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Organosilane crosslinked polyethylene cable material and preparation process thereof

A silane cross-linking and preparation technology, which is applied in the direction of plastic/resin/wax insulators, organic insulators, etc., can solve the problems of complex granulation process and cable forming process, and achieve the effect of simplifying granulation process and cable forming process

Active Publication Date: 2012-05-09
RUGAO ZHONGRU CHEM
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Problems solved by technology

[0002] The traditional production method in the past is a two-step method, that is, separate matrix masterbatch and catalytic cross-linking masterbatch. In the cable forming process, the two masterbatches are mixed and then cabled, and then undergo post-treatment, granulation process and cable forming process. complex

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  • Organosilane crosslinked polyethylene cable material and preparation process thereof

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Embodiment Construction

[0008] 100 parts by mass of low-density polyethylene resin is used as a standard, and vinyltrimethoxysilane A171: 2.5-4 parts by mass, dicumyl peroxide DCP: 0.2-1 parts by mass, di-n-butyltin laurate: 0.2 parts by mass, Tetrakis-β-[3.5 di-tert-butyl-4-hydroxybenzene in pentacentritol propionate): 0.2 parts by mass.

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Abstract

The invention discloses an organosilane crosslinked polyethylene cable material, wherein the mass ratio of vinyl trimethoxy silane serving as a cross-linking agent, dicumyl peroxide serving as a cross-linking agent initiator, and butyltin dilaurate serving as a catalyst is (2.5-4): (0.2-1): 0.2. The preparation process is a one-step method, comprising the following steps of: mixing pre-mix materials and then directly granulating to obtain particles in a semi-cross-linking state, wherein the mixing temperature is 100-120 DEG C and the mixing speed is 960 rpm; and discharging at the mixing temperature of 140-145 DEG C by using a dual-screw machine at the speed of 300-400 RPM. The organosilane crosslinked polyethylene cable material and the preparation method thereof disclosed by the invention have the following advantages that: with adoption of the components, the organosilane crosslinked polyethylene cable material is prepared by using the one-step method, the granulating process of the cable material and the cable molding process are simplified.

Description

technical field [0001] The invention mainly relates to a silane cross-linked polyethylene cable material, specifically a silane cross-linked polyethylene cable material with low-density polyethylene resin as the main material; Granulation, the method of obtaining the silane cross-linked polyethylene cable material of the granular material in the semi-cross-linked state. Background technique [0002] The traditional production method in the past is a two-step method, that is, separate matrix masterbatch and catalytic cross-linking masterbatch. In the cable forming process, the two masterbatches are mixed and then cabled, and then undergo post-treatment, granulation process and cable forming process. complex. Contents of the invention [0003] The main task of the present invention is to provide a silane cross-linked polyethylene cable material, specifically a silane cross-linked polyethylene cable material whose gel content can be controlled below 30%. [0004] In order t...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08K5/5425C08J3/24H01B3/44
Inventor 蔡可建黄宏才张海波周荣敬
Owner RUGAO ZHONGRU CHEM
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