Maleimide heat resisting composition and preparation

A technology of maleimide and composition, which is applied in the field of maleimide heat-resistant composition and its preparation, and can solve the problems of no polymerization method and slow reaction speed, etc.

Active Publication Date: 2009-08-12
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] US4757109 describes a process for synthesizing styrene, acrylonitrile, and maleimide terpolymers by emulsion polymerization, using an anionic emulsifier with good emulsifying ability in the range of pH 3 to 9, and the initiator adopts Redox system or azobisisobutyronitrile initiator, the patent pointed out that when azobisisobutyronitrile initiator is used, the reaction speed is slow, and the polymerization process is relatively simple, and there is no special discussion on the polymerization method

Method used

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  • Maleimide heat resisting composition and preparation
  • Maleimide heat resisting composition and preparation
  • Maleimide heat resisting composition and preparation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0150] Mix heat-resistant resin emulsion A1 with ABS emulsion B1 and the emulsion of additives at a ratio of 10:55:0.82, and add 100 parts of the mixed emulsion to the temperature of 65°C at 25°C under stirring In the aqueous solution of 300 parts of 5 ‰ of magnesium sulfate, maintain uniform feeding speed and finish adding in 30-35 minutes. After adding the emulsion, raise the temperature of the mixture to 95°C and maintain it for 1 hour before cooling down to complete the coagulation process. The condensed slurry is filtered, washed with desalted water, and then dried to form a mixture of A1 and B1. Mix 65 parts of dried A1 and B1 mixture with 35 parts of C2 and 0.80 parts of blending aid in a high-speed blender. The blend can be passed through a twin-screw extruder to obtain a heat-resistant resin composition product. The performance of the product is shown in Table 2.

Embodiment 2

[0152]Mix heat-resistant resin emulsion A2 with ABS emulsion B1 and the emulsion of additives at a ratio of 25:50:0.80, and add 100 parts of the mixed emulsion to 100 parts at 60°C under stirring at 30°C In the aqueous solution of magnesium sulfate of 2‰, maintain a uniform feeding speed and finish adding within 30 to 35 minutes. After adding the emulsion, raise the temperature of the mixture to 97°C and maintain it for 1 hour before cooling down to complete the coagulation process. The condensed slurry is filtered and washed with desalted water, then dried and set aside. Mix 75 parts of dried A2 and B1 mixture with 25 parts of C1 and 0.80 parts of blending aid in a high-speed blender. The blend can be passed through a twin-screw extruder to obtain a heat-resistant resin composition product. The performance of the product is shown in Table 2.

Embodiment 3

[0154] Mix the heat-resistant resin emulsion A3 with the emulsion of ABS emulsion B1 and additives according to the ratio of 35:40:1.20, and add 100 parts of the mixed emulsion continuously to the 500°C at 70°C under stirring In the aqueous solution of magnesium sulfate of 8‰, maintain a uniform feeding speed and finish adding within 30 to 35 minutes. After adding the emulsion, raise the temperature of the mixture to 100°C and maintain it for 1 hour before cooling down to complete the coagulation process. The condensed slurry is filtered and washed with desalted water, then dried and set aside. Mix 75 parts of dried A3 and B1 mixture with 25 parts of C3 and 0.80 parts of blending aid in a high-speed blender. The blend can be passed through a twin-screw extruder to obtain a heat-resistant resin composition product. The performance of the product is shown in Table 2.

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Abstract

The invention relates to a maleimide heat-resistant resin composition and a preparation method thereof. The resin composition comprises 10-65 parts of maleimide heat-resistant resin, 30-55 parts of a graft polymer of a conjugated diene rubber graft aryl ethylene unit and a nitrile vinyl unit and 5-35 parts of a binary copolymer of aryl ethylene monomers and nitrile vinyl monomers. The maleimide heat-resistant resin composition prepared by the method has the advantages of nice appearance and high heat resistance, and the resin composition is a heat-resistant material with excellent properties. The prepared heat-resistant resin can be widely used in heat resistance and modification of such materials as ABS, PC, PBT and the like. As a material with excellent heat-resistant property, the resin composition can be used alone for preparing high heat-resistant parts of automobiles and household electrical appliances.

Description

technical field [0001] The invention relates to a heat-resistant resin composition and a preparation method thereof, in particular to a heat-resistant maleimide composition and a preparation method thereof. Background technique [0002] Free radical copolymers of maleimide monomers have attracted extensive attention because of their molecular chains containing planar five-membered ring structures, which can effectively inhibit chain rotation and thus have high structural rigidity and thermal stability. Among them, there are many studies on the copolymers of maleimide monomers and aryl vinyl monomers. Terpolymers of maleimide monomers, especially aryl vinyl monomers (AEM) and nitrile vinyl monomers (NEM) [0003] The preparation of ultra-high heat-resistant ABS resin includes alloy method and copolymerization modification method, among which copolymerization modification method is a better technical route. The alloy method mainly refers to the PC / ABS alloy. The copolymeriz...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L25/00C08L35/06C08L51/04C08F212/02C08F222/40C08F2/24C08F2/38C08F279/02
Inventor 荔栓红付含琦李锦山武爱军龚光碧李怀宁李树毅李炳泉艾纯金丛日新于奎
Owner PETROCHINA CO LTD
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