Electromagnetic shielding polyethylene material and preparation process thereof

An electromagnetic shielding and polyethylene technology, which is applied in the field of electromagnetic shielding polyethylene materials and its preparation, can solve the problems of difficult production and processing, high cost, low production efficiency, etc., so as to improve competitiveness, reduce costs, and facilitate production and procurement Effect

Inactive Publication Date: 2010-05-05
KECHUANG POLYMER SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the market of this series of products basically has to use metal raw materials for production, and suffers from

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0011] The first embodiment provides an electromagnetic shielding polyethylene raw material, which is composed of the following components in a weight ratio: polyethylene: 65%; carbon fiber: 10%; conductive graphite: 23%; antioxidant: 1%; coupling agent: 0.5 %; Other additives: 0.5%;

[0012] First weigh the polyethylene, antioxidants, coupling agents, and other additives according to the proportions and mix them in the mixer at low speed for 10 minutes. The mixer uses low speed mixing. The gap between the mixing blade and the cylinder wall should be less than 0.5 cm. The mixing effect of auxiliary materials should be visually uniform, with no obvious agglomeration or agglomeration; the twin-screw extruder uses 36 aspect ratio, medium strength shear; carbon fiber and conductive graphite are added in proportion from the side; water-cooled drawing In the strip pelletizing method, the electromagnetic shielding polyethylene material is obtained through sieving and dehydration.

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PUM

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Abstract

The invention relates to an organic polymer composite material, in particular to a polyethylene material capable of electromagnetic shielding and a preparation method thereof. The polyethylene material comprises the following components in percentage by weight: 49.5-90 percent of polyethylene, 5-35 percent of carbon fiber, 2-30 percent of conductive graphite, 0.2-1.0 percent of antioxidant, 0.2-2.0 percent of coupling agent and 0.3-5.5 percent of other auxiliary agent. The electromagnetic shielding polyethylene material can replace metal raw materials to produce spare and accessory parts or casings, and combines the favorable performance of thermoplastic plastics which can be processed easily and the electromagnetic shielding function of metal materials, therefore, the production purchasing of the electromagnetic shielding polyethylene material can be realized conveniently, and the relevant cost can be greatly reduced. The electromagnetic shielding polyethylene material also has the advantages of acid-resistant and alkali-resistant corrosion, certain mechanical strength and temperature toleration, thereby comprehensively improving the competitiveness.

Description

technical field [0001] The invention relates to an organic polymer composite material, in particular to an electromagnetic shielding polyethylene material and a preparation method thereof. Background technique [0002] At present, the use of plastics to replace metals continues to expand internationally. Scientists from all over the world are actively looking for new functional thermoplastics through various experiments, which has become an important part of companies' efforts to win more customers and expand market share. [0003] However, the conductivity and electromagnetic shielding properties of metals are not available in ordinary plastics. At present, in many fields such as civil electronic appliances / toys / communications / cables / military industry, parts that need electromagnetic shielding functions are involved. At present, the market of this series of products basically has to use metal raw materials for production, and suffers from a series of shortcomings such as d...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08K7/06C08K3/04H05K9/00
Inventor 孙平
Owner KECHUANG POLYMER SUZHOU
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