Environmental stress crack-resistant polyethylene sheath material for power wire and preparation method thereof

A technology of environmental stress resistance and polyethylene sheath, applied in the direction of circuits, electrical components, insulating cables, etc., can solve the problems of easy deformation, easy cracking, and limited application range, etc., and achieve the effect of excellent environmental stress crack resistance

Inactive Publication Date: 2014-01-29
天长市富达电子科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, the existing outdoor overhead polyethylene power cord is easily deformed by external force during use, and it is easy to crack when exposed to liquid solvent and its vapor, which limits its application range

Method used

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  • Environmental stress crack-resistant polyethylene sheath material for power wire and preparation method thereof

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Embodiment Construction

[0012] A kind of environmental stress cracking resistant polyethylene sheathing material for power lines, made of the following raw materials in weight (kg): linear low density polyethylene 80, polystyrene resin 20, polyparaphenylene terephthalamide 15, Dimethicone 6, lead dibasic phosphite 2, calcium stearate 1, zinc stearate 1, antioxidant 10100.8, antioxidant 1681, ethylene bisstearamide 3, chlorinated paraffin 5, Pine tar 4, magnesium hydroxide 12, zinc borate hydrate 8, ultraviolet absorber UV-3271, aniline methyl triethoxysilane 4, high wear-resistant carbon black 20, quartz powder 12, nano potassium feldspar 8, composite filler 4;

[0013] The preparation method of the composite filler is as follows: a. Take the following raw materials by weight (kg): pyrophyllite 8, diopside 10, protein clay 6, N-2-(aminoethyl)-3-aminopropyltrimethoxy Silane 1.5, calcium lignosulfonate 2, sodium silicate 4, tourmaline slag 5, nano-diamond 4, germanium stone powder 3, sodium stearate 1...

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Abstract

The invention discloses an environmental stress crack-resistant polyethylene sheath material for a power wire and a preparation method thereof. The environmental stress crack-resistant polyethylene sheath material is prepared from the following substances in parts by weight: 80-100 parts of linear low-density polyethylene, 15-20 parts of polystyrene resin, 10-15 parts of polyphthalamide, 4-8 parts of dimethyl silicon oil, 2-3 parts of dibasic lead phosphate, 1-2 parts of calcium stearate, 1-2 parts of zinc stearate, 0.5-1 part of antioxidant 1010, 1-2 parts of antioxidant 168, 2-4 parts of ethylene distearate amide, 4-6 parts of chlorinated paraffin and 3-5 parts of pine tar. The sheath material has the advantages of excellent environmental stress crack resistance, high-low temperature resistance, acid-base resistance, salt mist resistance, ozone aging resistance, ultraviolet radiation resistance, abrasive resistance and tensile strength, is capable of working normally in a working environment at a temperature ranging from 60 DEG C below zero to 105 DEG C, is non-deformable and non-cracking in long-time use, is safe and reliable and is applicable to internal and external sheathes of overhead power wires in the outdoor.

Description

technical field [0001] The invention relates to a power cord sheathing material and a preparation method thereof, in particular to an environmental stress cracking-resistant polyethylene sheathing material for a power cord and a preparation method thereof. Background technique [0002] The power cord sheath is an indispensable intermediate structural part of the power cord, which protects the power cord, ensures the safety of the power cord, and isolates the copper wire from water, air and other media to avoid leakage. Due to its excellent heat aging resistance, tensile strength, and elongation at break, the polyethylene sheath material is suitable for power cord sheathing and has sufficient protection for copper cores. However, the existing outdoor overhead polyethylene power cords are easily deformed by external forces during use, and are easily cracked when exposed to liquid solvents and their vapors, which limits their application range. Contents of the invention [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L25/06C08L77/06C08K13/06C08K9/00C08K9/02C08K3/34C08K3/04C08K5/098C08K3/38C08K3/22H01B3/44H01B7/17
CPCC08K2201/014C08L23/0815C08L2201/08C08L2203/202C08L2205/035H01B3/441H01B7/18H01B7/28C08L25/06C08L67/02C08L83/04C08K13/06C08K9/00C08K9/02C08K3/346C08K3/04C08K5/098C08K3/38C08K2003/2224C08K3/34
Inventor 林文树林文禄曹卫明鲜元兵
Owner 天长市富达电子科技股份有限公司
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