Hydrolysis-resistant PC-ABS alloy

A PC-ABS, hydrolysis-resistant technology, used in the field of composite materials, can solve the problems of pulverization, hydrolysis resistance, easy water absorption and decomposition, etc., and achieve good bending strength and mechanical impact strength, not easy to embrittlement and pulverization, not easy to hydrolysis. Effect

Active Publication Date: 2017-09-22
SUZHOU SUNWAY POLYMER
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

PC-ABS contains PC components. The carbonate bonds in PC are sensitive to moisture and are easy to absorb and decompose. Even a small amount of moisture will cause degradation at high temperatures, resulting in discoloration of the resin, a sharp drop in molecular weight, and poor product performance.
[0003] At the current level of technology, there are already many PC-ABS alloys, but these materials all have fatal defects, that is, they are not resistant to hydrolysis.
In areas with high environmental humidity, such as Hainan, after 1-2 years of natural storage and use, these materials will become severely embrittled and pulverized due to water absorption, which will affect the use

Method used

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Embodiment Construction

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0023] Weigh the raw materials according to the formula amounts of each embodiment in the following table 1, add the weighed samples into the high mixer, rotate at a speed of 1000 rpm, and mix for 20 minutes. After fully mixing, the premix is ​​obtained, and then the premix is The mixture is transferred to a twin-screw extruder, the extrusion temperature of the twin-screw extruder is 200°C, and the extrusion speed of the twin-screw extruder is 600 rpm, extruded and granulated to obtain hydrolysis-resistant PC-ABS alloy composites.

[00...

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Abstract

The invention discloses a hydrolysis-resistant PC-ABS alloy which is prepared from the following raw materials in parts by weight: 55-75 parts of PC resin, 10-20 parts of ABS resin, 0.5-2 parts of a random terpolymer, 0.3-1 part of cyclic carbodiimide and 0.05-0.2 part of a coupling agent. The PC-ABS alloy resists high temperature and high humidity, is difficult in hydrolysis, embrittling and pulverization and has better mechanical properties such as bending strength, mechanical shock strength.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a hydrolysis-resistant PC-ABS alloy. Background technique [0002] Plastic parts for automobiles are exposed to a certain humidity and temperature environment for a long time. When selecting materials, it is necessary to check whether the materials can still maintain good performance under high temperature and high humidity. PC-ABS contains PC components. The carbonate bonds in PC are sensitive to moisture and are easy to absorb and decompose. Even a small amount of moisture will cause degradation at high temperatures, resulting in discoloration of the resin, a sharp drop in molecular weight, and poor product performance. [0003] At the current technical level, there are already many PC-ABS alloys, but these materials all have fatal defects, that is, they are not resistant to hydrolysis. In areas with high environmental humidity, such as Hainan, after 1-2 years of n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L55/02C08L23/08C08L83/06C08L75/02C08L75/04C08K5/521
CPCC08L69/00C08L2201/08C08L2205/035C08L55/02C08L23/0892C08L75/04C08K5/521C08L83/06C08L75/02
Inventor 任俊余林华
Owner SUZHOU SUNWAY POLYMER
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