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High-thermal-conductivity and high-voltage-resistant power cable sleeve and preparation method thereof

A power cable and high voltage resistance technology, which is applied in the field of high thermal conductivity and high voltage resistant power cable casing and its preparation, can solve the problems of inability to meet high standard requirements, limited high voltage resistance performance, uneven dispersion of thermal conductive metal additives, etc.

Inactive Publication Date: 2021-05-14
江苏新汇烽塑胶有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Patent CN103589045B discloses a high thermal conductivity and high voltage resistant power cable sleeve, which is made of raw materials such as polyolefin, thermal conductive metal additives, stiffening and toughening additives, and compatibilizers. Acid anhydride is used as a compatibilizer, and the thermal conductivity metal additive is in the form of nano-scale powder, but the dispersion uniformity of the whole system is still not ideal, and the thermal conductivity of the product is still not ideal
The improvement of the high-pressure resistance performance of this patent is inherently limited, and the heat-conducting metal additives directly added under high-pressure conditions are easy to disperse and become uneven in the system, which is far from meeting the high-standard requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A preparation method of high thermal conductivity and high voltage resistant power cable sleeve, first 100g fluorosilicone rubber, 30g nitrile rubber, 12g polyarylether nitrile-polysiloxane block copolymer, 10g amino-terminated liquid nitrile rubber, 7g Butyl stearate, 2g barium stearate, 3g ethylene bisstearamide and 3g triethylene glycol diisocaprylate are kneaded for the first time, then add 3g organic antimony stabilizer, 1g thiodipropionic acid Dilauryl ester, 3g flame retardant, 2g vulcanizing agent and 5g filler are kneaded for the second time to obtain a mixture, and finally the mixture is extruded and vulcanized to obtain the power cable sleeve; wherein the filler The preparation method is as follows:

[0034] (A) using attapulgite as a raw material to make nanorod crystal attapulgite, and then reacting nanorod crystal attapulgite with polyacrylonitrile to make nanorod crystal attapulgite-graphene composite;

[0035] (B) then adding the nano-aluminum nitride a...

Embodiment 2

[0049] A kind of preparation method of high thermal conductivity and high voltage resistant power cable bushing, first 100g fluorosilicone rubber, 40g nitrile rubber, 10g polyarylene ether nitrile-polysiloxane block copolymer, 12g amino-terminated liquid nitrile rubber, 5g Butyl stearate, 3g barium stearate, 2g ethylene bisstearamide and 4g triethylene glycol diisocaprylate are kneaded for the first time, then add 2g organic antimony stabilizer, 2g thiodipropionic acid Dilauryl ester, 2g flame retardant, 3g vulcanizing agent and 4g filler are kneaded for the second time to obtain a mixture, and finally the mixture is extruded and vulcanized to obtain the power cable sleeve; wherein, the filler The preparation method is as follows:

[0050] (A) using attapulgite as a raw material to make nanorod crystal attapulgite, and then reacting nanorod crystal attapulgite with polyacrylonitrile to make nanorod crystal attapulgite-graphene composite;

[0051] (B) then adding the nano-alum...

Embodiment 3

[0065] A kind of preparation method of high thermal conductivity and high voltage resistant power cable bushing, first 100g fluorosilicone rubber, 350g nitrile rubber, 11g polyarylene ether nitrile-polysiloxane block copolymer, 11g amino-terminated liquid nitrile rubber, 6g Butyl stearate, 2.5g barium stearate, 2.5g ethylene bisstearamide and 3.5g triethylene glycol diisocaprylate are kneaded for the first time, then add 2.5g organic antimony stabilizer, 1.5g Dilauryl thiodipropionate, 2.5g flame retardant, 2.5g vulcanizing agent and 4.5g filler are kneaded for the second time to obtain a compound, and finally the compound is extruded and vulcanized to obtain the power cable sheath Tube; Wherein, the preparation method of described filler is as follows:

[0066] (A) using attapulgite as a raw material to make nanorod crystal attapulgite, and then reacting nanorod crystal attapulgite with polyacrylonitrile to make nanorod crystal attapulgite-graphene composite;

[0067] (B) th...

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PUM

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Abstract

The invention provides a high-thermal-conductivity and high-voltage-resistant power cable sleeve and a preparation method thereof. The preparation method comprises the steps: enabling fluorinated silicone rubber, nitrile rubber, a polyarylene ether nitrile-polysiloxane block copolymer, amino-terminated liquid nitrile rubber, butyl stearate, barium stearate, ethylene bis stearamide and triethylene glycol di-2-ethylhexoate to be kneaded for the first time; adding the organic antimony stabilizer, the dilauryl thiodipropionate, the flame retardant, the vulcanizing agent and the filler, performing kneading for the second time to obtain a mixture, and finally performing extrusion molding and vulcanization on the mixture to obtain the flame-retardant rubber. The power cable sleeve has high thermal conductivity and high voltage resistance, can meet the requirements of power cables in special environments, and has an excellent popularization value.

Description

technical field [0001] The invention relates to the technical field of cable materials, in particular to a high thermal conductivity and high voltage resistant power cable casing and a preparation method thereof. Background technique [0002] Power cables are often used in urban underground power grids, outgoing lines of power stations, internal power supply of industrial and mining enterprises, and underwater transmission lines across rivers and seas. They are cables used to transmit and distribute electrical energy. In electrical installations, bushings are usually required to provide conduits for protecting wires and cable routing, allowing wires and cables to be inserted and replaced. [0003] The power cable will generate heat during normal work, which will increase the temperature of the power cable. However, due to the poor thermal conductivity of the plastic sleeve, it is difficult to transfer the heat to the soil in a timely manner, which will further increase the t...

Claims

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Application Information

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IPC IPC(8): C08L83/08C08L9/02C08L83/12C08L15/00C08K9/04C08K3/34C08K3/04C08K3/28
CPCC08L83/08C08L2205/035C08L2203/20C08K2201/011C08K2003/282C08L9/02C08L83/12C08L15/00C08K9/04C08K3/346C08K3/042C08K3/28
Inventor 徐红军
Owner 江苏新汇烽塑胶有限公司