News Details
Flame retardant of polyethylene plastics
2017-11-16 15:31:56
Flame retardant of polyethylene plastics
Polyethylene is the most widely used and the largest amount of plastic, because of its low oxygen index, it is limited in wire, cable, coal and other fields.
Therefore, it is necessary to develop polyethylene flame retardant which meets the requirements of flame retardant. At present, the research direction of polyethylene plastic flame retardant is to develop a flame-retardant system with low filling capacity, good flame retardant effect, halogen-free, low smoke and low toxicity.
Early use of halogen containing three and two oxide antimony flame retardant system, burning a large amount of smoke and toxic, harmful, strong corrosive halide; without halogen, low smoke, low toxicity has been as the main development trend of flame retardant, the method is to add Al in the combustion system (OH) 3 or Mg (OH) 2 inorganic flame retardant, but the mixing volume of 50%~60% in general; if you can make a small amount of red phosphorus compound, Al (OH) 3 dosage reduction (from 50% to 10%). Because of low smoke, low toxicity, halogen free and antimony content, phosphorus flame retardants are also one of the ways to develop halogen-free flame retardants for polyethylene.
BL2 environmental protection flame retardant is non-toxic and contains some fertilizer ingredients. After spraying, it will not harm the growth of plants in the coming year, but will promote the growth of plants, and will not destroy the ecological environment. The most important thing is that the low cost of BL2 environmental protection flame retardant is an important prerequisite for its large use in forest and grassland fire prevention.
Six membered phosphorus phosphonate is a kind of six element phosphorus heterocyclic flame retardant, and it has additive and reactive type. Phosphorus containing compounds for condensation polymerization to form phosphorus containing polyesters.
The compound has good thermal stability, good oxygen resistance and low toxicity. It can be used in fabrics and public buildings of children's pajamas. The compound can be prepared by addition of the corresponding two substituted phosphite with unsaturated compounds. In addition, in the six membered phosphorus heterocyclic flame retardants, various substituted nitriles are also effective flame retardants.
There are many reports on the study of phosphorus containing spiro flame retardants. Spiro phosphorus flame retardant consists mostly of pentaerythritol and phosphorus compound was prepared, molecular generally contain large quantities of carbon containing two phosphorus atoms, so the high phosphorus content, flame retardant effect is good, can be used as intumescent flame retardant, widely used in various high polymer materials as flame retardant, stability and plasticity.
Because of their structural characteristics and wide uses, bicyclic caged phosphates have attracted more and more attention. Compounds can be prepared by transesterification, and used for flame retardant treatment of various polymers.
Like five element phosphorus heterocyclic compounds, seven element phosphorus heterocyclic flame retardants are rare. Bota Hiranosuke et al. Reported the synthesis of a new type of seven membered phosphate ester and its application as a flame retardant.
Tris (1,3-Dichloro-2-Propyl) Phosphate (Flame Retardant TDCPP)
CAS No.:13674-87-8
HS: 29199000
Tax Rate (%): 9%
Tris (1,3-Dichloro-2-Propyl) Phosphate (TDCPP) Raw Materials: Phosphorus Oxychloride, Epichlorohydrin
Tris (1,3-Dichloro-2-Propyl) Phosphate (Flame Retardant TDCPP) Use:
The Product Has A High Efficiency Flame Retardant, Low Volatility, High Thermal Stability, Water Resistance, Alkali Stable And Soluble In Most Organic Substances, Processing Performance, With Plastic, Moisture, Anti-Static, Anti-Pull, Anti-Compression Performance. Widely Used In Unsaturated Polyester, Polyurethane Foam, Epoxy Resin, Phenolic Resin, Rubber, Soft Polyvinyl Chloride, Synthetic Fibers And Other Plastics And Coatings At High Temperature Pyrolysis, Can Be Used As Emulsifier And Explosion-Proof Agent.
