Polycarbonate and acrylic nitrile-butadiene-phenylethylene grafted copolymer heat resisting and flame-retardant alloy

Abstract

The invention relates to an anti-flaming polycarbonate (called PC hereafter) and acrylonitrile-butadiene-styrene graft copolymer (called ABS hereafter) alloy resin, in particular a halogen-free PC and ABS graft copolymer fireproof anti-flaming alloy, and a preparation method thereof. The fireproof anti-flaming alloy comprises the following components as per weight percentage: 53-65 percent of PC, 12-24 percent of ABS resin, 6-18% of flame retardant, 3-12 percent of heat-resistance modifier, 0.6-3 percent of toughener, 0.1-1 percent of optothermal stabilizer and 0.6-3 percent of processing aids, wherein, the flame retardant is the combination of polyphenylene sulfide and organic phosphate flame retardant, and the processing aids include lubricant, coupling agent, antioxidant and processing lubricant aid. The invention uses the mutual matching between the S element contained in the polyphenylene sulfide and the P element contained in the flame retardant to reduce the dosage of the retardant, and improve the heat-resistance and deformation temperature.

Description

Technical field [0001] The invention relates to an alloy resin of flame-retardant polycarbonate (hereinafter referred to as PC) and acrylonitrile-butadiene-styrene graft copolymer (hereinafter referred to as ABS), in particular to a halogen-free polycarbonate And acrylonitrile-butadiene-styrene graft copolymer heat-resistant flame-retardant alloy and preparation method thereof. Background technique [0002] PC / ABS alloy is a heterogeneous multiphase system that combines the excellent properties of ABS and PC. On the one hand, it can improve the heat resistance, impact resistance and tensile properties of ABS, and replace ABS in high-performance fields; On the other hand, it can reduce the cost and melt viscosity of PC, improve fluidity, improve its processing performance, reduce the sensitivity of product internal stress and impact strength to product thickness, and replace PC for thin-walled and long-process product processing. A comprehensive polymer alloy. [0003] Numerous pa...

AI Technical Summary

Problems solved by technology

For example, although the flame retardancy of PC / ABS (PC:ABS=3:1) with 20 parts of phosphate flame retardant can reach UL-94VO of 1.6mm, its heat distortion temperature ranges from 110°C, which is not flame retardant, to 112°C reduced to less than 75°C

However, changing the molecular structure of PC requires updating the resin manufacturer to change the synthesis route or increase equipment, which requires a huge investment, and the price of this type of PC is high

However, the price of special types of flame retardants and synergistic flame retardants is relatively high, the amount of addition is large, and the cost performance is not satisfactory.

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