Inflaming retarding acrylonitrile butadiene styrene (ABS)/copolyester alloy, preparation method thereof and product thereof

Abstract

The invention discloses an inflaming retarding acrylonitrile butadiene styrene (ABS) / copolyester alloy, a preparation method of the inflaming retarding ABS / copolyester alloy and a product of the inflaming retarding ABS / copolyester alloy. The inflaming retarding ABS / copolyester alloy comprises, by weight, 50 parts-99 parts of ABS, 1 part-50 parts of copolyester resin, 5 parts-44 parts of flame retardant, 1 part-40 parts of flame retardant synergist, 0 part-50 parts of additive, 0 part-100 parts of filler, and 0 part-10 parts of other assistant agents, wherein the sum of parts of the flame retardant and parts of the flame retardant synergist is 20-45, the flame retardant synergist is ammonium salt with at least one ammonium (NH4+), and other additives are charring agents and / or stabilizing agents. According to the inflaming retarding ABS / copolyester alloy, the preparation method of the inflaming retarding ABS / copolyester alloy and the product of the inflaming retarding ABS / copolyester alloy, inflaming retarding efficiency of hypophosphite or alkyl group hypophosphite flame retardant in the inflaming retarding ABS / copolyester alloy can be greatly improved by reasonable selection of the flame retardant synergist, usage amount of the hypophosphite or alkyl group hypophosphite flame retardant in the inflaming retarding ABS / copolyester alloy is greatly reduced, and thus ABS / copolyester is enabled to reach a high flame retardant rating under the condition that additive amount of the flame retardant is small.

Description

technical field [0001] The invention relates to the field of flame retardant polymers, in particular to a flame retardant ABS / copolyester alloy and a preparation method and product thereof. Background technique [0002] In the existing flame-retardant modified ABS / copolyester, in order to meet the requirements of non-halogenation, it is necessary to select phosphorus, nitrogen or their compound systems. The most commonly used phosphorus-containing flame retardants and their compositions mainly include microencapsulated red phosphorus, phosphoric acid esters, and intumescent flame-retardant systems mainly composed of ammonium polyphosphate. These flame retardant systems all achieve flame retardancy through a solid phase mechanism. Compared with the traditional bromine-antimony compound flame retardant system, the phosphorus-containing flame retardant with solid phase flame retardant mechanism and its compound flame retardant system have the disadvantage of low flame retardan...

AI Technical Summary

Problems solved by technology

Compared with the traditional bromine-antimony compound flame retardant system, the phosphorus-containing flame retardant with solid phase flame retardant mechanism and its compound flame retardant system have the disadvantage of low flame retardant efficiency

[0003] Phosphinate is a kind of phosphorus-containing flame retardant that can act in the gas phase, but it also has the problem of low flame retardant efficiency. When no flame retardant synergist is compounded, it is necessary to add a large amount of phosphinate to achieve UL94V -0 flame retardant

Patents CN1660857B and CN100348653C disclose a combination of alkyl phosphinates compounded with amine-based ring-shaped flame retardant synergists. Although these flame retardant synergists can play a synergistic effect to a certain extent, their The degree of synergy is limited, and therefore the amount of phosphinate is still high, which greatly increases the cost of the flame retardant composition

Images