The number of repeat units containing polymeric phosphate flame retardant molecule, its high molecular weight, low vapor pressure, low toxicity, small mobility, good durability, and multi-function, flame retardant, plasticizer and antioxidant functions, mainly oligomers and polymers of two types, is organic in recent years phosphorus flame retardant is another important area of development.
In recent years, some new phosphates and their oligomers have been produced in industry. They are excellent in volatility, migration, thermal stability and hydrolytic stability. Some of them have been used in rubber, but the results are not ripe.
Polymer / inorganic nanocomposites, which were developed in 80s and 90s of last century, have opened up a new way to flame retardant polymer materials. Flame retardancy of nanocomposites has been hailed as the revolution of flame retardant technology in some foreign countries. A lot of polymers containing 3% ~ 5% modified montmorillonite, the cone calorimeter test heat release speed can be reduced from 50% to 70%, the quality loss rate can be reduced by 40% ~ 60%, thus greatly reducing the risk of small fire into the fire (heat release rate is the evaluation of the flammability of materials is an important index).
There are many polymers (including rubber) by flame retardant nanocomposites have been prepared modified montmorillonite nano composite material, and has become a new direction of flame retardant plastics and rubber, the domestic and foreign research upsurge of this is just unfolding.
However, the oxygen index and UL94V flame retardancy of the nanocomposites were not significantly improved. In order to make the material reaches a certain oxygen index and UL94V flame retardant, flame retardant nano composite material can be added a certain amount of flame retardant required at this time is not required Mengtuoshi containing nano polymer decreased, flame retardant can be required in the premise of achieve, maintain a better comprehensive performance of the material.
Silicon flame retardant mainly functional polysiloxane, polysiloxane copolymer and silicone composite material, this kind of flame retardant are only recently become a commodity sales, such as the United States, Japan RM4 series, XC-99-B5654 series, they are affected by heat or burning, can form the inorganic protective layer containing -Si-O- and / or -Si-C- key key the high flame retardant, low smoke to. Silicone flame retardant. If combined with IFR, the flame retardant can be remarkably improved. In addition, silicon flame retardant material can give good low-temperature impact toughness and good processability, has been used in some plastic, also can be used in rubber, but the price is high.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
Polyethylene is the most widely used and the largest amount of plastic, because of its low oxygen index, it is limited in wire, cable, coal and other fields.
Therefore, it is necessary to develop polyethylene flame retardant which meets the requirements of flame retardant. At present, the research direction of polyethylene plastic flame retardant is to develop a flame-retardant system with low filling capacity, good flame retardant effect, halogen-free, low smoke and low toxicity.
Early use of halogen containing three and two oxide antimony flame retardant system, burning a large amount of smoke and toxic, harmful, strong corrosive halide; without halogen, low smoke, low toxicity has been as the main development trend of flame retardant, the method is to add Al in the combustion system (OH) 3 or Mg (OH) 2 inorganic flame retardant, but the mixing volume of 50%~60% in general; if you can make a small amount of red phosphorus compound, Al (OH) 3 dosage reduction (from 50% to 10%). Because of low smoke, low toxicity, halogen free and antimony content, phosphorus flame retardants are also one of the ways to develop halogen-free flame retardants for polyethylene.
BL2 environmental protection flame retardant is non-toxic and contains some fertilizer ingredients. After spraying, it will not harm the growth of plants in the coming year, but will promote the growth of plants, and will not destroy the ecological environment. The most important thing is that the low cost of BL2 environmental protection flame retardant is an important prerequisite for its large use in forest and grassland fire prevention.
Six membered phosphorus phosphonate is a kind of six element phosphorus heterocyclic flame retardant, and it has additive and reactive type. Phosphorus containing compounds for condensation polymerization to form phosphorus containing polyesters.
The compound has good thermal stability, good oxygen resistance and low toxicity. It can be used in fabrics and public buildings of children's pajamas. The compound can be prepared by addition of the corresponding two substituted phosphite with unsaturated compounds. In addition, in the six membered phosphorus heterocyclic flame retardants, various substituted nitriles are also effective flame retardants.
