News Details
PVC resin flame retardant
2017-12-2 11:56:10
PVC resin flame retardant
The flame retardant PVC resin is mostly in halogen containing compounds based flame retardant, produce smoke, toxic, corrosive gases to the production, application and environment from the two disaster and the international debate on dioxin and other reasons, makes this kind of PVC resin flame retardant in flame retardant despite the current stage is still a pivotal position, but people are looking for this kind of flame retardant alternatives, namely halogen-free flame retardant.
Red phosphorus is one of them, but because of its color, so its application in light products limited, at the same time it can release toxic phosphine. On the contrary, halogen-free intumescent flame retardant can not only give better comprehensive balance for properties of flame retardant materials, but also have wide applicability in color. Therefore, halogen-free intumescent flame retardant technology has been gradually taken seriously. The halogen-free intumescent flame-retardant white PVC is still in the basic research stage. The white flame-retardant PVC in the international market is just entering the production stage.
Since 80s, launched by the red phosphorus as flame retardant A3X series products. KR4455, launched in 1995, is a flame retardant PVC product with inorganic hydroxide as flame retardant. Because it improves the interface characteristics of inorganic filler and matrix resin, it makes up for the effect of such flame retardants on the mechanical properties of materials. In other flame-retardant varieties, BASF also introduced melamine compounds as the product of the flame retardant system KR4205. The launch of the red phosphorus as flame retardant PVC resin containing color. Some products are made of character, so the red phosphorus in sometimes may also be restricted.
A kind of flame retardant PVC copolymer Latalnid68 HZVOH is suitable for the production and application of electrical and electronic thin film products. Its processability and fire resistance are good, so it can be used for connectors, micro socket and so on.
The composite materials of flame-retardant PVC abroad have also been studied. A flame retardant PVC packaging materials, brand name Staticule MPP, it can control the development of electrostatic products made by metal and curing process of flame retardant and eliminate static charge, this new film used for making a roll, belt, shield and cloth etc..
Tris(2-chloroisopropyl)Phosphate(TCPP)
Tris(2-chloroisopropyl)Phosphate(Flame retardant TCPP) is a colorless or yellowish oily liquid. It is soluble in benzene, alcohol, carbon tetrachloride and other organic solvents, but insoluble in water and aliphatic hydrocarbons. Its relative density is 1.27-1.31, refractive index is 1.4916 ( 21.5 ), viscosity is 58mm2 / S, chlorine content is 32.8%, and phosphorus content is 9.5%. As the molecule contains phosphorus and chlorine element simultaneously, its flame retardant properties is significant, as well as the plasticization, damp-proof, antistatic effects and so on. Tris(2-chloropropyl) phosphate (TCPP) is an additive flame retardant.
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.
In addition, in the complex, complex Rhodia has developed a variety of flame retardant PVC, mainly organic phosphorus as flame retardant products, ehnyl C52G3MZ25 etc.. Edward D.W and so on have studied the application of iron compounds in halogen-free flame retarded polyvinyl chloride. They mainly use inorganic iron compounds, polyphenylene oxide and zinc borates to increase the content of carbon compounds, so as to improve the effect of flame retardancy.
Piete Gijsman et al. Studied melamine cyanurate in PVC resin and PVC resin 6 "flame retardant mechanism of the difference, they think the main degradation products of polyvinyl chloride resin 6 is already in amine, and the main degradation products of polyvinyl chloride resin is cyclopentanone, that effect of MC in PVC resin than in PVC the resin 6 is good, they also proved that MC in PVC resin 6 and polyvinyl chloride resin at 350-450 deg.c occurs is a chemical reaction.
Based on this, in recent years, people developed a new type of PVC resin flame retardant ten bromo two benzene ethane, with ten PBDEs as high bromine content and good flame retardant efficiency, but it has good thermal stability and light stability, and not easy to bloom and other advantages, can replace the decabromodiphenyl oxide.
The selection of flame retardant should take account of many factors, such as compatibility with materials, cost performance, fire resistance, flame retardancy and so on. Different flame retardants have their own advantages in different application fields according to their flame retardant mechanism and matching degree with flame retardant materials.
Blind substitution is not only unnecessary, but may increase new risks. Compared with the long time risk assessment data, brominated flame retardants, other types of flame retardants, and their effects on environment are less studied. A recent study by the University of Amsterdam also showed that the substitute for halogen flame retardants often lacked sufficient ecotoxicity test data.
Recently, the European Chemicals authority (ECHA) risk assessment committee (RAC) agreed with the proposal put forward by Ireland that the flame retardant TDCP (Tris[2-chloro-1- (chloromethyl) ethyl]phosphate) - three (1, 3 - two chloropropyl) phosphate ester should be included in the EU carcinogen classification.
