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Method of preparing heat-resistant ABS polymer by continuous noumenon method

A polymer, heat-resistant technology, applied in the field of polymer chemistry, which can solve problems such as compatibility problems, unmentioned compatibility problems, etc.

Active Publication Date: 2007-10-24
中国中化股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention thinks that although the two-phase compatibility improvement stated in MTC’s patent US 4808661 is reasonable, it is not the key factor to obtain balanced performance. Otherwise, use heat-resistant SAN containing PMI and a rubber-grafted PMI-free matrix If the phases are mixed, there will be compatibility problems, but the actual situation is not the case, and many of the aforementioned patents have not mentioned the compatibility problems caused by the difference in PMI in the two phases

Method used

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  • Method of preparing heat-resistant ABS polymer by continuous noumenon method
  • Method of preparing heat-resistant ABS polymer by continuous noumenon method
  • Method of preparing heat-resistant ABS polymer by continuous noumenon method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] The reaction system of this embodiment adopts four reactors in series, and the process mode in which all the materials are added to the first reactor.

[0084] Add 20kg of ethylbenzene and 47.97kg of styrene to the rubber dissolving tank, start stirring, and add 8kg of Asahi AsapreneTM 730AX rubber cut into 10*10mm into the rubber dissolving tank through the glue inlet, and stir and dissolve at room temperature for 8 hours. Then add 18.85kg of acrylonitrile, 3kg of nitrogen phenyl maleimide, continue dissolving for 3 hours, then add 1.40% of white oil, 0.30% of antioxidant 3,5-tert-butyl-4-hydroxyl-phenyl - Octadecyl ester, 0.35% chain transfer agent dimerized a-methyl styrene, 0.015% initiator tert-butyl perbenzoate, and continued to stir and disperse for 30 minutes.

[0085] The feed rate of the reactor is 1540mL / h; the system pressure is controlled between 0.9MPa; the reaction temperature of the four reactors is 92°C; 110°C; 117°C; 150°C; the stirring speed of the re...

Embodiment 2

[0090] The reaction system of this embodiment adopts five reactors, and part of the material (main feed) is added to the first reactor; part of the material (secondary feed) is added to the grafting reactor to obtain a certain degree of grafting and achieve phase inversion. , and then added to the subsequent third reactor.

[0091] Add 20kg of ethylbenzene and 46.50kg of styrene to the rubber dissolving tank, start stirring, and add 10.94kg of Asahi AsapreneTM 730AX rubber cut into 10*10mm into the rubber dissolving tank through the glue inlet, and stir to dissolve at room temperature for 8 hours. Then add 15.50kg of acrylonitrile, 5kg of nitrogen phenyl maleimide, continue dissolving for 3 hours, then add 1.40% of plasticizer white oil, 0.30% of antioxidant 3,5-tert-butyl-4-hydroxy -Phenyl-octadecyl ester, 0.35% chain transfer agent dimerized a-methyl styrene, 0.015% initiator tert-butyl perbenzoate, and continued to stir and disperse for 30 minutes.

[0092] The main feed r...

Embodiment 3

[0099] The reaction system of this embodiment adopts five reactors, and part of the material (main feed) is added to the first reactor; part of the material (secondary feed) is added to the grafting reactor to obtain a certain degree of grafting and achieve phase inversion. , and then added to the subsequent third reactor.

[0100] Add 20kg of ethylbenzene and 46.49kg of styrene to the rubber dissolving tank, start stirring, and add 10kg of Asahi AsapreneTM610A rubber cut into 10*10mm into the rubber dissolving tank through the glue inlet, and stir and dissolve at room temperature for 8 hours. Then add 15.50kg of acrylonitrile, 6kg of nitrogen phenyl maleimide, continue dissolving for 3 hours, then add 1.40% of plasticizer white oil, 0.30% of antioxidant 3,5-tert-butyl-4-hydroxy -Phenyl-octadecyl ester, 0.30% chain transfer agent dimerized a-methyl styrene, 0.015% initiator tert-butyl perbenzoate, and continued to stir and disperse for 30 minutes.

[0101] The main feed rate ...

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Abstract

The invention discloses a making method of heat-proof ABS polymer through continuous bulk method, which comprises the following steps: inputting main material; inputting secondary material; grafting main material to transform phase; grafting the secondary material to transform phase; blending main material and secondary material; obtaining the product with swelling index at 9-15, rubber content at 14-16% and grain size at 1-2um; fitting for heat-proof modification and accessory manufacturing in the automobile domain.

Description

technical field [0001] The invention relates to the field of macromolecule chemistry, in particular to a method for preparing heat-resistant ABS polymers by a continuous bulk method. Background technique [0002] ABS (acrylonitrile-butadiene-styrene) resin is an important general-purpose synthetic resin, composed of more than 50% styrene and variable amounts of butadiene and acrylonitrile. Among them, styrene provides hardness and ease of processing, acrylonitrile provides chemical resistance and thermal stability, and diene rubber provides toughness and impact strength. ABS resin has the characteristics of impact resistance, high rigidity, oil resistance, low temperature resistance, chemical resistance, excellent mechanical strength and electrical properties, etc., and is easy to process, stable in size and good in surface gloss. It is a thermoplastic engineering plastic with a wide range of uses. , can be used in the automotive industry, electronic appliances, instrumenta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F279/04C08F4/32
Inventor 田冶梁成锋韩强曾宪章
Owner 中国中化股份有限公司
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