PC-ABS alloy for computer housing

Abstract

A PC-ABS (Acrylonitrile Butadiene Styrene) alloy for a computer housing is characterized by comprising the following constitutes in parts by weight: 70 parts of PC polycarbonate, 15 parts of ABS copolymer, 1-20 parts of flame retardant, 1-10 parts of stress cracking resisting agent, 1-10 parts of flexibilizer, 0.1-5 parts of flowable agent, wherein the flame retardant is at least one selected from triphenyl phosphate, tricresyl phosphate, bisphenol A diphosphonate cresyl diphenyl phosphate; the stress cracking resisting agent is at least one selected from ethyl- hydrogenised nitrile-acrylate ternary co-polymerized graft, and acrylic acid grafted polyolefin elastomer copolymer; the flexibilizer is at least one selected from ethylene-octane copolymer, ethylene-butane copolymer, ethylene-propene copolymer, and phenethylene-butadiene copolymer. The PC- ABS alloy improves gap impact strength performance and reduces complexity of the operation control.

Description

technical field [0001] The invention relates to a polymer alloy, in particular to a PC-ABS alloy for a computer casing. Background technique [0002] PC-ABS resin alloy is a mixture of polycarbonate and acrylonitrile-butadiene-styrene copolymer as the base material plus other copolymerized materials or fillers, also known as PC-ABS alloy, is a thermoplastic plastic. In the PC-ABS resin alloy, the content of PC is generally greater than 50%. The PC-ABS resin alloy combines the excellent characteristics of PC and ABS, including the formability of ABS material and the mechanical properties and impact strength of PC. And temperature resistance, anti-ultraviolet (UV) and other properties, for this reason, it is widely used in automotive interior parts, business machines, communication equipment, home appliances and lighting equipment in the prior art. PC-ABS resin alloys are also widely used in the manufacture of computers, especially notebook computer casings. Chinese invention...

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Problems solved by technology

[0017] In addition to the above-mentioned problems, the PC-ABS alloy for computer casings disclosed in ZL201010541575.6 has the biggest problem as a material for computer casings, which is that the embedded parts of the computer casings made of this PC-ABS alloy are very easy to break Moreover, local hot spots are easily deformed. The reason is that the notched impact strength of the PC-ABS alloy disclosed in ZL201010541575.6 is very low, and the heat distortion temperature is also low.

Another problem in the existing technology is that its composition is relatively complex, and there are many raw materials used. In order to ensure the performance index of the product, it is generally necessary to strictly control the source and performance of the raw materials in production. Obviously, the composition The increase of ingredients will bring complexity to the follow-up production control. In summary, it is obvious that there is a need for further improvement in the existing technology

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