Modified pc resin composite material for household appliances and preparation method thereof

Abstract

The invention provides a modified PC (polycarbonate) resin composite material used for household appliances and a preparation method. The composite material comprises the following components in parts by weight: 78-88 parts of PC, 3-7 parts of MBS (methyl methacrylate-butadiene-styrene), 2-5 parts of TiO2, 8-12 parts of glass fibers, 0.1-0.2 part of flame retardants, 0.2-0.3 part of anti-dripping agent, 0.1-0.2 part of antioxidants, 0.1-0.2 part of light stabilizers and 0.3-0.8 part of dispersing agent. The composite material has the beneficial effects that the glass fibers are used for improving the heat resistance, strength and stress cracking resistance of PC; TiO2 is used as a filler, protects the inner layers of the PC resins from being damaged by ultraviolet rays, plays a role as a light screener, achieves the light-tight effect and simultaneously can improve the rigidity and wear resistance of the material; and the halogen-free flame retardants are used for accelerating carbon formation through catalyzing so as to form a dense carbon layer on the surface of PC to achieve the flame-retardant effect.

Description

technical field [0001] The invention belongs to materials for household electrical appliances, in particular to modified PC resin composite materials for TV sets and a preparation method. Background technique [0002] For the materials of household appliances, the requirements are generally stricter, and the requirements for the materials of TV casings are even stricter. Generally, there are the following requirements: first, it must be resistant to high temperature; second, it must meet the size and facilitate assembly; The burning effect; the fourth is to solve the problem of light transmission. Considering all aspects, PC (polycarbonate) is the first choice for TV materials, and has been widely used as the second largest engineering plastic. However, PC has high hygroscopicity, and it is easy to produce bubbles and silver wires during processing, and the products are easy to produce Residual internal stress, high sensitivity to notch, low fatigue resistance, poor frictio...

AI Technical Summary

Problems solved by technology

[0007] The invention provides a modified PC resin composite material and a preparation method for household appliances, which can solve the problems of flame retardancy and light transmission in the prior art, and also reduce production costs

Images