layer plays a role of isolation membrane, such as boron and phosphorus halide flame retardants with similar characteristics; the two is to promote the polymer surface rapid dehydration carbonization using thermal degradation of flame retardant, the formation of carbide layer, does not produce flame by using elemental carbon evaporation combustion and decomposition combustion, flame retardancy protection effect, such as flame retardant flame retardant of oxygen containing polymers.
In polymer combustion process, free radicals generated a lot of promoting reaction gas combustion, such as trying to capture and destroy the free radicals, cut off the free radical chain reaction, can control the combustion, and achieve the purpose of flame retardant. The flame retardant mechanism of halogenated flame retardants belongs to this kind of flame retardants.
Tris(2-chloroisopropyl)Phosphate(TCPP)
Cas No:13674 -84-5
HS Code HS: 29199000
The most important indicator of product:
colorless transparent liquid, moisture ≤ 0.1, Acid value ≤ 0.1, Chroma ≤ 50, the phosphorus content: 9.4 ± 0.5
Raw materials: phosphorus oxychloride and epichlorohydrin.
Belong to several categories of dangerous goods:
Currently Tris(2-chloroisopropyl)Phosphate TCPP general cargo exports are not dangerous.
The product is used for the soft / hard polyurethane foam, with thermal and hydrolytic stability good, especially suitable for ASTME84 (Level 11) foam, with low viscosity unsaturated polyester resin in low temperature application and phenolic plastics at. This product is also used to grab the foam sealant and sheet production. For polyvinyl chloride, polystyrene, phenolic resin, acrylic resin and rubber, coating, flame retardant, also used for soft and hard polyurethane foam, epoxy resin, polystyrene, cellulose acetate, ethyl cellulose tree and phenolic plastics, polyvinyl acetate and gun type foam sealant production. Particularly recommended for rigid polyurethane foam has excellent thermal and hydrolytic stability is particularly suitable for ASTM84 (II), compound for polyurethane foam and unsaturated resin and phenolic plastics.
Flame retardant endothermic dehydration, transformation, decomposition or other endothermic reaction, reduce the temperature of the combustion area and the polymer surface, prevent thermal degradation, thereby reducing the volatilization of combustible gas, the final failure to maintain sustained combustion conditions of polymer, flame retardant to achieve. Al (OH) 3 and Mg (OH) 2 and boron inorganic flame retardants are representative.
The existing flame retardants are compounded to make all kinds of action mechanism work together, so as to reduce the amount of flame retardant and get better flame retardant effect. Such as the coordinated use of antimony oxide and organic halogen flame retardant, flame retardant system can form a kind of very effective, acting on the fuel burning when the organic halide hydrogen or halogen halogen acid, then reacted with antimony oxide or antimony halide generated three antimony halide acid (SbOX), the antimony compounds with flame retardant the effect of flame retardant products, SbX3 is very large, it can form an inert gas, reducing the fuel in contact with oxygen, the carbon layer formation; high temperature volatilization of SbX3 into the fire, into all antimonides and halogen free radicals, they change the chemical properties of the flame, the flame energy consumption. In order to achieve the purpose of flame retardant.
Organic phosphorus flame retardants are organic flame retardants equal to halogen flame retardants.
They have many varieties and wide uses. In the early 1970s, organic phosphorus flame retardants accounted for more than 50% of the total sales in the organic flame retardants market in the United states. At present, the main application of varieties of phosphate such as isodecyl phenyl phosphate two, 2 ethylhexyl phosphate two phenyl three cumene ester; phosphonic acid esters, such as double (2 chloro ethyl) vinyl phosphonate; salts, CyagardAF1, ethylene bis [three (2 cyanoethyl) phosphonium bromide salts. Phosphorus containing diols and polyols.
With the development of flame retardant requirements for polyurethane, polyolefin and various engineering plastics, a series of new organophosphorus flame retardants with high compatibility and stability have emerged. For example, CN1197, the Department of pentaerythritol based phosphate flame retardant, can be used for flame retardant epoxy and unsaturated polyester resin composites; using CN1197 as the intermediate spawned a new series of flame retardants, such as the use of CN1197 with acrylic acid was prepared by flame retardant acrylic ester containing caged phosphate structure, and ammonium polyphosphate can be used the flame retardant polypropylene, the effect is very significant.
Wang Yuzhong et al. Synthesized two phenyl phenyl sulfone (PSPPP), two phenyl phosphonic acid phenyl ester (PAPPP) and poly (phenyl phosphonic acid bisphenol A ester) (PBPPP). Bisphenol S and benzoyl two chloride were used as raw materials in PSPPP system, and the average molecular weight was more than 104. The product has high thermal stability and excellent flame retardancy for PET.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
Polyurethane and its products are more flammable. In order to reduce the occurrence of fire, a number of polyurethane plastic flame retardants are often added to improve the flame resistance. Compared with other additives, the development and application of polyurethane plastic flame retardant started a little later, but its development is very fast. In some countries, the production of flame retardant is only second to plasticizer. Therefore, the study of polyurethane plastic flame retardant and flame retardant technology has become a very important issue.
With the application of modern science and technology, the old flame retardant and flame retardant technology cannot meet the market demand for its performance, such as halogen containing flame retardant materials in combustion of hydrogen halide gas, and water to form hydrogen halogen acid is corrosive and cause two pollution.