There are many reports on the study of phosphorus containing spiro flame retardants. Spiro phosphorus flame retardant consists mostly of pentaerythritol and phosphorus compound was prepared, molecular generally contain large quantities of carbon containing two phosphorus atoms, so the high phosphorus content, flame retardant effect is good, can be used as intumescent flame retardant, widely used in various high polymer materials as flame retardant, stability and plasticity.
Because of their structural characteristics and wide uses, bicyclic caged phosphates have attracted more and more attention. Compounds can be prepared by transesterification, and used for flame retardant treatment of various polymers.
Like five element phosphorus heterocyclic compounds, seven element phosphorus heterocyclic flame retardants are rare. Bota Hiranosuke et al. Reported the synthesis of a new type of seven membered phosphate ester and its application as a flame retardant.
Tris (1,3-Dichloro-2-Propyl) Phosphate (Flame Retardant TDCPP)
CAS No.:13674-87-8
HS: 29199000
Tax Rate (%): 9%
Tris (1,3-Dichloro-2-Propyl) Phosphate (TDCPP) Raw Materials: Phosphorus Oxychloride, Epichlorohydrin
Tris (1,3-Dichloro-2-Propyl) Phosphate (Flame Retardant TDCPP) Use:
The Product Has A High Efficiency Flame Retardant, Low Volatility, High Thermal Stability, Water Resistance, Alkali Stable And Soluble In Most Organic Substances, Processing Performance, With Plastic, Moisture, Anti-Static, Anti-Pull, Anti-Compression Performance. Widely Used In Unsaturated Polyester, Polyurethane Foam, Epoxy Resin, Phenolic Resin, Rubber, Soft Polyvinyl Chloride, Synthetic Fibers And Other Plastics And Coatings At High Temperature Pyrolysis, Can Be Used As Emulsifier And Explosion-Proof Agent.
The number of repeat units containing polymeric phosphate flame retardant molecule, its high molecular weight, low vapor pressure, low toxicity, small mobility, good durability, and multi-function, flame retardant, plasticizer and antioxidant functions, mainly oligomers and polymers of two types, is organic in recent years phosphorus flame retardant is another important area of development.
In recent years, some new phosphates and their oligomers have been produced in industry. They are excellent in volatility, migration, thermal stability and hydrolytic stability. Some of them have been used in rubber, but the results are not ripe.
Polymer / inorganic nanocomposites, which were developed in 80s and 90s of last century, have opened up a new way to flame retardant polymer materials. Flame retardancy of nanocomposites has been hailed as the revolution of flame retardant technology in some foreign countries. A lot of polymers containing 3% ~ 5% modified montmorillonite, the cone calorimeter test heat release speed can be reduced from 50% to 70%, the quality loss rate can be reduced by 40% ~ 60%, thus greatly reducing the risk of small fire into the fire (heat release rate is the evaluation of the flammability of materials is an important index).
There are many polymers (including rubber) by flame retardant nanocomposites have been prepared modified montmorillonite nano composite material, and has become a new direction of flame retardant plastics and rubber, the domestic and foreign research upsurge of this is just unfolding.
However, the oxygen index and UL94V flame retardancy of the nanocomposites were not significantly improved. In order to make the material reaches a certain oxygen index and UL94V flame retardant, flame retardant nano composite material can be added a certain amount of flame retardant required at this time is not required Mengtuoshi containing nano polymer decreased, flame retardant can be required in the premise of achieve, maintain a better comprehensive performance of the material.
Silicon flame retardant mainly functional polysiloxane, polysiloxane copolymer and silicone composite material, this kind of flame retardant are only recently become a commodity sales, such as the United States, Japan RM4 series, XC-99-B5654 series, they are affected by heat or burning, can form the inorganic protective layer containing -Si-O- and / or -Si-C- key key the high flame retardant, low smoke to. Silicone flame retardant. If combined with IFR, the flame retardant can be remarkably improved. In addition, silicon flame retardant material can give good low-temperature impact toughness and good processability, has been used in some plastic, also can be used in rubber, but the price is high.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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