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Fully-vulcanized polypropylene/acrylate rubber thermoplastic elastomer and preparation method thereof

A technology of thermoplastic elastomers and acrylic esters, which is applied in the preparation of fully vulcanized thermoplastic elastomers, and in the field of fully vulcanized polypropylene/acrylate rubber thermoplastic elastomers, which can solve the problem of inability to prepare oil-resistant thermoplastic elastomers with comprehensive performance and long-term Continuously prepare thermoplastic elastomers, and the elongation at break cannot be high enough to achieve the effects of expanding the hardness range, strong competitiveness, and reducing production costs

Active Publication Date: 2010-03-17
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the thermoplastic elastomer prepared by this prior art has relatively high hardness, and the elongation at break cannot be high enough to prepare a soft-grade oil-resistant thermoplastic elastomer with better overall performance; in addition, in this prior art, due to the powder rubber The content is large and the particle size is small, so in the preparation process of the elastomer, the fluidity of the powder rubber is low, and the thermoplastic elastomer cannot be prepared continuously for a long time

Method used

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  • Fully-vulcanized polypropylene/acrylate rubber thermoplastic elastomer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Fully vulcanized powdered acrylate powder rubber with an average particle size of about 0.1 μm (produced by Beijing Chemical Research Institute of China Petroleum and Chemical Industry Co., Ltd. - Ethylhexyl) ester (produced by South Korean LG company) is fully mixed in a ratio of 100 / 30, and polypropylene plastic (Yanshan Petrochemical, brand PPR) is mixed in a ratio of 50 / 50, and then 0.5% antioxidant 1010 ( Produced by Ciba Jiaji in Switzerland), extruded and granulated with ZSK-25 twin-screw extruder of German WP company. and 195°C (head temperature). The pellets were made into standard specimens by injection molding, and various performance tests were carried out. The measured results of the fully vulcanized polypropylene / acrylic rubber thermoplastic elastomer are listed in Table 1.

Embodiment 2

[0020] Except that fully vulcanized acrylate powder rubber and trimellitate tris (2-ethylhexyl) ester are mixed in a ratio of 100 / 50, all the others are the same as in Example 1, and the measured fully vulcanized polypropylene / acrylate rubber The thermoplastic elastomer results are listed in Table 1.

Embodiment 3

[0024] Fully vulcanized acrylate powder rubber with an average particle size of about 0.1 μm (produced by Beijing Chemical Research Institute of China Petroleum and Chemical Industry Co., Ltd. Ethylhexyl) ester (produced by South Korean LG company) is fully mixed in a ratio of 100 / 30, mixed with polypropylene (Yanshan Petrochemical, brand PPR) in a ratio of 60 / 40, and then 0.5% antioxidant 1010 (Swiss Automobile Co., Ltd.) is added. produced by Bagaki), extruded and granulated with ZSK-25 twin-screw extruder of German WP company, and the temperatures of each section of the extruder were: 170°C, 190°C, 190°C, 190°C, 190°C and 195°C ℃ (head temperature). Granules are made into standard specimens by injection molding, and various performance tests are carried out. The results of the fully vulcanized polypropylene / acrylate rubber thermoplastic elastomer recorded are listed in Table 1 (if the method of the patent of the present invention is not adopted, then the The samples prepar...

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Abstract

The invention provides a fully-vulcanized polypropylene / acrylate rubber thermoplastic elastomer and a preparation method thereof, which relate to the technical field of thermoplastic elastomer. The fully-vulcanized thermoplastic elastomer is formed by melting and mixing the components which include polypropylene plastics and a rubber component, wherein the weight ratio of the rubber component to the polypropylene plastics is 30:70-75:25. The rubber component is a mixture of rubber particles with a cross-linked structure and a softener, wherein the content of the softener is 30-120% of the rubber particles by weight; and the rubber particles are fully-vulcanized acrylate powdered rubber, the mean particle diameter is 0.05mum-0.5mum, and the gel content is 60% by weight or higher. The softener is selected from at least one of a phthalic acid ester compound, dioctyl terephthalate, a trimellitate compound and a pyromellitic ester compound. The fully-vulcanized polypropylene / acrylate rubber thermoplastic elastomer has good comprehensive properties of oil resistance, low hardness, high elongation at break and the like.

Description

technical field [0001] The present invention relates to a thermoplastic elastomer, and furthermore, the present invention relates to a fully vulcanized polypropylene / acrylate rubber thermoplastic elastomer and a preparation method of the fully vulcanized thermoplastic elastomer. Background technique [0002] The applicant's patent "An oil-resistant fully vulcanized thermoplastic elastomer and its preparation method" (ZL01143457.0) discloses an oil-resistant fully vulcanized thermoplastic elastomer, which consists of It is obtained by blending components including oil-resistant powder rubber with cross-linked structure and polyolefin. Among them, the polyolefin plastic component is composed of polyolefin and modified polyolefin. The patented oil-resistant fully vulcanized thermoplastic elastomer contains a small rubber phase particle size, high tensile strength and elongation at break, good appearance and good processability. The patent also provides a relatively simple met...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L33/04C08K5/12
Inventor 张晓红谭邦会乔金樑高建明黄帆宋志海魏根栓赖金梅
Owner CHINA PETROLEUM & CHEM CORP
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