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Conductive plastic and preparation method thereof

A technology of conductive plastics and conductive fillers, used in conductors, circuits, electrical components, etc., can solve problems such as limited use range, inability to meet the application requirements of conductive polymer materials, and low volume resistivity

Active Publication Date: 2014-10-15
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 plastic and preparation method thereof
  • Conductive plastic and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0045] 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 20 / 80, the total weight ratio of carbon nanotubes to polypropylene and powder rubber is 2 / 100, and the sum ratio of metal alloy volume to polypropylene and powder rubber volume is 2 / 100, Antioxidants 1010 and 168 were 0.2% and 0.4% of the total weight of powdered rubbe...

Embodiment 2

[0049] Except that the total weight ratio of carbon nanotubes to polypropylene and powdered rubber is 1 / 100, all the others are the same as in Example 1, and the conductive plastics of the obtained polypropylene / powdered rubber / carbon nanotubes / metal composite are tested for volume resistivity , and the test results are listed in Table 1.

Embodiment 3

[0051] Except that the total weight ratio of carbon nanotubes to polypropylene and powdered rubber is 7 / 100, all the others are the same as in Example 1, and the conductive plastics of the gained polypropylene / powdered rubber / carbon nanotubes / metal composite are tested for volume resistivity , and the test results are listed in Table 1. The volume resistivity performance test results under tensile deformation at 140°C are listed in Table 2.

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Abstract

The invention provides a conductive plastic and a preparation method thereof. The conductive plastic comprises the following blended compositions: a, thermoplastic resin; b, rubber particle with a crosslinking structure; c, a conductive filter; and d, a low-melting-point metal. The gel content of the composition b is 60% by weight or more, and the average particle size of the composition b is 0.02-1 mu m; the composition c is not fused at a thermoplastic-resin processing temperature; the composition d is at least one of a single-composition metal or metal alloy, the melting point of the composition d is 20-480 DEG C and is lower than the thermoplastic-resin processing temperature; and the weight ratio of the composition b to the composition a is 0.1:99.9-30:70. The conductive plastic is low in filling content of the conductive filler and the metal, is relatively low in conductive performance, can be prepared by using a common melt blending method, and can be used to prepare antistatic electromagnetic-wave-interference-resisting electron production equipment and tools with dust-free requirements, and electronic apparatuses, instrument housings and decoration materials of dust-free production workshops.

Description

technical field [0001] The invention relates to modified plastics, and furthermore, the invention relates to a conductive plastic compounded with plastics, nano conductive fillers and low-melting point metals and a preparation method thereof. Background technique [0002] Conductive plastics have been widely used in the fields of automobiles, electronics, chemical industry and aerospace, and composite conductive plastics have been widely used because of their simple processing and low cost. However, the type and amount of conductive fillers (conductive fillers) used in the preparation of composite conductive plastics have a great impact on the electrical and other properties of composite conductive plastics. In the current research, conductive fillers mainly include carbon-based and metal-based. Carbon-based conductive fillers include carbon black, carbon fiber, graphite powder, graphite fiber, carbon nanotube nano-graphite microflakes, graphene, etc.; metal conductive fille...

Claims

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Application Information

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IPC IPC(8): C08L13/00C08L23/12C08L77/02C08K13/04C08K7/06C08K3/08H01B5/16
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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