Flame-retarding synergist and flame-retarding alkyl benzene sulphonate (ABS) prepared by flame-retarding synergist

Abstract

The invention discloses a flame-retarding synergist and flame-retarding alkyl benzene sulphonate (ABS) prepared by the flame-retarding synergist. The formula of the novel flame-retarding synergist includes 20-50 parts of talcum powder, 0.5-10 parts of inorganic silicate, 10-30 parts of organosilicon substance, 20-50 parts of antimony compound and 0.2-5 parts of dispersing agent. The novel flame-retarding synergist can completely and equivalently replace antimonous oxide in a bromine-antimony compound flame-retarding system and prepare the low-cost flame-retarding ABS. Compared with the flame-retarding ABS prepared by an existing antimonous oxide brominated flame-retarding synergist, the flame-retarding ABS is lower in cost, better in flame-retarding stability and reduction of combustion smoke density and simpler and more convenient to produce and use, and other mechanical properties are remained the same or have better technical effect.

Description

technology field; [0001] The invention relates to the technical field of flame retardant plastics, in particular to a flame retardant synergist for plastics. Background technique: [0002] Antimony is a metal with a wide range of uses, which meets the four major conditions of recognized strategic metals. It is known as "the hero of fire extinguishing and fire protection" and "metal hardener". It is widely used in flame retardant synergists, pigments, automobile batteries, and semiconductor fields. Especially used in the field of flame retardant mainly include: antimony trioxide, antimony pentoxide, antimony acetate, etc. They have almost no flame retardant performance when used alone as a flame retardant, but as a halogen flame retardant synergist, Especially brominated flame retardant synergists can greatly improve the performance of halogen flame retardants, so it is an indispensable synergist in almost all halogen flame retardants. Due to the unshakable main position o...

AI Technical Summary

Problems solved by technology

As a result, the price of antimony has risen steadily, leading to a sharp increase in the cost of the final flame-retardant products.

At the same time, there are two unfavorable factors in the halogen-antimony synergistic flame retardant system: high smoke production and toxic antimony oxide

Therefore, researchers have been sparing no effort to seek new synergists to replace antimony compounds, but until today halogenated flame retardants are still the most widely used flame retardants in the world except Western Europe. In recent years, humans have developed The flame retardant synergists that can partially replace antimony trioxide include zinc borate, zinc sulfide, zinc stannate, zirconium compounds and molybdenum compounds, although these substitutes have played a good flame retardant synergy in some flame retardant plastics effect, but on the one hand, these substitutes are expensive, on the other hand, they can only replace about 30% of antimony, and at the same time, the amount needs to be increased, which leads to low comprehensive mechanical properties

At the same time, due to the special structure of ABS resin itself, these flame retardant synergists that replace antimony trioxide have almost no flame retardant synergistic effect in various flame retardant ABS systems.

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