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Wear-resistant and aging-resistant cable sheath material

A cable sheath, anti-aging technology, applied in the direction of rubber insulators, organic insulators, etc., can solve the problems of poor wear resistance and aging resistance, cable friction damage, transmission performance deterioration, etc., to achieve excellent electrical insulation performance, chemical resistance The effect of good corrosion resistance and good mechanical strength

Inactive Publication Date: 2016-06-01
SUZHOU KEMAO ELECTRONICS MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the service life of the cable, the sheath must protect the cable core from moisture and other pollution. The degree of protection should keep the circuit performance in the cable core normal. Once too much moisture or other pollutants enter the cable core, the transmission performance will be affected. will seriously deteriorate
This requires the cable sheath to have high mechanical strength and internal toughness to prevent cracking or damage in harsh environments, resulting in abnormal cable transmission or potential safety hazards
[0003] Due to the particularity of the cable use environment, more stringent and diverse requirements are put forward for the cable sheath, which should have good insulation, flexibility, tensile strength, temperature resistance, flame retardancy, etc., otherwise the cable material will be damaged. The use performance of the product will change in one way or another, and even lose its use value
However, the traditional sheath materials have problems such as poor wear resistance and aging resistance. When the cable is dragged on the road, swayed on the building or in the mine, it is easy to cause friction damage, and it is prone to aging phenomena such as embrittlement during long-term use. Practical application brings a lot of inconvenience

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Example 1: A wear-resistant and anti-aging cable sheath material, including the following raw materials in parts by weight: 50 parts of EPDM rubber, 6622 parts of polyamide, 15 parts of modified muscovite powder, and 3 parts of wear-resistant additive 15 parts of semi-reinforcing carbon black, 3 parts of flame retardant additives, 1.5 parts of N-tert-butyl-2-benzothiazole sulfenamide, 3 parts of N,N'-m-phenylene bismaleimide , 5 parts of stearic acid, 0.8 parts of zinc dibutyldithiocarbamate, 1 part of anti-aging agent DPPD, 3 parts of white oil, 32.5 parts of enhancer DH-3;

[0015] The preparation method of the modified muscovite powder is as follows: after mixing the muscovite powder with a particle size of 500 mesh and the coupling agent KH-550 solution dissolved in the solvent, ultrasonically vibrate for 20 minutes, and then mechanically stir at 120°C for 70 minutes , put the obtained modified material in an oven and dry at 130° C. for 3 hours to remove excess solv...

Embodiment 2

[0017] Example 2: A wear-resistant and anti-aging cable sheath material, including the following raw materials in parts by weight: 40 parts of EPDM rubber, 6615 parts of polyamide, 10 parts of modified muscovite powder, and 2 parts of wear-resistant additive 1 part, 10 parts of semi-reinforcing carbon black, 1 part of flame retardant additive, 1 part of N-tert-butyl-2-benzothiazole sulfenamide, 2 parts of N, N'-m-phenylene bismaleimide , 3 parts of stearic acid, 0.5 parts of zinc dibutyldithiocarbamate, 0.5 parts of anti-aging agent DPPD, 2 parts of white oil, 32 parts of enhancer DH-32;

[0018] The preparation method of described modified muscovite powder is the same as embodiment 1.

[0019] Further, the amount of the coupling agent KH-550 is 1% of the mass of the muscovite powder; the solvent is a mixture of water and dimethylformamide, and its mass ratio is 3:1; the anti-wear additive It is molybdenum disulfide; the flame retardant additive is triphosphate.

Embodiment 3

[0020] Example 3: A wear-resistant and anti-aging cable sheath material, including the following raw materials in parts by weight: 60 parts of EPDM rubber, 6630 parts of polyamide, 20 parts of modified muscovite powder, and 5 parts of wear-resistant additive 2 parts, semi-reinforcing carbon black 20 parts, flame retardant additive 4 parts, N-tert-butyl-2-benzothiazole sulfenamide 2 parts, N, N'-m-phenylene bismaleimide 4 parts , 8 parts of stearic acid, 1 part of zinc dibutyldithiocarbamate, 1.5 parts of antioxidant DPPD, 5 parts of white oil, 33 parts of enhancer DH-33;

[0021] The preparation method of described modified muscovite powder is the same as embodiment 1.

[0022] Further, the amount of the coupling agent KH-550 is 1% of the mass of the muscovite powder; the solvent is a mixture of water and dimethylformamide, and its mass ratio is 3:1; the anti-wear additive It is molybdenum disulfide; the flame retardant additive is pentabromobenzyl polyacrylate.

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Abstract

The invention discloses a wear-resistant and aging-resistant cable sheath material. The material is prepared from, by weight, 40-60 parts of ethylene propylene diene monomer rubber, 15-30 parts of polyamide 66, 10-20 parts of modified white mica powder, 2-5 parts of a wear-resisting auxiliary agent, 10-20 parts of semi-reinforced carbon black, 1-4 parts of a flame-retardant auxiliary agent, 1-2 parts of N-tertiary butyl-2-benzothiazole sulfenamide, 2-4 parts of N, N'-m-phenylene dimaleimide, 3-8 parts of stearic acid, 0.5-1 part of zinc dibutyl dithiocarbamate, 0.5-1 part of an anti-aging agent DPPD, 2-5 parts of white oil and 2-3 parts of fortifier DH-3. The wear-resistant and aging-resistant cable sheath material is good in mechanical strength, wear resistance, aging resistance, weatherability, impact elasticity, chemical corrosion resistance and excellent in electrical insulation property, and meanwhile the modified white mica powder is adopted, so that the processing property of the ethylene propylene diene monomer rubber is improved, and the obtained cable sheath material can be used in environments with various climatic conditions.

Description

technical field [0001] The invention relates to the technical field of cable processing materials, in particular to a sheath material with good wear resistance and aging resistance for external use of cables. Background technique [0002] Wire and cable are the carriers of power transmission and information transmission, and are widely used in industrial and civil electrical facilities. Wires and cables are used in different environments or occasions and have different requirements, which puts forward higher requirements for the cable sheath covering the outside of the cable. The main function of the cable sheath is to mechanically and electrically protect the transmission cable from various conditions that will cause it to lose its transmission function. The cable jacket must fulfill this protective function during installation, splicing and throughout the service life of the cable. During the service life of the cable, the sheath must protect the cable core from moisture...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08L77/06C08L91/00C08L33/16C08K13/06C08K9/06C08K3/34C08K3/30C08K5/18C08K3/04C08K5/09C08K5/521H01B3/28
CPCC08K2201/003C08L23/16C08L2201/08C08L2203/202C08L2205/03C08L2205/035H01B3/28C08L77/06C08L91/00C08L33/16C08K13/06C08K9/06C08K3/34C08K2003/3009C08K5/18C08K3/04C08K5/09C08K5/521
Inventor 邹黎清
Owner SUZHOU KEMAO ELECTRONICS MATERIALS TECH
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