Low odor low total carbon emanation PC/ABS alloy and preparing method thereof

A low-odor and odor-suppressing technology, applied in the field of polymer materials, can solve the problems of large differences, uneven pore size distribution, affecting the thermodynamic properties of materials, etc., and achieve the effect of excellent physical and mechanical properties and low odor characteristics.

Inactive Publication Date: 2008-07-02
SHANGHAI PRET COMPOSITES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Moreover, the amount of activated carbon added has a great influence on the mechanical properties of the material.
At the same time, because the size distribution of micropores in activated carbon is very uneven and the difference is huge, the largest pore size is as large as about 1000 angstroms, so other small and medium molecules and even some chain segments in the blend system are often adsorbed together at the same time, so that It also affects other thermodynamic properties of the material
Therefore, this method has little practical value

Method used

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Examples

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Embodiment Construction

[0039] Below in conjunction with embodiment, the present invention is described in further detail:

[0040] In embodiment and comparative example composite material formula, polycarbonate is the Lexan 141 that GE Company produces, and ABS is the GP22 that BASF Company produces, and compatibilizer ABS / PP graft (PP-g-MAH) is self-made, and PP is The S700 produced by Yangzi Petrochemical Company uses dicumyl peroxide (DCP) as the initiator. Primary antioxidant is tetrakis [beta-(3,5-di-t-butyl 4-hydroxyphenyl) propionate] pentaerythritol ester, Swiss Ciba company produces, trade mark is Irganox 1010, and auxiliary antioxidant is three (2, 4-di-tert-butylphenol) phosphite is produced by Ciba company in Switzerland, and the trade mark is Irganox 168. The lubricant is N,N'-ethylene bisstearamide (EBS).

[0041] Preparation of PP-g-MAH: dry-mix ABS70%, PP30%, maleic anhydride (MAH) 1.5%, initiator 1%, stearic acid 0.4% in a high-speed mixer for 3 to 5 minutes and enter into twin-scre...

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PUM

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Abstract

The invention relates to a PC / ABS alloy material with low odor and low total carbon transpiration, ingredients (weight percentage) of which are that: 50-80 percent of polycarbonate, 10-45 percent of ABS / PP graft, 0.1-5.0 percent of odor master batch, 0.1-1.0 percent of antioxidant, 0.1-1.0 percent of lubricant and 0-5.0 percent of other addition agent. Compositions (weight percentage) of odor master batch in the method are 20-70 percent of matrix resin ABS and 30-80 percent of odor inhibitor. The preparation method thereof is that: the matrix resin and the odor inhibitor are put into a twin-screw extruder; odor master batch of high concentration is made by melting, extruding and pelleting; finally, when the PC / ABS alloy material is formed, the PC / ABS alloy material is mixed evenly with alloy material for forming. The method has the advantage that forming and processing of the composite material are not impacted and comprehensive physical and chemical properties are excellent and odor characteristic is good.

Description

technical field [0001] The invention relates to the preparation of a polycarbonate / acrylonitrile-butadiene-styrene copolymer alloy (PC / ABS alloy) material with low odor and low total carbon emission, which can be used to have a better effect on odor and total carbon emission performance. High-demand automotive parts, home appliance parts, etc., belong to the technical field of polymer materials. Background technique [0002] Polycarbonate (PC) has good transparency, high heat resistance, good light stability, and good dimensional stability. It is the engineering plastic with the best toughness, but it is sensitive to gaps, the product has high internal stress, high melt viscosity, and poor fluidity. Forming is difficult. Acrylonitrile-butadiene-styrene copolymer resin (ABS) is a general-purpose thermoplastic resin with excellent impact resistance and good molding and processing properties. It has a high performance / price ratio and is easy to electroplate and machine. Dimen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00B29C47/92B29B9/12C08L55/02B29C48/40B29C48/92B29C48/95
CPCB29C48/04B29C48/40B29C48/95
Inventor 张鹰张祥福周文
Owner SHANGHAI PRET COMPOSITES
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