Composite shielding material for cable and preparation method thereof

A composite shielding and composite material technology, applied in the direction of plastic/resin/wax insulators, organic insulators, etc., can solve the problems of increasing the probability of contact between conductive materials and poor shielding performance, and achieve regular arrangement, good shielding performance, and preparation The effect of simple method

Inactive Publication Date: 2017-11-07
DEYANG LIJIU YUNZHI KNOWLEDGE PROPERTY OPERATIONS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defect of poor shielding performance of existing cable composite shielding materials, and provide a kind of cable composite shielding material and its preparation method; the present invention makes the conductive materials have magnetism through the magnetization treatment of the conductive materials in the

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0025] Example 1

[0026] (1) Weigh 85% by weight polyethylene, 10% by weight, with a length-to-diameter ratio of 5:1, iron fibers with a diameter of 1μm, and 5% by weight additives, and mix them evenly with double The screw extruder performs extrusion processing to obtain composite materials;

[0027] (2) Magnetize the composite material obtained in step 1 with the magnet, so that the conductive material in the composite material has a magnetic strength of 0.01T;

[0028] (3) After melting and granulating the magnetized composite material, the composite cable shielding material of the present invention is obtained.

Example Embodiment

[0029] Example 2

[0030] (1) Weigh 80% by weight polyvinyl chloride, 10% by weight, with a length-to-diameter ratio of 10:1, nickel fiber with a diameter of 0.01μm, and 10% by weight of additives and mix them evenly Extrusion process with twin screw extruder to obtain composite material;

[0031] (2) The composite material obtained in step 1 is magnetized with a magnet, so that the conductive material in the composite material has a magnetic strength of 0.09T;

[0032] (3) After melting and granulating the magnetized composite material, the composite cable shielding material of the present invention is obtained.

Example Embodiment

[0033] Example 3

[0034] (1) Weigh 92% by weight of polycarbonate, 5% by weight and a length-to-diameter ratio of 2:1, ferroalloy fibers with a diameter of 50μm and 3% by weight of additives and mix them evenly. The twin-screw extruder performs extrusion processing to obtain composite materials;

[0035] (2) Magnetize the composite material obtained in step 1 with the electric field generated by the energized wire, so that the conductive material in the composite material has a magnetic strength of 0.001T;

[0036] (3) After melting and granulating the magnetized composite material, the composite cable shielding material of the present invention is obtained.

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Abstract

The invention discloses a composite shielding material for a cable and a preparation method thereof. Through magnetization treatment on conductive materials in matrix resin, the conductive materials are magnetic and thus can move and be rearranged under the action of magnetic force through re-fusion, so that the conductive materials are arranged in the matrix resin in a more regular mode. The probability of the mutual contact of the conductive materials is improved, and the shielding performance of the composite shielding material for the cable is effectively improved.

Description

technical field [0001] The invention relates to the field of shielding materials, in particular to a cable composite shielding material and a preparation method thereof. Background technique [0002] In electrical or electronic systems, cables are mainly used to connect different systems and realize the efficient transmission of energy and information between different systems. A cable is usually a rope-like cable twisted by several or groups of wires, each group of wires is insulated from each other, and is often twisted around a center, and the entire outside is covered with a highly insulating covering. Most of them are erected in the air or buried underground or underwater for communication or power transmission. Cables can be divided into power cables, communication cables and control cables according to their uses. Power cables are mainly composed of wire core, insulation layer, shielding layer and protective layer. [0003] The cable shield is made up of shielding ...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L27/06C08L69/00C08K7/06C08J3/00H01B3/44H01B3/42
CPCC08K7/06C08J3/00C08J2323/06C08J2327/06C08J2369/00C08K2201/001C08K2201/003C08K2201/014C08K2201/016C08L2203/202H01B3/426H01B3/441H01B3/443C08L23/06C08L27/06C08L69/00
Inventor 李红梅
Owner DEYANG LIJIU YUNZHI KNOWLEDGE PROPERTY OPERATIONS CO LTD
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