Electroconductive thermoplastic elastomer composition as well as preparation method and applications thereof

A thermoplastic elastomer and composition technology, applied in the field of conductive thermoplastic elastomer composition, SEBS thermoplastic elastomer, can solve the problems that cannot be separated into shapes, cannot be used for normal conduction, and do not meet environmental protection requirements, etc., to achieve good conduction performance, good anti-blocking, uniform conductivity

Active Publication Date: 2014-07-02
NINGBO TAIYONG AUTOMOTIVE PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Originally, the conductive layer was generally made of conductive ethylene-propylene-diene rubber (EPDM) material. Since this material cannot be recycled and does not meet environmental protection requirements, it is required to be replaced by thermoplastic elastomers; ordinary thermoplastic elastomer materials are insulating materials. , although some merchants in the market sell conductive thermoplastic elastomers, the conductive thermoplastic elastomers sold are actually antistatic materials, and their material resistances are basically above one million ohms, so they cannot be used as normal conductive materials.
In addition, the thermoplastic elastomer material includes SEBS thermoplastic elastomer. In a high-temperature environment, when two thermoplastic elastomer products that were originally molded separately come together, the two thermoplastic elastomer products will be bonded together and cannot be processed as originally intended. made into shapes apart

Method used

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  • Electroconductive thermoplastic elastomer composition as well as preparation method and applications thereof
  • Electroconductive thermoplastic elastomer composition as well as preparation method and applications thereof
  • Electroconductive thermoplastic elastomer composition as well as preparation method and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The thermoplastic elastomer composition in the present embodiment comprises the raw material blending of following component and weight ratio: 30 parts of oil-extended SEBS elastomers, 10 parts of PP powders, 20 parts of conductive carbon blacks, 3 parts of carbon black dispersants , 3 parts of anti-blocking agent, 0.5 part of antioxidant, 0.5 part of PE wax; wherein the oil-extended SEBS elastomer is formed by blending SEBS elastomer and naphthenic system filler oil in a weight ratio of 1 to 3; The antioxidant is hindered phenolic antioxidant irganox1010 or irganox1076 or irganox1790; the carbon black dispersant is a polyol ester compound polymer, and the specific optional grade is sup1400 or epl-3; the anti-adhesive agent is The siloxane polymer with ultra-high molecular weight can be specifically selected as sf-1 or mb50-002.

[0039] Specifically prepared by the following steps:

[0040] a. Calculate the required weight of each component according to the weight rat...

Embodiment 2

[0046]The thermoplastic elastomer composition in the present embodiment comprises the raw material blending of following component and weight ratio: 40 parts of oil-extended SEBS elastomers, 18 parts of PP powders, 32 parts of conductive carbon blacks, 4 parts of carbon black dispersants , 4 parts of anti-adhesion agent, 1 part of antioxidant, 1 part of PE wax. Same as Example 1, wherein the oil-extended SEBS elastomer is formed by blending SEBS elastomer and naphthenic-based extender oil in a weight ratio of 1 to 3; wherein the antioxidant is hindered phenolic antioxidant irganox1010 or irganox1076 or irganox1790; the carbon black dispersant is a polyol ester compound polymer, and the specific optional grade is sup1400 or epl-3; the anti-blocking agent is a siloxane polymer with ultra-high molecular weight, specifically Available grades are sf-1 or mb50-002. Its preparation method and application also refer to Example 1. This embodiment is the preferred solution. The thermo...

Embodiment 3

[0048] The thermoplastic elastomer composition in the present embodiment comprises the raw material blending of following component and weight ratio: 50 parts of oil-extended SEBS elastomers, 20 parts of PP powders, 45 parts of conductive carbon blacks, 5 parts of carbon black dispersants , 5 parts of anti-adhesion agent, 2 parts of antioxidant, 2 parts of PE wax. Others are the same as the above-mentioned embodiment. The anti-pinch sensor strip for electric sliding doors of automobiles using the thermoplastic elastomer composition in this embodiment can also meet the above-mentioned index requirements after testing.

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Abstract

The invention provides an electroconductive thermoplastic elastomer composition with an excellent electroconductive performance, which is formed by the mixing of the following raw materials in parts by weight: 30-50 parts of oil charge SEBS (Styrene-Ethylene / Butylene-Styrene) elastomer, 10-20 parts of PP (propene polymer) powder, 20-45 parts of electroconductive carbon black, 3-5 parts of carbon black dispersing agent, and 3-5 parts of anti-adhesive agent, wherein the oil charge SEBS elastomer is formed by blending of an SEBS elastomer and naphthenic base charge oil according to the weight proportion of 1 to 3. The electroconductive thermoplastic elastomer composition with the excellent electroconductive performance is especially suitable for an electroconductive thermoplastic elastomer in manufacturing an anti-clamping strip in an automobile door.

Description

technical field [0001] The invention relates to a conductive thermoplastic elastomer composition with excellent electrical conductivity, especially a SEBS thermoplastic elastomer; it also relates to its preparation method and specific application; it belongs to the technical field of polymer compound compositions. Background technique [0002] Thermoplastic elastomer is referred to as TPE, which has the elasticity of rubber at room temperature and can be plasticized at high temperature; its products not only have the excellent properties of high elasticity, aging resistance and oil resistance of traditional cross-linked vulcanized rubber, but also have the convenience of ordinary plastic processing, The characteristics of a wide range of processing methods. It can be produced by injection molding, extrusion, blow molding and other processing methods, and 100% of waste materials can be used directly for secondary use after crushing. It not only simplifies the processing proc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L53/02C08L23/12C08L83/04C08K3/04B29C47/92H01B1/24B29C48/92
CPCB29C47/92B29C48/0022B29C48/04B29C48/40B29C48/875B29C48/919B29C48/92B29C2948/92704B29C2948/92895
Inventor 蒋奇斌胡益男
Owner NINGBO TAIYONG AUTOMOTIVE PARTS
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