Unlock instant, AI-driven research and patent intelligence for your innovation.

Semiconductive shielding material for high-strength and high-temperature-resistant silane cross-linked cable and preparing method thereof

A silane cross-linking and high-temperature-resistant technology, which is applied in the direction of plastic/resin/wax insulators, organic insulators, etc., can solve the problems of easy brittleness and damage of the cable sheath, and achieve improved chemical stability, toughness, and low-temperature brittleness broken effect

Active Publication Date: 2015-12-09
江阴市海江高分子材料有限公司
View PDF3 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, when the ambient temperature drops below 10°C, the sheath of the cable is prone to embrittlement and damage. Improving the strength of the cable to adapt to the low temperature working environment is a problem that those skilled in the art need to think about

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] In this example, the semi-conductive shielding material for cables is prepared from the following raw materials by weight: 100 parts of EVA, 30 parts of conductive carbon black, 10 parts of POE, 3 parts of PP (polypropylene, number average molecular weight 80000-120000), p-phenylene 3 parts of diamine, 5 parts of stearic acid, 1 part of p-hydroxybenzenesulfonic acid, POE is silane-grafted POE, the mass content of octene in POE is 20-30%, and the density is 0.88±0.015g / cm 3 , the silane coupling agent used is γ-(2,3-glycidoxy)propyltrimethoxysilane, the concentration of the silane coupling agent is 1.2 (wt)%, the aqueous solution of ethanol is used as the solvent, ethanol and water Mix at a volume ratio of 1:8, and add 0.25 (wt)% acrylic acid to the solution.

[0019] The preparation method of the shielding material is to mix EVA, conductive carbon black, silane cross-linked POE, p-phenylenediamine, and stearic acid in an internal mixer, and carry out initial internal mi...

Embodiment 2

[0021] In this embodiment, the semi-conductive shielding material for cables is prepared from the following raw materials by weight, 100 parts of EVA, 32 parts of conductive carbon black, 8 parts of POE, 3 parts of PC (polycarbonate, number average molecular weight is 15000-25000), 2 , 2 parts of 6-tertiary butyl-4-methylphenol, 6 parts of white oil, 1 part of p-hydroxybenzenesulfonic acid, wherein POE is silane-grafted POE, and the mass content of octene in POE is 20-30% , the density is 0.88±0.015g / cm 3 , the silane coupling agent used is γ-(methacryloyloxy)propyltrimethoxysilane, the concentration of the silane coupling agent is 2.0 (wt)%, and the aqueous solution of ethanol is used as the solvent, and the ratio of ethanol and water is 1: The volume ratio of 6 is mixed, and 0.35 (wt)% of 2-hydroxysuccinic acid is added to the solution.

[0022] The preparation method of the shielding material is to mix EVA, conductive carbon black, silane-crosslinked POE, 2,6-tertiary buty...

Embodiment 3

[0024] In this embodiment, the semi-conductive shielding material for cables is prepared from the following parts by weight: 100 parts of EVA, 32 parts of conductive carbon black, 8 parts of POE, 2 parts of PC, 3 parts of diphenylamine, 5 parts of a mixture of polyethylene wax and paraffin wax, 1 part of p-hydroxybenzenesulfonic acid, of which POE is silane-grafted POE, the mass content of octene in POE is 20-30%, and the density is 0.88±0.015g / cm 3 , the silane coupling agent used is vinyltriethoxysilane, the concentration of the silane coupling agent is 0.5 (wt)%, the aqueous solution of ethanol is used as the solvent, and the volume ratio of ethanol and water is 1:10. Add 0.3 (wt)% 2-hydroxysuccinic acid to the solution.

[0025] The preparation method of the shielding material is to mix the mixture of EVA, conductive carbon black, silane crosslinked POE, diphenylamine, polyethylene wax and paraffin evenly in the internal mixer, carry out the initial internal mixing at 50-6...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
densityaaaaaaaaaa
tensile strengthaaaaaaaaaa
densityaaaaaaaaaa
Login to View More

Abstract

The invention relates to a semiconductive shielding material for a high-strength and high-temperature-resistant silane cross-linked cable and a preparing method thereof. The semiconductive shielding material is prepared from, by mass, 100 parts of EVA, 25 parts to 35 parts of conductive carbon black, 8 parts to 12 parts of POE, 2 parts to 3 parts of performance additives, 2 parts to 3 parts of antioxidants, 4 parts to 7 parts of plasticizers and 0.5 part to 2 parts of p-hydroxybenzenesulfonic acid, wherein the POE is POE for silane cross-linking. The preparing method includes the steps that in an internal mixer, the EVA, the conductive carbon black, the POE, the antioxidants and the plasticizers are evenly mixed, primary internal mixing is carried out at the temperature of 50 DEG C to 60 DEG C, and then extruding is carried out through a signal screw; then the performance additives and the p-hydroxybenzenesulfonic acid are added, secondary internal mixing is carried out, cured rubber is extruded through double screws, prilled and dried through air, and the semiconductive shielding material is obtained. The toughness of the finished cable prepared through the shielding material in the low temperature environment is improved, and meanwhile the cable has better high temperature resistance.

Description

technical field [0001] The invention relates to a high-strength, high-temperature resistant semi-conductive shielding material for cables and a preparation method thereof. Background technique [0002] After the implementation of the European Union's ROHS directive, it is clearly stipulated that the use of six hazardous substances in electrical and electronic equipment will be strictly restricted. Although PVC wires and cables have not been completely restricted, the global demand for halogen-free wires and cables continues to increase. The development of high-quality halogen-free flame-retardant and environmentally friendly cable materials will be a new topic. [0003] A new type of thermoplastic elastomer of ethylene (propylene)-α-olefin copolymer - polyolefin elastomer (Polyolefin elastomer, referred to as POE) is saturated in molecular chains and is a non-polar material, so it has good electrical insulation, oxygen resistance, ozone resistance and High temperature aging...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/12C08L69/00C08K13/02C08K5/42C08K3/04C08K5/18C08K5/098C08K5/375C08K5/13H01B3/44
CPCC08K2201/001C08L23/0853C08L2201/08C08L2203/202C08L2205/02C08L2205/03C08L2205/035C08L2205/08C08L2312/08H01B3/44C08L23/0815C08L23/12C08K13/02C08K3/04C08K5/42C08K5/18C08K5/098C08L69/00C08L91/00C08K5/13C08L23/06C08L91/06C08K5/375
Inventor 张国清张宁吴海军薛元凤
Owner 江阴市海江高分子材料有限公司