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Conductive thermoplastic elastomer and preparation method thereof

A technology of thermoplastic elastomers and thermoplastic resins, applied in the direction of conductive materials dispersed in non-conductive inorganic materials, etc., can solve problems such as limiting the scope of use, failing to meet the application requirements of conductive polymer materials, and thermoplastic elastomers.

Active Publication Date: 2014-10-15
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 invention patent cannot meet the use requirements of lower volume resistivity, which limits its application range and cannot meet the application requirements of higher requirements for conductive polymer materials.

Method used

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  • Conductive thermoplastic elastomer and preparation method thereof
  • Conductive thermoplastic elastomer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Carboxylated nitrile powder rubber (Sinopec Beijing Research Institute of Chemical Industry, VP501, average particle size 90nm; gel content 91%wt), carbon nanotubes (Beijing Tiannai Technology Co., Ltd., FloTube9000, average diameter 11nm, average length 10μm ; aspect ratio of 900, multi-walled carbon nanotubes), polypropylene (Ningbo Nengzhiguang New Material Technology Co., Ltd., GPM200A, melting point 163 ° C), the metal alloy is tin-bismuth alloy (Beijing Sanhe Dingxin High-tech Development Co., Ltd. company, melting point 138°C), Antioxidant 1010 and Antioxidant 168 (manufactured by Ciba Gage, Switzerland), and mix thoroughly in a blender. Wherein the weight ratio of powder rubber to polypropylene is 70 / 30, the total weight ratio of carbon nanotubes to polypropylene and powder rubber is 2 / 100, the volume ratio of the metal alloy to the volume of polypropylene and powder rubber is 2 / 100, Antioxidants 1010 and 168 were 0.2% and 0.4% of the total weight of powdered ru...

Embodiment 2

[0053] Except that the volume ratio of powder rubber and polypropylene is 60:40, all the other are the same as in Example 1, and the gained polypropylene / powder rubber / carbon nanotube / metal composite is tested for volume resistivity, and the test results are shown in Table 1. .

Embodiment 3

[0055] Except that the volume ratio of powder rubber and polypropylene is 40:60, all the other are the same as in Example 1, the gained polypropylene / powder rubber / carbon nanotube / metal composite material is tested for volume resistivity, and the test results are shown in Table 1 .

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Abstract

The invention provides a conductive thermoplastic elastomer and a preparation method thereof. The thermoplastic elastomer includes following blended components: a. thermoplastic resin; b. rubber particles having crosslinking structures; c. a conductive filling material; and d. low-melting-point metal. Gel content in the component b is, by weight, 60% or more than 60%. An average particle size of the rubber particles is 0.02-1 [mu]m. The component c is not melted at a processing temperature of the thermoplastic resin. The component d is at least one of a single-component metal and a metal alloy. A melting point of the component d ranges from 20-480 DEG C and is lower than the processing temperature of the thermoplastic resin. A weight ratio of the component b to the component a is more than 30:70 and is lower than 75:25. The conductive polymer composite material is low in filling amount of the conductive filling material and the low-melting-point metal, is excellent in conductive performance, can be prepared through a melt blending method, can be used for manufacturing electronic production devices and tools which have an anti-static function and an electromagnetic wave interference resistant function and is of a dust-free requirement, can be used for manufacturing shells of electronic instruments and meters, can be used as a decoration material in a dust-free production workshop and can be used as shells and circuit boards of various flexible electronic products.

Description

technical field [0001] The present invention relates to a fully vulcanized thermoplastic elastomer, and furthermore, the present invention relates to a conductive fully vulcanized thermoplastic elastomer and a preparation method thereof. Background technique [0002] Fully vulcanized thermoplastic elastomer is a new material developed in the 1980s. It has the characteristics of both plastic and rubber: it shows high elasticity of rubber at room temperature, and can be plasticized at high temperature. The strength, elasticity, heat resistance and compression set resistance of fully vulcanized thermoplastic elastomers are greatly improved compared with uncrosslinked thermoplastic elastomers. At the same time, the chemical resistance and processing stability are significantly improved, and the rubber-plastic blending ratio can be changed in a wide range, so that the material has greater room for adjustment in performance. Therefore, the application range is very wide. In the...

Claims

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Application Information

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IPC IPC(8): C08L7/00C08L9/06C08L13/00C08L9/02C08L9/00C08L11/00C08L83/04C08L33/04C08L23/22C08L81/04C08L75/04C08L27/12C08L23/12C08L23/06C08L77/00C08L27/06C08L67/00C08L69/00C08L59/00C08L25/06C08L81/02C08L79/08C08L81/06C08L51/00H01B1/22H01B1/24C08K3/08C08K7/00C08K3/04
Inventor 乔金樑朱燚磊张晓红戚桂村宋志海蔡传伦王亚赖金梅李秉海高建明张红彬王湘陈刚蒋海斌
Owner CHINA PETROLEUM & CHEM CORP
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