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Preparation method of conductive plastic with ordered space network structure

A network structure, conductive plastic technology, used in cable/conductor manufacturing, circuits, electrical components, etc., can solve problems such as cost increase and composite material performance degradation, and achieve the effect of improving product performance, low filling amount, and expanding the scope of use

Active Publication Date: 2015-05-13
安徽齐鑫新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a method for preparing conductive plastics with an ordered spatial conductive network structure, which can effectively solve the problems in the conductive plastic industry that the performance of composite materials decreases and the cost increases due to the addition of conductive fillers. The present invention provides a Method for preparing high-performance conductive plastics with low filler content

Method used

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  • Preparation method of conductive plastic with ordered space network structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] First, mix 7 grams of specific conductive carbon black (SCB), 7 grams of processing aids, and 700 grams of polyethylene (PE) particles with a high-speed mixer for 3 minutes; then put 714 grams of the mixed particles into the micro-nano particle shaping bag Coating system, processing at 5000rpm for 8 minutes, and discharging for 2 minutes; finally, the composite particles were hot-pressed at 210°C and 14Mpa for 30 minutes to obtain a conductive plastic with an ordered spatial conductive network structure.

Embodiment 2

[0023] First, mix 21 grams of specific conductive carbon black (SCB), 5 grams of processing aids, and 700 grams of polyethylene (PE) particles with a high-speed mixer for 3 minutes; then put 726 grams of the mixed particles into the micro-nano particle shaping bag Coating system, processing at 5000rpm for 8 minutes, and discharging for 2 minutes; finally, the composite particles were hot-pressed at 210°C and 14Mpa for 30 minutes to obtain a conductive plastic with an ordered spatial conductive network structure.

Embodiment 3

[0025] First, mix 35 grams of specific conductive carbon black (SCB), 3 grams of processing aids, and 700 grams of polyethylene (PE) particles with a high-speed mixer for 3 minutes; then put 738 grams of the mixed particles into the micro-nano particle shaping bag Coating system, processing at 5000rpm for 8 minutes, and discharging for 2 minutes; finally, the composite particles were hot-pressed at 210°C and 14Mpa for 30 minutes to obtain a conductive plastic with an ordered spatial conductive network structure.

[0026] The electromagnetic shielding properties of the prepared conductive plastics with an ordered spatial conductive network structure are shown in Table 1.

[0027] Table 1 SCB filling amount and shielding effectiveness range

[0028]

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Abstract

The invention discloses a preparation method of a conductive plastic with an ordered space network structure. The method comprises the following steps of: firstly, premixing resin particles, a processing agent and conductive filler in a high-speed mixer, so as to enable the follow-up package is relatively even; packing ultra-fine conductive filler and the processing agent onto the surfaces of the resin particles by a micro-nano particle shaping and packing system to form spherical or sphere-approximate composite particles with 'core-shell' structures; and preparing the conductive plastic with the ordered space network structure by using a hot-press forming technology. According to the preparation method, the function of the conductive filler can be sufficiently played under low filling volume, the low filling volume and the high electrical conductivity can be realized, the product performance can be improved, the technological process can be simplified, the cost can be reduced, and the use range can be enlarged.

Description

technical field [0001] The invention relates to a preparation method of a conductive plastic with an ordered space network structure, which belongs to the field of deep processing and application of polymer composite materials. Background technique [0002] Conductive plastics are widely used in the fields of semiconductors, antistatic materials, electromagnetic shielding materials, conductive materials, etc., and can be divided into structural type and filling type. Structural conductive plastics are polymers that can conduct electricity by themselves or after doping; filled conductive plastics have conductive properties through the filling of conductive fillers (conductive carbon black, metal powder or fiber, carbon nanotubes, etc.). Compared with the filled type, the conductive plastic of the structural type has relatively low conductivity and high cost. Currently, 90% of conductive plastics are filled. Filled conductive plastics, due to the large amount of conductive f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C43/00B29C43/32B29B7/00C08L23/06C08L23/12C08L55/02C08L67/02C08K3/04C08K3/08C08K7/06C08K7/04H01B13/00
Inventor 高博姜银珠王伟赵夫涛李俊峰
Owner 安徽齐鑫新材料科技有限公司
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