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Heat resisting resin composition and preparation thereof

A technology of heat-resistant resin and composition, applied in the field of maleimide-containing heat-resistant resin composition and preparation thereof, can solve the problems of no polymerization method, slow reaction speed and the like

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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  • Heat resisting resin composition and preparation thereof
  • Heat resisting resin composition and preparation thereof
  • Heat resisting resin composition and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0136] 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 add 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 C3 and 0.80 parts of blending aid in a high-speed blender (1400 rpm, blender for 3 minutes, the same below). 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

[0138] Mix the heat-resistant resin emulsion A2 with the emulsion of ABS emulsion B1 and additives at a ratio of 25:50:0.80, and add 100 parts of the mixed emulsion to 100 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 A1 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

[0140] 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 A1 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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PUM

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Abstract

The invention relates to a heat-resistant resin composition and a preparation method thereof. The resin composition comprises the following: 10 to 65 portions of maleimide heat-resistant resin, 30 to 55 portions of graft polymer of conjugated diene rubber grafted aryl ethylene unit body and nitrile vinyl unit, and 5 to 35 portions of biopolymer of aryl ethylene monomer and nitrile vinyl monomer. The heat-resistant resin composition prepared by the method for preparing the maleimide heat-resistant resin composition has the advantages of good appearance and high heat resistance, and is a heat-resistant material with good performance. The prepared heat-resistant resin can be widely used for heat-resistant modification of materials, such as ABS, PC, PBT and the like. As a material with excellent heat-resistant performancs, the resin composition can be independently used, and can also be used for preparing high heat-resistant parts of automobiles and home 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 resin composition containing maleimide 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. [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 copolymerization modification method is mainly composed of two parts of technology, one part is the ...

Claims

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Application Information

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IPC IPC(8): C08L25/12C08F2/22C08K3/30C08L51/06
Inventor 荔栓红吴宇李炳泉李晶赵玉中桂强王乐王振华刘吉平郑聚成
Owner PETROCHINA CO LTD
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