A PC/ABS composite material having chemical resistance at high temperature and a preparing method thereof

A technology of chemical resistance and composite materials, which is applied in the field of high-temperature chemical-resistant PC/ABS composite materials and its preparation, can solve problems such as poor chemical resistance, cracking of parts, discoloration, etc., and achieve improved chemical resistance and improved The effect of safety and excellent mechanical properties

Inactive Publication Date: 2018-11-30
WUHU CHUANGKE NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, PC / ABS materials are often used as molded parts in the form of skin texture. Due to their poor chemical resistance, when they come into contact with certain reagents, such as sunscreen, gasoline, etc., discoloration often occurs. cracking

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The high-temperature and chemical-resistant PC / ABS composite material of this embodiment is made of the following raw materials in parts by weight: 50 parts of modified PC resin, 40 parts of ABS resin, 8 parts of copolyester, 20 parts of polymethyl methacrylate, and 10 parts of filler 1 part, 3 parts of nucleating aid, 3 parts of hydroxypropyl methylcellulose, 2 parts of toughening agent, 1 part of silicone powder, 1 part of white mineral oil, 2 parts of compatibilizer;

[0025] Among them, the modified PC resin is obtained by modifying the PC resin with a macromolecular silane with a molecular weight ≥ 800,000, and the weight-average molecular weight of the PC resin is 10,000-40,000, and the glass transition temperature of the PC resin is 130°C; the ABS resin is Acrylonitrile-butadiene-styrene copolymer, in the acrylonitrile-butadiene-styrene copolymer, the weight percentage content of butadiene is 50%, the weight percentage content of acrylonitrile is 15%, the weight p...

Embodiment 2

[0031] The high-temperature and chemical-resistant PC / ABS composite material of this embodiment is made of the following raw materials in parts by weight: 85 parts of modified PC resin, 80 parts of ABS resin, 16 parts of copolyester, 35 parts of polymethyl methacrylate, and 20 parts of filler 8 parts, 8 parts of nucleating aid, 8 parts of hydroxypropyl methylcellulose, 5 parts of toughening agent, 3 parts of silicone powder, 3 parts of white mineral oil, 6 parts of compatibilizer;

[0032] Among them, the modified PC resin is obtained by modifying the PC resin with a fluoropolymer with a molecular weight ≥ 800,000, and the weight-average molecular weight of the PC resin is 10,000-40,000, and the glass transition temperature of the PC resin is 160°C; the ABS resin is Acrylonitrile-butadiene-styrene copolymer, in the acrylonitrile-butadiene-styrene copolymer, the weight percentage content of butadiene is 15%, the weight percentage content of acrylonitrile is 15%, the weight perce...

Embodiment 3

[0038]The high-temperature and chemical-resistant PC / ABS composite material in this example is made of the following raw materials in parts by weight: 68 parts of modified PC resin, 60 parts of ABS resin, 12 parts of copolyester, 27 parts of polymethyl methacrylate, and 15 parts of filler 5.5 parts of nucleating aid, 5.5 parts of hydroxypropyl methylcellulose, 3.5 parts of toughening agent, 2 parts of silicone powder, 2 parts of white mineral oil, 4 parts of compatibilizer;

[0039] Among them, the modified PC resin is obtained by modifying the PC resin with a macromolecular silane with a molecular weight ≥ 800,000, and the weight-average molecular weight of the PC resin is 10,000-40,000, and the glass transition temperature of the PC resin is 145°C; the ABS resin is Acrylonitrile-butadiene-styrene copolymer, in the acrylonitrile-butadiene-styrene copolymer, the weight percentage content of butadiene is 35%, the weight percentage content of acrylonitrile is 25%, the weight perc...

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Abstract

The invention provides a PC / ABS composite material having chemical resistance at high temperature and a preparing method thereof, relating to the technical field of polymer materials. The composite material is prepared from modified PC resin, ABS resin, copolyester, poly(methyl methacrylate), a filler, a nucleating auxiliary, hydroxypropyl methyl cellulose, a toughening agent, polysiloxane powder,white mineral oil, and a compatibilizer. The composite material has good chemical resistance at high temperature, and the modified PC resin improves compactness of a surface of the material, and is used for resisting corrosion of acids, alkalis and hot oil on a PC / ABS composite material substrate at high temperature, thus greatly improving chemical resistance at high temperature of the compositematerial. The composite material has excellent mechanical properties and adaptability in complex chemical corrosive environments, and is especially suitable for use in peripheral parts of engines to improve the safety of automobiles.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a high-temperature chemical-resistant PC / ABS composite material and a preparation method thereof. Background technique [0002] PC / ABS composite material combines the toughness and heat resistance of PC resin, and has the advantages of excellent low-temperature impact performance and processing fluidity of ABS resin. PC / ABS alloy material has become an ideal material for the selection of materials in the fields of automobiles, home appliances, and electronics. PC / ABS materials are often used as the first choice for automotive interior decoration parts such as central control panels, air outlet housings, and sub-dashboard panels. However, PC / ABS materials also have their disadvantages, such as poor weather resistance, wear resistance, and poor chemical resistance. Post-processing such as electroplating, painting, and water transfer printing endows the PC / ABS material wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L55/02C08L67/00C08L33/12C08L1/28C08L83/04C08L91/06
CPCC08L69/00C08L2201/08C08L2205/035C08L55/02C08L67/00C08L33/12C08L1/284C08L83/04C08L91/06
Inventor 李昆明王俊魏传刚黄小军
Owner WUHU CHUANGKE NEW MATERIAL TECH CO LTD
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