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ABS with high heat resistance and preparing process thereof

A technology with high heat resistance and heat resistance, applied in the field of polymer chemistry, it can solve the problems of difficult balance of processing performance and low introduction amount, and achieve the effect of flexible brand switching, stable product performance and low energy consumption.

Inactive Publication Date: 2016-07-20
SHANGHAI HUAYI POLYMER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] In order to solve the problems in the prior art that the amount of heat-resistant monomers introduced through bulk polymerization is low and the heat resistance, impact resistance, and processing performance are difficult to balance, the applicant proposed and implemented the introduction of heat-resistant monomers in the polymerization process. At the same time, a small amount of polymerizable monomer maleic anhydride (MAH) was introduced for multi-component copolymerization, and an unexpected effect was achieved: more heat-resistant monomer structural units can be introduced into the copolymer, so that the material has a higher Heat resistance and sufficient comprehensive performance, even when the apparent heat resistance Tg (glass transition temperature) is not improved, the actual application heat resistance of the material (Vicat heat resistance temperature or heat distortion temperature HDT) is significantly improved improve

Method used

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  • ABS with high heat resistance and preparing process thereof
  • ABS with high heat resistance and preparing process thereof

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Experimental program
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Effect test

Embodiment 1

[0038] The reaction system of this embodiment adopts four reactors connected in series, and all materials are added to the process mode in the first reactor.

[0039] Add 20kg of ethylbenzene and 47.97kg of styrene to the rubber dissolving tank, start stirring, and add 8kg of AsahiAsapreneTM730AX 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 18.55kg of acrylonitrile, 6.5kg of N-phenylmaleimide and 0.5kg of MAH, continue to dissolve for 2 hours, then add 1.40% of white oil, 0.30% of antioxidant 3,5-tert-butyl- 4-Hydroxy-phenyl-octadecyl ester, 0.35% of chain transfer agent dimerized α-methylstyrene, 0.015% of initiator tert-butyl perbenzoate, and continued to stir and disperse for 30 minutes.

[0040] The feed rate of the reactor is 1540mL / h; the pressure of the feed system is controlled between 0.8MPa and 0.9MPa; the reaction temperature of the four reactors is 90°C; 110°C; 120°C;...

Embodiment 2

[0046] The reaction system of this embodiment adopts four reactors connected in series, and all materials are added to the process mode in the first reactor.

[0047] Add 20kg of ethylbenzene and 47.97kg of styrene to the rubber dissolving tank, start stirring, and add 8kg of AsahiAsapreneTM730AX 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 18.55kg of acrylonitrile, 5.5kg of N-phenylmaleimide and 0.27kg of MAH, continue to dissolve for 2 hours, then add 1.40% of white oil, 0.30% of antioxidant 3,5-tert-butyl- 4-Hydroxy-phenyl-octadecyl ester, 0.35% of chain transfer agent dimerized α-methylstyrene, 0.015% of initiator tert-butyl perbenzoate, and continued to stir and disperse for 30 minutes.

[0048] The feed rate of the reactor is 1540mL / h; the pressure of the feed system is controlled between 0.8MPa and 0.9MPa; the reaction temperature of the four reactors is 90°C; 110°C; 118°C...

Embodiment 3

[0054] The reaction system of this embodiment adopts four reactors connected in series, and all materials are added to the process mode in the first reactor.

[0055] Add 20kg of ethylbenzene and 47.97kg of styrene to the rubber dissolving tank, start stirring, and add 8kg of AsahiAsapreneTM730AX 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 18.55kg of acrylonitrile, 3kg of N-phenylmaleimide and 0.6kg of MAH, continue to dissolve for 2 hours, then add 1.40% of white oil, 0.30% of antioxidant 3,5-tert-butyl-4 -Hydroxy-phenyl-octadecyl ester, 0.35% chain transfer agent dimerized α-methylstyrene, 0.015% initiator tert-butyl perbenzoate, and continued to stir and disperse for 30 minutes.

[0056] The feed rate of the reactor is 1540mL / h; the system pressure is controlled between 0.8MPa and 0.9MPa; the reaction temperatures of the four reactors are 92°C; 112°C; 118°C; 150°C; It is 120...

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Abstract

The invention discloses an ABS composition with high heat resistance.The ABS composition is composed of a rubber dispersion phase existing in the particle form and a styrene and acrylonitrile copolymer continuous phase.The composition contains a heat-resisting monomer, and Vicat softening point is higher than 112 DEG C.The composition further contains a maleic anhydride copolymer.The ABS composition prepared with the method has high heat resistance, low monomer residue level, lower energy consumption and more stable performance, and sufficient impact resistance and other general performances are maintained.

Description

technical field [0001] The invention belongs to the field of macromolecule chemistry, and in particular relates to a high heat-resistant ABS and a preparation process thereof. Background technique [0002] ABS resin refers to acrylonitrile-styrene-butadiene copolymer (the acronym of AcrylonitrileButadieneStyrene respectively), which is a thermoplastic polymer material with high strength, good toughness and easy processing. 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, stable in size and good in surface gloss. It is a thermoplastic material with a wide range of uses. However, in some application fields, especially in the fields of home appliances and automobiles, there is a high requirement for the heat resistance of ABS resin. In the field of home appliances, heat-resistant ABS resin is mainly used in microwave ovens, rice cookers,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F279/02C08F212/08C08F220/44C08F222/06C08F222/40
Inventor 石正金朱结东平建忠刘念唐来安
Owner SHANGHAI HUAYI POLYMER
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