Special plastic/acrylonitrile butadiene styrene (PC/ABS) alloy for notebook computer shell

A notebook computer and alloy technology, applied in the field of polymer alloys, can solve problems such as poor electroplatability, increased product weight, and insufficient surface scratch resistance, and achieve excellent impact resistance, improved hardness and scratch resistance performance effect

Active Publication Date: 2012-07-11
大河宝利材料科技(苏州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these products all have shortcomings such as insufficient surface scratch resistance, increased product weight, and poor electroplatability.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The present invention will be described in further detail below in conjunction with specific examples, but not limited to these examples.

[0021] The performance test of the halogen-free flame-retardant PC / ABS alloy material prepared by the present invention adopts the following methods or standards, and all test samples need to be stored at a temperature of 23°C ± 2 and a humidity of 50% ± 5% for no less than 16 hours :

[0022] Tensile strength: tested according to standard ASTM D638;

[0023] Flexural modulus: tested according to standard ASTM D790;

[0024] Notched impact strength: tested according to standard ASTM D256;

[0025] Heat distortion temperature: Tested according to the standard ASTM D648, the test condition is 1.82MPa, 3.2mm / min.

[0026] Flame retardancy: Tested according to the standard UL 94, the thickness of the sample is 1.2mm.

[0027] Pencil hardness: Tested according to the standard ASTM D785, the test condition is 500g.

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Abstract

The invention discloses a special plastic / acrylonitrile butadiene styrene (PC / ABS) alloy for a notebook computer shell. The formula comprises the following materials in parts by weight: 30-80 parts of polycarbonate, 5-65 parts of acrylonitrile-butadiene-styrene copolymer, 5-15 parts of compatilizer, 1-15 parts of flame retardant agent, 3-20 parts of filler, 1-10 parts of hardness modifier, 0.5-5 parts of anti-falling agent and 0-1 part of auxiliary agent. By adopting specific high-molecular polymers of polymethyl methacrylate (PMMA), ultrahigh-molecular polysiloxane and the like, the special PC / ABS alloy selects mineral fillers of specific-size mica, glass fiber and the like to carry out rematching therewith and generates synergistic effect, thus obviously improving the surface hardness and scraping resistance of the material and simultaneously having no influence on the other performances of the material. The PC / ABS alloy material has excellent impact resistance, surface scraping resistance and flame retardance, can meet the requirements of plastic for the notebook computer shell and has considerable promotion and application values.

Description

technical field [0001] The invention relates to a polymer alloy, in particular to a PC / ABS alloy specially used for notebook computer shells. Background technique [0002] The shell of a notebook computer is not only the most direct way to protect the body, but also an important factor affecting its cooling effect, weight, and aesthetics. Because the notebook computer has the characteristics of compact structure, strong mobility, and changeable use environment, the casing material is required to have high mechanical strength, scratch resistance, excellent high and low temperature impact resistance, good heat resistance, combustion resistance, light weight, Moreover, it has the characteristics of excellent formability, electroplating and low cost. [0003] Existing commercialized notebook computer plastic shells are mostly modified from polycarbonate (PC), acrylonitrile-butadiene-styrene copolymer (ABS) and other polymers, such as glass fiber modified PC, carbon fiber modifi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08L55/02C08L33/12C08L67/02C08L25/12C08L83/04C08L51/00C08K13/04C08K3/34C08K7/14
Inventor 罗煜郭旭平郭长华
Owner 大河宝利材料科技(苏州)有限公司
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