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Thermoplastic elastomer and preparation method

A thermoplastic elastomer and matrix technology, applied in the field of elastomers, can solve the problems of poor controllability, large fluctuation of product density, unstable extrusion performance, etc., and achieve the effects of improving extrusion stability, improving efficiency and convenient processing.

Inactive Publication Date: 2017-07-21
中广核三角洲集团(苏州)特威塑胶有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The existing technology is generally to stir and mix the foaming matrix and foaming agent, and then extrude and foam through a twin-screw extruder, which will easily lead to unstable extrusion performance, large fluctuations in product density, and poor controllability. poor

Method used

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Examples

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Embodiment Construction

[0029] The specific implementation of the present invention will be further described below in conjunction with the examples. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0030] The technical scheme of concrete implementation of the present invention is:

[0031] Preparation method: According to the raw material formula in Table 1, the matrix, foaming agent, rubber oil A, cross-linking agent, lubricant, cross-linking agent A and light stabilizer are mixed in a banbury mixer for 15 to 30 minutes, and the banbury mixer The temperature is 150°C to 200°C. Then the material is sent into a twin-screw extruder, the speed of the twin-screw extruder is controlled at 290 rpm, the extrusion temperature is 140° C. to 200° C., and the elastomer material is obtained by extruding and granulating. The properties of the materials were tested and the results ar...

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Abstract

The invention discloses a thermoplastic elastomer. The thermoplastic elastomer is prepared from, by weight, 60-85 parts of matrix, 1-10 parts of foaming agent, 5-20 parts of rubber oil A, 1-3 parts of lubricant, 1-3 parts of cross-linking agent A and 1-2 parts of light stabilizer. Compared with the prior art, the thermoplastic elastomer has the advantages that the prepared elastomer is low in density, good in elasticity, high in tensile strength, uniform in foaming, convenient and fast to process and stable in extrusion.

Description

technical field [0001] The invention relates to the technical field of elastomers, in particular to a thermoplastic elastomer and a preparation method thereof. Background technique [0002] The lightweight of automobiles helps to save energy and reduce emissions, improve engine efficiency, reduce exhaust emissions, and reduce "friction loss" in the driving link. It is the development direction of automobile technology in the low-carbon era. Foamed thermoplastic elastomer is a type of polymer material formed by a large amount of gas dispersed in the material, which has the characteristics of light weight, heat insulation, sound absorption, and vibration reduction. Microcellular foamed thermoplastic elastomers can significantly reduce the weight of the product while maintaining the necessary mechanical properties of the material, thereby reducing raw material consumption and production costs, and ultimately realizing the lightweight production of automobiles. [0003] Existin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08L23/12C08L91/06C08L91/00C08J9/12
CPCC08L23/16C08J9/122C08J2203/06C08J2203/22C08J2323/16C08J2423/12C08L2203/14C08L2205/025C08L2205/035C08L2207/04C08L23/12C08L91/06C08L91/00
Inventor 陆燕孙晓斌徐加勇徐红岩
Owner 中广核三角洲集团(苏州)特威塑胶有限公司
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