The halogen-free flame retardant is growing, halogen containing flame retardant is difficult to obtain a bigger development in twenty-first Century, and the inorganic flame retardant with water, such as Al (OH) 3, Mg (OH) 2 will develop to the direction of micro and nano, single flame retardant compound with flame retardant agent will be replaced the synergistic effect of a new type of flame retardant, twenty-first Century and will be halogen-free flame retardant technology, high efficiency, low smoke, low toxicity, multi function.
At high temperature, flame retardants form condensed phase on the surface of polymer, which can isolate the air, prevent heat transfer and reduce the release amount of combustible gas, so as to achieve the purpose of flame retardant.
The formation of condensed phase separation film there are two ways: one is the flame retardant in the combustion temperature is decomposed into vitreous substance volatile, coated on the surface of polymer, this dense protective layer plays a role of isolation membrane, such as boron and phosphorus halide flame retardants with similar characteristics; the two is to promote the polymer surface rapid dehydration carbonization using thermal degradation of flame retardant, the formation of carbide layer, does not produce flame by using elemental carbon evaporation combustion and decomposition combustion, flame retardancy protection effect, such as flame retardant flame retardant of oxygen containing polymers.
In polymer combustion process, free radicals generated a lot of promoting reaction gas combustion, such as trying to capture and destroy the free radicals, cut off the free radical chain reaction, can control the combustion, and achieve the purpose of flame retardant. The flame retardant mechanism of halogenated flame retardants belongs to this kind of flame retardants.
Tris(2-chloroisopropyl)Phosphate(TCPP)
Cas No:13674 -84-5
HS Code HS: 29199000
The most important indicator of product:
colorless transparent liquid, moisture ≤ 0.1, Acid value ≤ 0.1, Chroma ≤ 50, the phosphorus content: 9.4 ± 0.5
Raw materials: phosphorus oxychloride and epichlorohydrin.
Belong to several categories of dangerous goods:
Currently Tris(2-chloroisopropyl)Phosphate TCPP general cargo exports are not dangerous.
The product is used for the soft / hard polyurethane foam, with thermal and hydrolytic stability good, especially suitable for ASTME84 (Level 11) foam, with low viscosity unsaturated polyester resin in low temperature application and phenolic plastics at. This product is also used to grab the foam sealant and sheet production. For polyvinyl chloride, polystyrene, phenolic resin, acrylic resin and rubber, coating, flame retardant, also used for soft and hard polyurethane foam, epoxy resin, polystyrene, cellulose acetate, ethyl cellulose tree and phenolic plastics, polyvinyl acetate and gun type foam sealant production. Particularly recommended for rigid polyurethane foam has excellent thermal and hydrolytic stability is particularly suitable for ASTM84 (II), compound for polyurethane foam and unsaturated resin and phenolic plastics.
Flame retardant endothermic dehydration, transformation, decomposition or other endothermic reaction, reduce the temperature of the combustion area and the polymer surface, prevent thermal degradation, thereby reducing the volatilization of combustible gas, the final failure to maintain sustained combustion conditions of polymer, flame retardant to achieve. Al (OH) 3 and Mg (OH) 2 and boron inorganic flame retardants are representative.
The existing flame retardants are compounded to make all kinds of action mechanism work together, so as to reduce the amount of flame retardant and get better flame retardant effect. Such as the coordinated use of antimony oxide and organic halogen flame retardant, flame retardant system can form a kind of very effective, acting on the fuel burning when the organic halide hydrogen or halogen halogen acid, then reacted with antimony oxide or antimony halide generated three antimony halide acid (SbOX), the antimony compounds with flame retardant the effect of flame retardant products, SbX3 is very large, it can form an inert gas, reducing the fuel in contact with oxygen, the carbon layer formation; high temperature volatilization of SbX3 into the fire, into all antimonides and halogen free radicals, they change the chemical properties of the flame, the flame energy consumption. In order to achieve the purpose of flame retardant.
Organic phosphorus flame retardants are organic flame retardants equal to halogen flame retardants.
They have many varieties and wide uses. In the early 1970s, organic phosphorus flame retardants accounted for more than 50% of the total sales in the organic flame retardants market in the United states. At present, the main application of varieties of phosphate such as isodecyl phenyl phosphate two, 2 ethylhexyl phosphate two phenyl three cumene ester; phosphonic acid esters, such as double (2 chloro ethyl) vinyl phosphonate; salts, CyagardAF1, ethylene bis [three (2 cyanoethyl) phosphonium bromide salts. Phosphorus containing diols and polyols.
With the development of flame retardant requirements for polyurethane, polyolefin and various engineering plastics, a series of new organophosphorus flame retardants with high compatibility and stability have emerged. For example, CN1197, the Department of pentaerythritol based phosphate flame retardant, can be used for flame retardant epoxy and unsaturated polyester resin composites; using CN1197 as the intermediate spawned a new series of flame retardants, such as the use of CN1197 with acrylic acid was prepared by flame retardant acrylic ester containing caged phosphate structure, and ammonium polyphosphate can be used the flame retardant polypropylene, the effect is very significant.
Wang Yuzhong et al. Synthesized two phenyl phenyl sulfone (PSPPP), two phenyl phosphonic acid phenyl ester (PAPPP) and poly (phenyl phosphonic acid bisphenol A ester) (PBPPP). Bisphenol S and benzoyl two chloride were used as raw materials in PSPPP system, and the average molecular weight was more than 104. The product has high thermal stability and excellent flame retardancy for PET.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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