News Details
Ideal flame retardant
2017-10-4 14:14:06
The ideal flame retardant should start to activate when the temperature is slightly below the polymer decomposition temperature. This flame retardant can promote the coking, in order to reduce the generation of polymer of combustible gas may be produced, or, flame retardant can be mixed with potential combustible vapor, and prevent the people or burning.
When the flame retardant of halogen is used alone in plastic, its flame retardant performance is limited, but if it is added to antimony compounds, it can greatly increase its flame-retardant effect. Moreover, the amount of halide can be reduced under the same flame retardant effect. There are several commercially available antimony compounds, the most common of which are antimony trioxide.
The colloidal oxidation of antimony is especially suitable for fiber industry. Because it doesn't have a bad effect on the fibers, or it doesn't interfere with the spinning process. For linear polyester, sodium antimonate is the best antimony synergist. Mixed metal antimony compounds, like antimony oxide, have a better synergistic effect, but their prices are lower.
Flame-retardant chemicals can be divided into two types: one is additive type; One is reactive type. Additive flame retardants can be dispersed in the plastic matrix, but not bonding with the polymerized owner keys.
Reactive additives act as co-polymers and become a component of main resin by polymerization.
The additives flame retardant 3 hydrated alumina (ATH) emits water during the fire to cool the forward area of the flame. The thermal stability of ATH is limited to meet the required flame retardant requirements and must be used in large quantities. But because the material is cheap, it is the largest single-component flame retardant in the United States.
The ATH does not produce smoke and is not toxic, so it can be used for unsaturated polyester, epoxy resin, polyurethane, and certain wires and cables. Halogen compounds are much more expensive than ATH, but with a small amount, they can have good flame retardant effects. Therefore, the use of this type of flame retardants is cost-effective.
Trimethyl phosphate (TMP) use is mainly used in medicine, pesticides, solvents and extractants, used as a solvent, extraction, determination of zirconium and GC stationary liquid, the ester is used in medicine and pesticide solvent and extractant. Pesticide intermediates. In Japan, Trimethyl phosphate use as anti stain of textile oil and polymer, flame retardant additive for lithium ion battery.
Trimethyl phosphate is currently the main market in India, mostly for textile auxiliaries, the products are mainly exported to Japan, South Korea, Thailand, India.
As of Trimethyl phosphate use need to do not understand, please contact us!
Polybrominated diphenyl ether (decabromodiphenyl ether, ocbromodiphenyl ether) is the most widely used flame retardant for this type of halogen compounds. These additives are cost-effective and suitable for HIPS, ABS and other styrene.
They are also used in various degrees for polyester, polyamide and polyolefins. However, due to their weak uv stability, surface frosting and some influence on plastic properties (such as reducing impact strength), they are not widely used in these plastics.
Bromide phthalates, whether liquid or solid, are not frost thermal stability of flame retardant, it can provide the ideal flame retardant effect, and for many different kinds of resin can improve the physical properties and flame retardant is a kind of ideal.
Some halogenated aromatic additives are polymer (e.g. brominated polystyrene, brominated polycarbonate). They can't afford frost. But because such additives are expensive, they are typically used only for high-performance engineering plastics. Chlorinated fatty hydrocarbons and brominated fatty hydrocarbons are used in a variety of plastics including PE, PVC, polyurethane foam and PP.
However, they are not widely used because of their low thermal stability and plasticization. The addition of hexachloroprene and cyclooctadiene is a stable and unplasticized variety, which can also be used in styrene and nylon.
Phosphorous compound additive. Phosphate ester additive is a traditional flame retardant for soft PVC and modified polyphenyl ether; Alkyl phosphate and halogenated phosphate are used in soft polyurethane, polyester, epoxy, and other special plastics.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
When the flame retardant of halogen is used alone in plastic, its flame retardant performance is limited, but if it is added to antimony compounds, it can greatly increase its flame-retardant effect. Moreover, the amount of halide can be reduced under the same flame retardant effect. There are several commercially available antimony compounds, the most common of which are antimony trioxide.
The colloidal oxidation of antimony is especially suitable for fiber industry. Because it doesn't have a bad effect on the fibers, or it doesn't interfere with the spinning process. For linear polyester, sodium antimonate is the best antimony synergist. Mixed metal antimony compounds, like antimony oxide, have a better synergistic effect, but their prices are lower.
Flame-retardant chemicals can be divided into two types: one is additive type; One is reactive type. Additive flame retardants can be dispersed in the plastic matrix, but not bonding with the polymerized owner keys.
Reactive additives act as co-polymers and become a component of main resin by polymerization.
The additives flame retardant 3 hydrated alumina (ATH) emits water during the fire to cool the forward area of the flame. The thermal stability of ATH is limited to meet the required flame retardant requirements and must be used in large quantities. But because the material is cheap, it is the largest single-component flame retardant in the United States.
The ATH does not produce smoke and is not toxic, so it can be used for unsaturated polyester, epoxy resin, polyurethane, and certain wires and cables. Halogen compounds are much more expensive than ATH, but with a small amount, they can have good flame retardant effects. Therefore, the use of this type of flame retardants is cost-effective.
Trimethyl phosphate (TMP) use is mainly used in medicine, pesticides, solvents and extractants, used as a solvent, extraction, determination of zirconium and GC stationary liquid, the ester is used in medicine and pesticide solvent and extractant. Pesticide intermediates. In Japan, Trimethyl phosphate use as anti stain of textile oil and polymer, flame retardant additive for lithium ion battery.
Trimethyl phosphate is currently the main market in India, mostly for textile auxiliaries, the products are mainly exported to Japan, South Korea, Thailand, India.
As of Trimethyl phosphate use need to do not understand, please contact us!
Polybrominated diphenyl ether (decabromodiphenyl ether, ocbromodiphenyl ether) is the most widely used flame retardant for this type of halogen compounds. These additives are cost-effective and suitable for HIPS, ABS and other styrene.
They are also used in various degrees for polyester, polyamide and polyolefins. However, due to their weak uv stability, surface frosting and some influence on plastic properties (such as reducing impact strength), they are not widely used in these plastics.
Bromide phthalates, whether liquid or solid, are not frost thermal stability of flame retardant, it can provide the ideal flame retardant effect, and for many different kinds of resin can improve the physical properties and flame retardant is a kind of ideal.
Some halogenated aromatic additives are polymer (e.g. brominated polystyrene, brominated polycarbonate). They can't afford frost. But because such additives are expensive, they are typically used only for high-performance engineering plastics. Chlorinated fatty hydrocarbons and brominated fatty hydrocarbons are used in a variety of plastics including PE, PVC, polyurethane foam and PP.
However, they are not widely used because of their low thermal stability and plasticization. The addition of hexachloroprene and cyclooctadiene is a stable and unplasticized variety, which can also be used in styrene and nylon.
Phosphorous compound additive. Phosphate ester additive is a traditional flame retardant for soft PVC and modified polyphenyl ether; Alkyl phosphate and halogenated phosphate are used in soft polyurethane, polyester, epoxy, and other special plastics.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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