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Heat-resistant ABS composition and preparation method thereof

A composition and heat-resistant technology, applied in the field of polymer chemistry, can solve the problems of difficult to balance processing performance, low introduction of heat-resistant monomers, etc., and achieve comprehensive performance balance, low yellowness index, Vicat heat resistance temperature or The effect of heat distortion temperature increase

Inactive Publication Date: 2017-01-04
SHANGHAI HUAYI POLYMER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The present invention provides a heat-resistant ABS composition in order to solve the problems in the prior art that the amount of heat-resistant monomers introduced through bulk polymerization is relatively low and the heat resistance, impact resistance and processability are difficult to balance.

Method used

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  • Heat-resistant ABS composition and preparation method thereof
  • Heat-resistant ABS composition and preparation method thereof
  • Heat-resistant ABS composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] First mix 100kg of bulk ABS with 100kg of heat-resistant agent consisting of 15 parts of AN, 25 parts of NPMI, 2 parts of MAH and 58 parts of styrene in a rotary mixer for 30 minutes, then take it out and pour it into the feeder in batches, and then It is continuously added to the heated twin-screw extruder at a feed rate of 50kg / h, and the emulsion poly ABS high-rubber powder is added at a feed rate of 5kg / h through the feed port of the extruder simultaneously. After melt blending, extrude and pelletize after cooling, the finished heat-resistant ABS can be obtained.

Embodiment 2

[0068] First mix 80kg of bulk ABS with 120kg of heat-resistant agent consisting of 10 parts of AN, 33.5 parts of NPMI, 3.5 parts of MAH and 63.0 parts of styrene in a rotary mixer for 30 minutes, then take it out and pour it into the feeder in batches, and then It is continuously added into the heated twin-screw extruder at a feed rate of 48kg / h, and the emulsion poly ABS high-rubber powder is added at a feed rate of 2kg / h through the feed port of the extruder simultaneously. After melt blending, extrude and pelletize after cooling, the finished heat-resistant ABS can be obtained.

Embodiment 3

[0074] First mix 120kg of bulk ABS with 80kg of heat-resistant agent consisting of 5 parts of AN, 30 parts of NPMI, 3 parts of MAH and 62 parts of styrene in a rotary mixer for 30 minutes, then take it out and pour it into the feeder in batches, and then It is continuously added into the heated twin-screw extruder at a feed rate of 17kg / h, and the emulsion poly ABS high-rubber powder is added at a feed rate of 3kg / h through the feed port of the extruder simultaneously. After melt blending, extrude and pelletize after cooling, the finished heat-resistant ABS can be obtained.

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Abstract

The invention provides a heat-resistant ABS composition and a preparation method thereof. The composition is composed of a polybutadiene rubber dispersion phase existing in a particle form and a copolymer continuous phase formed by copolymerizing styrene and acrylonitrile. The composition contains heat-resistant structure monomers and has Vicat heat-resistant temperature larger than 105 DEG C and preferably 105-112 DEG C. The composition also contains maleic anhydride polymer (MAH). Performance test results show that the ABS composition prepared through the method has higher heat-resistant temperature and lower monomer residues, and keeps enough impact resistance and yellowness. In the preparation process, raw material rubber is not specially limited. There are no special requirements for size and structure of rubber particles of the product, and industrial application prospects are wide.

Description

technical field [0001] The invention belongs to the field of polymer chemistry, and in particular relates to a high heat-resistant ABS composition and a preparation method thereof. Background technique [0002] ABS resin refers to acrylonitrile-styrene-butadiene copolymer (Acrylonitrile ButadieneStyrene, ABS), which is a thermoplastic polymer material with high strength, good toughness and easy processing. Among them, acrylonitrile (AN) structure provides rigidity and solvent resistance, butadiene (Butadiene) structure provides toughness, and styrene (Styrene) provides fluidity. Therefore, ABS resin has the characteristics of impact resistance, high rigidity, solvent resistance, low temperature resistance, excellent mechanical and electrical properties, and is easy to process and stable in size. It is a thermoplastic material with a wide range of uses. [0003] In some application fields, especially in the fields of household appliances and automobiles, there is a high requ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L55/02C08L35/00C08L25/12B29C47/92B29B9/10B29C48/92
Inventor 朱结东石正金唐来安刘念
Owner SHANGHAI HUAYI POLYMER
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