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Electrically conductive resin composition and method of preparing same

A technology of conductive resin and composition, which is applied in the field of conductive resin composition and its preparation, and can solve the problems of reduced and uneven conductivity

Inactive Publication Date: 2019-05-28
KOREA KUMHO PETROCHEMICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the above-mentioned resin composition is basically thermoplastic, it should be able to be freely molded according to the shape of the final product, but when the product is molded, the dispersion of the carbon nanotubes dispersed in the resin composition needs to be higher than that of the flat part. The bending portion of the elongation becomes uneven, and the electrical conductivity at the above bending portion is significantly lowered, so it is difficult to apply to products and parts that require precise molding, and it is impossible to provide the desired effect on a sheet thinned by high stretching. required level of impact resistance

Method used

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  • Electrically conductive resin composition and method of preparing same
  • Electrically conductive resin composition and method of preparing same
  • Electrically conductive resin composition and method of preparing same

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[0066] The preparation method of conductive resin composition

[0067] Another aspect of the present invention provides a method for preparing a conductive resin composition, which is characterized in that it includes: step (a), mixing the first copolymer with an average particle size of 1-5 μm and conductive filler to prepare a masterbatch; and Step (b), mixing the above-mentioned masterbatch, the second copolymer with an average particle diameter of 0.1-1 μm, and the third copolymerized copolymer obtained by copolymerizing styrene and butadiene at a weight ratio of 60-80:20-40, respectively and rubber components.

[0068] The functions and effects, contents and usable types of the above-mentioned first to third copolymers, conductive fillers, and rubber components are the same as those described above.

[0069] That is, the above-mentioned conductive resin composition may be prepared at the above-mentioned compositional ratio by first mixing a polymer component and a cond...

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Abstract

The embodiment of the invention provides an electrically conductive resin composition and a method of preparing the same. The conductive resin composition includes 10 to 40 wt% of a first copolymer having an average particle size of 1 to 5 [mu]m; 30 to 60 wt% of a second copolymer having an average particle size of 0.1 to 1 [mu]m; 10 to 20 wt% of a third copolymer prepared by copolymerizing styrene and butadiene in a weight ratio of 60 to 80 : 20 to 40; 1 to 10 wt% of a conductive filler; and 5 to 10 wt% of a rubber component.

Description

technical field [0001] The present invention relates to a conductive resin composition and a preparation method thereof, and more particularly, to a conductive resin composition that can maintain mechanical properties and be molded into a product that minimizes sloughing due to desorption of conductive fillers, and its preparation method. Background technique [0002] Thermoplastic resins are plastics that soften and become plastic when heated, and solidify when cooled. The above-mentioned thermoplastic resins have excellent processability and moldability, and thus are widely used in various household products, office automation equipment, electrical and electronic products, automotive parts, and the like. [0003] Also, attempts to use thermoplastic resins as high value-added materials by imparting specific properties according to the kinds and characteristics of products using the above-mentioned thermoplastic resins are continuing. [0004] In particular, when a thermop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L51/04C08L83/04C08L53/02C08K3/04
CPCC08L9/06C08L2205/035H01B1/24C08K3/041C08L25/10C08L21/00C08K5/20C08K5/098C08J3/226C08K2201/001C08L47/00C08L2203/20C08L2205/025C08L2310/00
Inventor 黄湖水李玩睲金炯旻宋有贤金东焕
Owner KOREA KUMHO PETROCHEMICAL CO LTD