Sheathing material for power cables and preparation method thereof

A sheath material and power cable technology, applied in the direction of insulating cables, cables, circuits, etc., can solve the problems of reducing insulation and mechanical properties, aging and drying of the cable jacket layer, breakdown, ignition and burning, etc., to achieve enhanced physical and mechanical properties , Excellent anti-scorch effect, effect of improving tensile strength

Inactive Publication Date: 2014-05-14
ANHUI ZHONGTONG CABLE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And long-term overload operation, the operating temperature of the cable insulation material exceeds the maximum allowable temperature of normal heating, making the cable jacket layer aging and drying, and this phenomenon of insulation aging and drying usually occurs on the entire cable line, due to the aging of the cable insulation If the insulating material is dry, it will lose or reduce the insulating and mechanical properties of the insulating material, so it is easy to break down and burn, and even burn and catch fire at many places along the entire length of the cable. Well, the power cable sheath material with simple preparation process has become a technical problem that needs to be solved at present

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0018] The preparation method of above-mentioned cable sheath material comprises the steps:

[0019] S1. Weigh chlorosulfonated polyethylene, nitrile rubber, chlorinated butyl rubber, zinc dimethyldithiocarbamate, dibenzothiazole disulfide, active agent zinc oxide, stearic acid, N- Cyclohexylthiophthalamide, chlorinated paraffin, surfactant polyethylene glycol, potassium chloroplatinate, dioctyl phthalate, reinforcing agent carbon black, filler superfine talcum powder and filler calcium carbonate;

[0020] S2. Mix the chlorosulfonated polyethylene, nitrile rubber and chlorinated butyl rubber in S1 in an internal mixer for 10-13 minutes, then add active agents zinc oxide, stearic acid, chlorinated paraffin, surface activation The agent polyethylene glycol, potassium chloroplatinate, dioctyl phthalate, reinforcing agent carbon black, filler superfine talcum powder and filler calcium carbonate are mixed in the internal mixer for 12-15 minutes;

[0021] S3, adding N-cyclohexylth...

Embodiment 1

[0024] A sheath material for power cables, the raw materials of which include by weight: chlorosulfonated polyethylene: 12.5 parts, nitrile rubber: 3.7 parts, chlorinated butyl rubber: 8.9 parts, zinc dimethyl dithiocarbamate : 0.35 parts, dibenzothiazole disulfide: 0.66 parts, activator zinc oxide: 1.25 parts, stearic acid: 2.9 parts, N-cyclohexylthiophthalamide: 0.62 parts, chlorinated paraffin: 0.95 parts , Surfactant polyethylene glycol: 1.3 parts, potassium chloroplatinate: 1.7 parts, dioctyl phthalate: 1.7 parts, reinforcing agent carbon black 330: 6.7 parts, filler superfine talcum powder: 4.2 parts , filler calcium carbonate: 2.8 parts;

[0025] The filler superfine talcum powder has a particle size of 35 microns, a magnesium oxide content of 31.88%, a silicon dioxide content of 63.37%, and a water content of 4.75%.

[0026] In the present embodiment, the preparation method of the above-mentioned cable sheath material comprises the following steps:

[0027] S1. Weigh...

Embodiment 2

[0032] A kind of sheath material for power cables, its raw materials include by weight: chlorosulfonated polyethylene: 13.8 parts, nitrile rubber: 3.7 parts, chlorinated butyl rubber: 7.3 parts, zinc dimethyl dithiocarbamate: 0.38 parts, dibenzothiazole disulfide: 0.48 parts, active agent zinc oxide: 1.67 parts, stearic acid: 2.5 parts, N-cyclohexylthiophthalamide: 0.92 parts, chlorinated paraffin: 0.66 parts, Surfactant polyethylene glycol: 1.3 parts, potassium chloroplatinate: 1.98 parts, dioctyl phthalate: 1.7 parts, reinforcing agent carbon black 330: 6.7 parts, filler superfine talcum powder: 5 parts, Filler calcium carbonate: 2.6 parts;

[0033] The filler superfine talcum powder has a particle size of 39 microns, a magnesium oxide content of 31.88%, a silicon dioxide content of 63.37%, and a water content of 4.75%.

[0034] In the present embodiment, the preparation method of the above-mentioned cable sheath material comprises the following steps:

[0035] S1. Weigh c...

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Abstract

The invention discloses a sheathing material for power cables. The sheathing material comprises the following raw materials in parts by weight: 12-16 parts of chlorosulfonated polyethylene, 3-6 parts of butadiene-acrylonitrile rubber, 6-9 parts of chlorinated butyl rubber, 0.3-0.5 part of zinc dimethyldithiocarbamate, 0.3-0.7 part of dibenzothiazyl disulfide, 1.2-1.7 parts of an activator zinc oxide, 2-3 parts of stearic acid, 0.6-1 part of N-(cyclohexylthio)phthalimide, 0.5-1 part of chlorinated paraffin, 1-2 parts of a surfactant polyethylene glycol, 1.5-2 parts of potassium chloroplatinate, 1-4 parts of dioctyl phthalate, 4-7 parts of a reinforcing agent carbon black 330, 4-6 parts of a filler ultrafine talcum powder, and 2.5-4 parts of a filler calcium carbonate. The invention also discloses a preparation method of the sheathing material for power cables. According to the invention, the sheathing material for the power cables is good in mechanical properties, high in tensile strength, good in tear strength and wear resistance, excellent in aging resistance, simple in preparation process, and low in production cost.

Description

technical field [0001] The invention relates to the technical field of cable sheaths, in particular to a sheath material for power cables and a preparation method thereof. Background technique [0002] The wire and cable industry is the second largest industry in China after the automobile industry, and the product variety satisfaction rate and domestic market share both exceed 90%. Worldwide, China's wire and cable output has surpassed that of the United States, becoming the world's largest producer of wire and cable. With the rapid development of China's power cable industry, the number of new enterprises is increasing, and the overall technical level of the industry has been greatly improved. Power cables are used to transmit and distribute electric energy. Internal power supply and underwater transmission lines across rivers and seas. In power lines, the proportion of cables is gradually increasing. [0003] The protective lead skin of the power cable is damaged durin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/34C08L9/02C08L23/28H01B3/28H01B7/17C08K13/02C08K5/39C08K5/47C08K3/22C08K5/09C08K5/43C08K5/12C08K3/04C08K3/34C08K3/26
CPCC08L23/34C08L2203/202C08L2205/035H01B3/441H01B7/18
Inventor 卢蛟卢英斌黄伟叶银珠
Owner ANHUI ZHONGTONG CABLE TECH
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