PC/ABS alloy

A technology of ABS resin and alloy, which is applied in the field of PC/ABS alloy and its preparation, can solve the problems of limited electromagnetic shielding performance and poor flexibility

Active Publication Date: 2020-10-27
浙江华杰材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the electromagnetic shielding composite materials prepared by using graphene alone as a filler directly in resin and ceramics have poor flexibility, and the problem of graphene agglomeration also limits the improvement of electromagnetic shielding performance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A PC / ABS alloy, comprising the following raw materials in parts by weight: 60 parts of PC resin, 40 parts of ABS resin, 18 parts of electromagnetic shielding filler, 0.8 part of compatibilizer, 0.6 part of antioxidant, and 0.6 part of flame retardant.

[0032] Wherein, the compatibilizer is 3-(2,3-epoxypropoxy)propyltrimethoxysilane;

[0033] The antioxidant is N-cyclohexyl-N'-phenyl-p-phenylenediamine;

[0034] The flame retardant is bisphenol A-bis(diphenyl phosphate);

[0035] The electromagnetic shielding filler is a graphene nanofiber;

[0036] The preparation method of above-mentioned PC / ABS alloy is as follows:

[0037] Mix PC resin, ABS resin, electromagnetic shielding filler, compatibilizer, antioxidant, and flame retardant according to the formula, and then extrude and granulate through a twin-screw extruder; among them, the The specific process parameters are: the temperature of the first zone is 235°C, the temperature of the second zone is 245°C, the temp...

Embodiment 2

[0039] A PC / ABS alloy, comprising the following raw materials in parts by weight: 60 parts of PC resin, 40 parts of ABS resin, 18 parts of electromagnetic shielding filler, 0.8 part of compatibilizer, 0.6 part of antioxidant, and 0.6 part of flame retardant.

[0040] Wherein, the compatibilizer is 3-(2,3-epoxypropoxy)propyltrimethoxysilane;

[0041] The antioxidant is N-cyclohexyl-N'-phenyl-p-phenylenediamine;

[0042] The flame retardant is bisphenol A-bis(diphenyl phosphate);

[0043]The electromagnetic shielding filler is silicon-coated metal oxide nanomaterial; the silicon-coated metal oxide nanomaterial is prepared by the following method: adding nano-metal oxide to 20wt% ethanol aqueous solution, nano-metal oxide and 20wt% The mass ratio of ethanol aqueous solution is 0.8:50, ultrasonication for 10min; then dropwise add 20wt% ammonia solution, the mass ratio of 20wt% ammoniacal solution to 20wt% ethanol aqueous solution is 1.4:50, ultrasonication for 40min; add ethyl or...

Embodiment 3

[0047] A PC / ABS alloy, comprising the following raw materials in parts by weight: 60 parts of PC resin, 40 parts of ABS resin, 18 parts of electromagnetic shielding filler, 0.8 part of compatibilizer, 0.6 part of antioxidant, and 0.6 part of flame retardant.

[0048] Wherein, the compatibilizer is 3-(2,3-epoxypropoxy)propyltrimethoxysilane;

[0049] The antioxidant is N-cyclohexyl-N'-phenyl-p-phenylenediamine;

[0050] The flame retardant is bisphenol A-bis(diphenyl phosphate);

[0051] The electromagnetic shielding filler is silicon-coated metal oxide nanomaterial; the silicon-coated metal oxide nanomaterial is prepared by the following method: adding nano-metal oxide to 20wt% ethanol aqueous solution, nano-metal oxide and 20wt% The mass ratio of ethanol aqueous solution is 0.8:50, ultrasonication for 10min; then dropwise add 20wt% ammonia solution, the mass ratio of 20wt% ammoniacal solution to 20wt% ethanol aqueous solution is 1.4:50, ultrasonication for 40min; add ethyl o...

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PUM

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Abstract

The invention discloses a PC/ABS alloy and a preparation method thereof. The PC/ABS alloy is prepared from the following raw materials in parts by weight: 50 to 65 parts of PC resin, 15 to 45 parts ofABS resin, 10 to 20 parts of an electromagnetic shielding filler, 0.5 to 1 part of a compatilizer, 0.5 to 1 part of an antioxidant and 0.5 to 1 part of a flame retardant. The electromagnetic shielding filler adopts a silicon-coated metal oxide nano material; on one hand, the effective surface area of the electromagnetic shielding filler is increased, and on the other hand, the coated silicon dioxide shell is used as an interface, so that electromagnetic radiation is reflected and scattered for multiple times on the interface, and the electromagnetic shielding efficiency of the PC/ABS alloy isfurther improved.

Description

technical field [0001] The invention relates to the technical field of alloy materials, in particular to a PC / ABS alloy and a preparation method thereof. Background technique [0002] PC / ABS alloy is a composite material blended with polycarbonate (PC) and acrylonitrile-butadiene-styrene copolymer (ABS). It combines the excellent characteristics of the two materials. Sex, fluidity and chemical resistance, as well as the mechanical properties of PC, high impact strength, high heat distortion temperature and other properties, the color is no transparent particles, and is widely used in televisions, transformers, business machines, communication equipment and other fields. [0003] However, the widespread use of electronic and communication equipment today causes electromagnetic radiation pollution, which not only interferes with electronic equipment, adversely affects the efficiency and energy consumption of equipment, leads to sudden failure of processes, but also affects hum...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L55/02C08K7/06C08K5/5435C08K5/18C08K5/523C08K13/04C08K13/06C08K9/10C08K3/36C08K3/22C08K3/02
CPCC08L69/00C08K2201/011C08K2003/2272C08K2003/2293C08K2003/026C08L2201/08C08L55/02C08K7/06C08K5/5435C08K5/18C08K5/523C08K13/04C08K13/06C08K9/10C08K3/36C08K3/22C08K3/02
Inventor 袁峰
Owner 浙江华杰材料科技有限公司
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