A kind of polyolefin thermoplastic elastomer cable sheath material and preparation method thereof

A thermoplastic elastomer, cable sheathing material technology, applied in the direction of insulated cables, plastic/resin/wax insulators, cables, etc., can solve the problems of hindering safe evacuation and fire extinguishing work, loss of life and property, etc., and achieves obvious flame retardant effect. Good wear resistance and small expansion deformation

Active Publication Date: 2016-03-16
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of the economy, wires and cables are widely used in various industries and fields, and electrical fire accidents occur frequently, and the flame retardant problem of wires and cables has gradually attracted the attention of countries all over the world. Excessive and corrosive gases are dangerous factors in fires, which hinder people's safe evacuation and fire fighting work, causing serious losses of life and property. The quality requirement of sheathing material is increasing day by day, the present invention provides a kind of polyolefin thermoplastic elastomer cable sheathing material and preparation method thereof

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Example 1: polyolefin thermoplastic elastomer cable sheathing material, the weight parts (kg) of its constituent raw materials are: polyolefin thermoplastic elastomer 60, natural rubber 22, zinc oxide powder 2.2, nano-scale titanium dioxide 16, modified nano-hydrogen Aluminum oxide powder 9.0, vulcanizing agent VA-70.6, accelerator BF2.0, tetraisopropyl bis (dioctyl phosphite acyloxy) titanate 3.4, calcium stearate 4.0, catechol 1.8, anti Dropping agent KY-G800.55 and chlorinated paraffin 1.2.

[0013] The preparation method of polyolefin thermoplastic elastomer cable sheath material comprises the following steps:

[0014] (1) Preparation: Weigh the nano-aluminum hydroxide powder according to the weight of the raw materials, and then add 1.6% of the total weight of the nano-aluminum hydroxide powder to 4,4'-diphenylmethane diisocyanate, 1.6% styrene and 2.3% Dicumyl peroxide, stirred evenly, controlled pressure 0.5Mpa, obtained modified nanometer aluminum hydroxide pow...

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Abstract

The invention discloses a polyolefin thermoplastic elastomer cable sheathing material and a preparation method thereof. The raw materials comprise a polyolefin thermoplastic elastomer, natural rubber, zinc oxide powder, nano titanium dioxide, modified nano aluminum hydroxide, a curing agent VA-7, an accelerator BF, tetraisopropyl di(dioctylphosphate) titanate, calcium stearate, catechol, an anti-dripping agent KY-G80 and chlorinated paraffin. The material provided by the invention adopts a polyolefin thermoplastic elastomer as a main material, has excellent electrical properties, good heat resistance, good aging resistance, good wear resistance, small expansion deformation under high temperature, and is conducive to secondary vulcanization processing, low-smoke, flame-retardant environment-friendly and safe; and through the modification treatment on a flame retardant nano aluminum hydroxide, the cable sheath gains greatly improved flame retardance and has obvious flame retardant effect.

Description

technical field [0001] The invention relates to a polyolefin thermoplastic elastomer cable sheath material and a preparation method thereof, belonging to the field of cable sheath material manufacturing. Background technique [0002] With the rapid development of the economy, wires and cables are widely used in various industries and fields, and electrical fire accidents occur frequently, and the flame retardant problem of wires and cables has gradually attracted the attention of countries all over the world. Excessive and corrosive gases are dangerous factors in fires, which hinder people's safe evacuation and fire fighting work, causing serious losses of life and property. The quality requirements of sheathing materials are increasing day by day. The invention provides a polyolefin thermoplastic elastomer cable sheathing material and a preparation method thereof. Contents of the invention [0003] The object of the present invention is to provide a polyolefin thermoplas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/00C08L7/00C08K13/06C08K9/04C08K3/22C08J3/28C08J3/24H01B3/30H01B7/17
CPCC08K2003/2241
Inventor 宋华茂丁倩杜荣良张礼莉刘华喜钮彬
Owner STATE GRID CORP OF CHINA
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