Thin-walled antistatic halogen-free flame retardant PC/ABS (polycarbonate/acrylonitrile-butadiene-styrene) composition and preparation method thereof

Abstract

The invention discloses a thin-walled antistatic halogen-free flame retardant PC/ABS (polycarbonate/acrylonitrile-butadiene-styrene) composition and a preparation method thereof. The antistatic PC/ABS composition comprises, by weight, 50-70 parts of PC resin, 8-12 parts of ABS resin, 1-3 parts of toughening agents, 10-14 parts of flame retardants, 10-20 parts of antistatic mother substances and 0.4-1 part of other auxiliaries. The self-made efficient antistatic mother substances, antistatic agents and conductive carbon black are kneaded, polycaprolactam serves as a carrier, and the prepared antistatic halogen-free flame retardant PC/ABS composition has permanent antistatic effects, high flowability and high toughness and thin-walled flame resistance, is simple in processing flow and can be used for injection molding of various thin-walled antistatic flame retardant products.

Description

technical field [0001] The invention belongs to the technical field of PC / ABS alloy materials, and in particular relates to a thin-walled antistatic halogen-free flame-retardant PC / ABS composition and a preparation method thereof. Background technique [0002] PC / ABS alloy material is a composition with excellent performance, which has good physical properties, high toughness and fluidity, and high insulation. It is widely used in household appliances, electronic appliances, electric tools and other industries. However, because of its poor flame retardancy and high insulation, the method of adding modifiers is usually used to improve flame retardancy and electrical insulation. The antistatic effect can generally be achieved in two ways, one is special treatment on the surface of the product, and the other is by adding a conductive or antistatic agent to form a conductive path on the surface of the material, which is conducive to the migration of charges, thereby eliminating ...

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Problems solved by technology

However, in the existing technology, it is basically aimed at conventional products, and it is difficult to achieve unification of antistatic effect, flame retardancy, and thin wall to meet the comprehensive performance requirements

[0003] Patent CN201510818034.6 uses multi-walled carbon nanotubes and hyperbranched polyester quaternary ammonium salts to graft, and polycarbonate is used as a carrier to prepare antistatic masterbatches. When added to the PC / ABS combination, the fluidity is low and cannot meet the requirements of thin walls. Molding and processing of materials, and the preparation process is complex

Patent CN201610899010.2 uses a single antistatic agent (polyether ester amide, glyceryl stearate and copolyester amide) to prepare a halogen-free flame-retardant PC / ABS composition, and the antistatic effect can only reach 10 9 , and thin-walled 1.5mmV0 flame retardant, failed to achieve high fluidity

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