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Preparation process of modified chlorinated polyethylene for rubber plastic material

A chlorinated polyethylene and preparation technology, which is applied in the field of modified chlorinated polyethylene and the preparation technology of modified chlorinated polyethylene, can solve the problem of poor plasticization promotion function, poor durability of low-temperature impact resistance, and poor performance and other issues, to achieve the effect of comprehensive use performance improvement, good use characteristics and performance improvement

Active Publication Date: 2016-04-20
河北雄发新材料科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The present invention aims to solve the problems of poor plasticization promotion function and low-temperature impact resistance durability in the industrial application of general-purpose chlorinated polyethylene in the prior art, especially the poor performance of general-purpose CPE as a rubber material, and provides A preparation process of general-purpose modified chlorinated polyethylene for rubber and plastic materials has been developed, which has the advantages of good processing performance, good vulcanization performance, and good mechanical properties.

Method used

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  • Preparation process of modified chlorinated polyethylene for rubber plastic material
  • Preparation process of modified chlorinated polyethylene for rubber plastic material
  • Preparation process of modified chlorinated polyethylene for rubber plastic material

Examples

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Embodiment 1

[0030] The chlorinated polyethylene was grafted after swelling with ethyl acetate, including 200 g of chlorinated polyethylene, 35 g of maleic anhydride, 1.2 g of dicumyl peroxide, 100 mL of ethyl acetate, and 1000 mL of deionized water.

[0031] A. Swelling treatment: Add general-purpose chlorinated polyethylene, dicumyl peroxide, maleic anhydride, ethyl acetate and deionized water into the reactor in proportion. The reactor is equipped with a stirrer and a condenser , thermometer, separatory funnel, general-purpose chlorinated polyethylene fully swells for 2 hours when stirred at 60°C;

[0032] B. Dispersion treatment: Add deionized water and dispersant to the product obtained after the swelling treatment in step A for dispersion treatment under stirring, then pass nitrogen into it, raise the temperature to 90°C for reaction for 3 hours, and pump it while it is hot after the reaction During suction filtration, the product is precipitated and separated with a precipitant firs...

Embodiment 2

[0036] The chlorinated polyethylene is grafted after swelling with xylene in water, wherein 250 g of chlorinated polyethylene, 40 g of maleic anhydride, 1.5 g of benzoyl peroxide, 120 mL of xylene, and 1000 mL of water.

[0037] A. Swelling treatment: Add general-purpose chlorinated polyethylene, benzoyl peroxide, maleic anhydride, xylene and deionized water into the reactor in proportion. The reactor is equipped with a stirrer, condenser, and thermometer , Separating funnel, general-purpose chlorinated polyethylene fully swells for 1.5h when stirred at 80°C;

[0038] B. Dispersion treatment: Add deionized water and a dispersant to the product obtained after the swelling treatment in step A for dispersion treatment, then pass nitrogen into it, raise the temperature to 90°C for 3 hours, and carry out separation after the reaction. liquid, separate the xylene, add a precipitating agent to precipitate and separate the product, and wash the product with hot water to obtain a modif...

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Abstract

The invention provides a preparation process of modified chlorinated polyethylene for a rubber plastic material and belongs to the technical field of chlorinated polyethylene for the rubber plastic material. Universal chlorinated polyethylene is grafted and modified, and modified chlorinated polyethylene is obtained. The preparation process comprises steps as follows: A, swelling treatment: universal chlorinated polyethylene, an initiator, a grafting monomer, a swelling agent and deionized water are added to a reactor in a proportion for swelling treatment; B, dispersing treatment: deionized water and a dispersing agent are added to a product obtained after swelling treatment in the step A in a stirring state for dispersing treatment, nitrogen gas is introduced into the mixture, the mixture is heated for a reaction, and a modified chlorinated polyethylene crude product is obtained; C, purification treatment: the modified chlorinated polyethylene crude product obtained in the step B is extracted, the extracted product is dried to reach a constant weight, and modified chlorinated polyethylene is obtained. The modified chlorinated polyethylene obtained through grafting and modification is added to a plastic rubber material, and the performance of the plastic rubber material is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of chlorinated polyethylene for rubber and plastic materials, and specifically relates to a preparation process of modified chlorinated polyethylene for rubber and plastic materials. Modified chlorinated polyethylene is obtained by grafting and modifying chlorinated polyethylene. Ethylene, in order to improve the comprehensive performance of chlorinated polyethylene when it is applied to the processing of rubber and plastic materials. Background technique [0002] Chlorinated Polyethylene (Chlorinated Polyethylene) is a chlorine-containing polymer obtained by chlorinating polyethylene with liquid chlorine. Its molecular structure can be regarded as a ternary random copolymer of ethylene, vinyl chloride, and 1,2-dichloroethylene. It is a non-toxic, odorless white or slightly yellow powder. According to the different chlorine content, it can be divided into plastic CPE (chlorine content 15%), elastic CPE (16%...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F255/02C08F222/06C08F6/00C08L27/06C08L51/06
CPCC08F6/00C08F255/023C08L27/06C08F222/06C08L51/06
Inventor 张保发
Owner 河北雄发新材料科技发展有限公司
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