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Polycarbonate/ABS composition and its production

A technology of polycarbonate and composition, which is applied in the field of polycarbonate/ABS composition and its manufacture, can solve problems such as weak connection, poor compatibility, and decline in physical properties, and achieve the effect of increasing mechanical properties

Inactive Publication Date: 2007-01-17
MITAC PRECISION TECH CO LTD SHUNDE DISTRICT FOSHAN CITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the simple blend of PC / ABS has the disadvantage of poor compatibility
The solubility parameters of styrene-acrylonitrile (SAN) in PC and ABS are relatively close, and PC is 9.8 (cal / cm 3 ) 0.5 , SAN is 9.3~9.6(cal / cm 3 ) 0.5 , the compatibility of SAN and PC is better, however, PC is difficult to be compatible with polybutadiene in ABS, which will cause a weak connection between them and reduce the physical properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The parts by weight of the composition of the polycarbonate / ABS composition of the present embodiment are:

[0031] 30 parts of polycarbonate with a molecular weight of 20,000~200,000;

[0032] 60 parts of ABS with a rubber content of 20%~40%;

[0033] 9.8 parts of graft copolymers of butadiene and maleic anhydride with a graft ratio of 5% to 20%;

[0034] Tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]pentaerythritol ester / bis(2,4-di-tert-butylphenyl)pentaerythritol bis-diphosphite in a ratio of 1:1 0.2 part of ester.

Embodiment 2

[0036] The parts by weight of the composition of the polycarbonate / ABS composition of the present embodiment are:

[0037] 27 parts of polycarbonate with a molecular weight of 20,000~200,000;

[0038] 58 parts of ABS with a rubber content of 20%~40%;

[0039] 14 parts of graft copolymer of butadiene and maleic anhydride with a graft rate of 5%~20%:

[0040] Tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]pentaerythritol ester / bis(2,4-di-tert-butylphenyl)pentaerythritol bis-diphosphite in a ratio of 1:1 1 part of ester.

Embodiment 3

[0042] The parts by weight of the composition of the polycarbonate / ABS composition of the present embodiment are:

[0043] 35 parts of polycarbonate with a molecular weight of 20,000~200,000;

[0044] 54 parts of ABS with rubber content of 20%~40%;

[0045] 10.3 parts of graft copolymers of butadiene and maleic anhydride with a graft rate of 5% to 20%;

[0046] Tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]pentaerythritol ester / bis(2,4-di-tert-butylphenyl)pentaerythritol bis-diphosphite in a ratio of 1:1 0.7 part of ester.

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PUM

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Abstract

A polycarbonate / ABS composition and its production are disclosed. The composition consists of polycarbonate with molecular-weight 20,000-200,000 20-50 proportion, ABS with rubber content 20-40% 40-60 proportion, graft copolymer of butadiene and maleic anhydride with graft ratio 5-20% 3-15 proportion, and tetra(beta-(3,5-di-tert-4-hydroxyphenyl)methyl acetic acid)pentaerythritol ester / di(2,4-di-tert-phenyl)pentaerythritol bi(diphosphorous acid ester in proportion of 1:1 0.1-1 proportion. It has better interface compatibility and mechanical impact performance. It can be used for various formed plastic product.

Description

Technical field [0001] The invention relates to the field of polymer materials, in particular to a polycarbonate / ABS composition and a manufacturing method thereof. Background technique [0002] Polycarbonate (PC) has the advantages of high impact strength, creep resistance, good dimensional stability, heat resistance, transparency, non-toxicity, and good dielectric properties; but it also has poor processability, large internal stress in the product, and easy cracking. There are drawbacks like notch sensitivity, and it's expensive. Acrylonitrile / butadiene / styrene copolymer (ABS) has the advantages of good processing fluidity, easy surface decoration, and low price, but its impact strength is low and heat resistance is poor. [0003] Mixing PC and ABS to form a composition can achieve the effect of learning from each other. A PC / ABS alloy with better comprehensive properties is obtained. PC / ABS combines the excellent properties of PC and ABS. On the one hand, it improves ...

Claims

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Application Information

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IPC IPC(8): C08L55/02C08L69/00
Inventor 汪克风
Owner MITAC PRECISION TECH CO LTD SHUNDE DISTRICT FOSHAN CITY