Low-shrinkage silane cable material and preparation method thereof

A low-shrinkage silane and cable material technology, used in the field of cable materials, can solve the problems of low production efficiency, large shrinkage rate, high scrap rate, and achieve the effects of reducing shrinkage rate, improving heat resistance and reducing shrinkage rate.

Active Publication Date: 2019-04-09
成都鑫成鹏高分子科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a low-shrinkage silane cable material and a preparation method thereof. The cable material can effectively solve the problem of large shrinkage, low production efficiency, and waste products in the production of cables in existing cable materials. The problem of high rate and high energy consumption

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  • Low-shrinkage silane cable material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0023] A low-shrinkage silane cable material, comprising the following components in parts by weight: 100 parts of linear low-density polyethylene resin, 3 parts of ethylene-propylene copolymer resin, 1 part of ethylene-octene copolymer resin, and 1 part of vinyltrimethoxysilane , 0.02 parts of dicumyl peroxide and 4 parts of catalytic masterbatch;

[0024] The catalytic master batch includes the following components by weight: 100 parts of linear low-density polyethylene resin, 0.1 part of dibutyltin acetate, 0.1 part of vinyl tributyltin, 0.1 part of allyl tributyltin, and 0.2 part of dibutyltin maleate , 10101 parts of antioxidant, 0.2 part of polyethylene wax and 0.3 part of fluorine rubber;

[0025] Among them, the density of linear low density polyethylene resin is 0.926g / cm 3 , The melt flow rate is 20g / 10min; the melt flow rate of the ethylene-propylene copolymer resin is 3g / min, and the melt flow rate of the ethylene-octene copolymer resin is 2g / min.

[0026] The pr...

Embodiment 2

[0031] A low-shrinkage silane cable material, comprising the following components in parts by weight: 100 parts of low-density polyethylene resin, 10 parts of ethylene-propylene copolymer resin, 5 parts of ethylene-octene copolymer resin, and 5 parts of vinyltriethoxysilane , 0.05 parts of benzoyl peroxide and 10 parts of catalytic masterbatch;

[0032] The catalytic master batch includes the following components by weight: 100 parts of low-density polyethylene resin, 0.2 part of dibutyl tin acetate, 0.2 part of vinyl tributyl tin, 0.2 part of allyl tributyl tin, 0.4 part of dibutyl tin maleate, 2.5 parts of antioxidant 1076, 0.7 parts of polyethylene wax and 0.3 parts of fluororubber;

[0033] Among them, the density of low-density polyethylene resin is 0.940g / cm 3 , The melt flow rate is 200g / 10min; the melt flow rate of the ethylene-propylene copolymer resin is 6g / min, and the melt flow rate of the ethylene-octene copolymer resin is 8g / min.

[0034] The preparation method...

Embodiment 3

[0039] A low-shrinkage silane cable material, comprising the following components in parts by weight: 100 parts of metallocene linear low-density polyethylene resin, 7 parts of ethylene-propylene copolymer resin, 3 parts of ethylene-octene copolymer resin, vinyltrimethoxysilane 2 parts, 0.04 parts of dicumyl oxide and 6 parts of catalytic masterbatch;

[0040] The catalytic masterbatch includes the following components by weight: 100 parts of metallocene linear low-density polyethylene resin, 0.125 parts of dibutyltin acetate, 0.125 parts of vinyl tributyltin, 0.125 parts of allyl tributyltin, dibutyltin maleate 0.125 parts, 2 parts of antioxidant 300, 0.6 parts of polyethylene wax and 0.4 parts of fluororubber;

[0041] Among them, the density of metallocene linear low density polyethylene resin is 0.935g / cm 3 , The melt flow rate is 100g / 10min; the melt flow rate of ethylene-propylene copolymer resin is 5g / min, and the melt flow rate of ethylene-octene copolymer resin is 6g...

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Abstract

The invention discloses a low-shrinkage silane cable material and a preparation method thereof. The cable material comprises the following components in parts by weight: 100 parts of polyethylene resin, 3-10 parts of ethylene-propylene copolymer resin, 1-5 parts of ethylene-octene copolymer resin, 1-5 parts of silane cross-linking agent, 0.02-0.05 part of initiating agent and 4-10 parts of catalytic masterbatch, wherein the catalytic masterbatch further comprises the following components in parts by weight: 100 parts of polyethylene resin, 0.5-1 part of low temperature catalyst, 1-2.5 parts ofantioxidant, and 0.5-1 part of lubricant. The cable material can effectively solve the problems of an existing cable material that in the production of the cable, the shrinkage rate is large, the production efficiency is low, the rejection rate is high, and the energy consumption is large.

Description

technical field [0001] The invention relates to the technical field of cable materials, in particular to a low-shrinkage silane cable material and a preparation method thereof. Background technique [0002] When cable factories use silane cross-linked polyethylene insulation materials to produce cables, they usually use extrusion dies and extruded tube dies for production. Because extruded tube dies have the advantages of simple operation and high production efficiency compared with extruded dies, they have become the most popular cable The first choice of manufacturers, especially in the production of irregular cables, extrusion die is irreplaceable. However, when the extrusion die is used to produce silane cross-linked polyethylene insulated cables, the stretching ratio is relatively large, and the faster stretching speeds up the crystallization between polyethylene molecules, which increases the shrinkage of cross-linked polyethylene; at the same time, silane cross-linkin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/16C08L23/06C08L101/04C08K5/134C08K5/375C08K5/25C08J3/24C08J3/22
CPCC08J3/226C08J3/246C08J2323/08C08J2400/102C08J2423/06C08J2423/08C08K5/1345C08K5/25C08K5/375
Inventor 王俊龙冯明艳
Owner 成都鑫成鹏高分子科技股份有限公司
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