It is reported that TDCP is used as a flame retardant, widely used in PVC resin, polyurethane foam, epoxy resin, phenolic resin and all kinds of fibers, and its flame retardant effect is obvious. Previously, the substance did not belong to any material classification defined by the European Union.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
The flame retardant PVC resin is mostly in halogen containing compounds based flame retardant, produce smoke, toxic, corrosive gases to the production, application and environment from the two disaster and the international debate on dioxin and other reasons, makes this kind of PVC resin flame retardant in flame retardant despite the current stage is still a pivotal position, but people are looking for this kind of flame retardant alternatives, namely halogen-free flame retardant.
Red phosphorus is one of them, but because of its color, so its application in light products limited, at the same time it can release toxic phosphine. On the contrary, halogen-free intumescent flame retardant can not only give better comprehensive balance for properties of flame retardant materials, but also have wide applicability in color. Therefore, halogen-free intumescent flame retardant technology has been gradually taken seriously. The halogen-free intumescent flame-retardant white PVC is still in the basic research stage. The white flame-retardant PVC in the international market is just entering the production stage.
Since 80s, launched by the red phosphorus as flame retardant A3X series products. KR4455, launched in 1995, is a flame retardant PVC product with inorganic hydroxide as flame retardant. Because it improves the interface characteristics of inorganic filler and matrix resin, it makes up for the effect of such flame retardants on the mechanical properties of materials. In other flame-retardant varieties, BASF also introduced melamine compounds as the product of the flame retardant system KR4205. The launch of the red phosphorus as flame retardant PVC resin containing color. Some products are made of character, so the red phosphorus in sometimes may also be restricted.
A kind of flame retardant PVC copolymer Latalnid68 HZVOH is suitable for the production and application of electrical and electronic thin film products. Its processability and fire resistance are good, so it can be used for connectors, micro socket and so on.
The composite materials of flame-retardant PVC abroad have also been studied. A flame retardant PVC packaging materials, brand name Staticule MPP, it can control the development of electrostatic products made by metal and curing process of flame retardant and eliminate static charge, this new film used for making a roll, belt, shield and cloth etc..
Tris(2-chloroisopropyl)Phosphate(TCPP)
Tris(2-chloroisopropyl)Phosphate(Flame retardant TCPP) is a colorless or yellowish oily liquid. It is soluble in benzene, alcohol, carbon tetrachloride and other organic solvents, but insoluble in water and aliphatic hydrocarbons. Its relative density is 1.27-1.31, refractive index is 1.4916 ( 21.5 ), viscosity is 58mm2 / S, chlorine content is 32.8%, and phosphorus content is 9.5%. As the molecule contains phosphorus and chlorine element simultaneously, its flame retardant properties is significant, as well as the plasticization, damp-proof, antistatic effects and so on. Tris(2-chloropropyl) phosphate (TCPP) is an additive flame retardant.
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.
In addition, in the complex, complex Rhodia has developed a variety of flame retardant PVC, mainly organic phosphorus as flame retardant products, ehnyl C52G3MZ25 etc.. Edward D.W and so on have studied the application of iron compounds in halogen-free flame retarded polyvinyl chloride. They mainly use inorganic iron compounds, polyphenylene oxide and zinc borates to increase the content of carbon compounds, so as to improve the effect of flame retardancy.
Piete Gijsman et al. Studied melamine cyanurate in PVC resin and PVC resin 6 "flame retardant mechanism of the difference, they think the main degradation products of polyvinyl chloride resin 6 is already in amine, and the main degradation products of polyvinyl chloride resin is cyclopentanone, that effect of MC in PVC resin than in PVC the resin 6 is good, they also proved that MC in PVC resin 6 and polyvinyl chloride resin at 350-450 deg.c occurs is a chemical reaction.
Based on this, in recent years, people developed a new type of PVC resin flame retardant ten bromo two benzene ethane, with ten PBDEs as high bromine content and good flame retardant efficiency, but it has good thermal stability and light stability, and not easy to bloom and other advantages, can replace the decabromodiphenyl oxide.
The selection of flame retardant should take account of many factors, such as compatibility with materials, cost performance, fire resistance, flame retardancy and so on. Different flame retardants have their own advantages in different application fields according to their flame retardant mechanism and matching degree with flame retardant materials.
Blind substitution is not only unnecessary, but may increase new risks. Compared with the long time risk assessment data, brominated flame retardants, other types of flame retardants, and their effects on environment are less studied. A recent study by the University of Amsterdam also showed that the substitute for halogen flame retardants often lacked sufficient ecotoxicity test data.
Recently, the European Chemicals authority (ECHA) risk assessment committee (RAC) agreed with the proposal put forward by Ireland that the flame retardant TDCP (Tris[2-chloro-1- (chloromethyl) ethyl]phosphate) - three (1, 3 - two chloropropyl) phosphate ester should be included in the EU carcinogen classification.
It is reported that TDCP is used as a flame retardant, widely used in PVC resin, polyurethane foam, epoxy resin, phenolic resin and all kinds of fibers, and its flame retardant effect is obvious. Previously, the substance did not belong to any material classification defined by the European Union.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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