Radiation-resistant cable insulation material for nuclear power plant

A cable insulation and radiation-resistant technology, applied to rubber insulators, organic insulators, etc., can solve the problems of poor resistance to large doses of radiation steam, unqualified insulation performance, flame retardant performance, complex production process, etc., and achieve excellent radiation resistance performance , prevent short-circuit burning, and improve the effect of vulcanization conditions

Inactive Publication Date: 2015-06-03
ANHUI SPECIAL CABLE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the structure of the existing insulated wire core is a two-layer structure, the inner layer insulation is cross-linked polyethylene, which is used to provide insulation performance, and the outer layer insulation is a highly flame-retardant polyolefin material, which is used to provide high flame-retardant performance; However, there are the following technical problems: (1) the production process is complicated, the performance margin is small, and the insulation performance or flame retardancy performance is often unqualified; (2) the resistance to large doses of radiation and high temperature, water immersion, and steam performance poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A radiation-resistant cable insulation material for nuclear power plants proposed by the present invention, its raw materials include by weight: 120 parts of EPDM rubber, 70 parts of fluorosilicone rubber, 40 parts of polyimide, and 10 parts of ethylene-tetrafluoroethylene copolymer. 30 parts of lead oxide, 20 parts of rare earth oxide, 25 parts of zinc oxide, 5 parts of boron nitride, 22 parts of titanium nitride, 10 parts of organic bentonite, 45 parts of mica powder, bis(dioctyl phosphite) titanium 2 parts of tetraisopropyl acid, 5 parts of ethyl 3,3-bis-(tert-butylperoxy)butyrate, 0.4 parts of sulfur powder, 1 part of cross-linking aid TAIC, 0.8 parts of cross-linking aid HVA-2 , 4 parts of sodium cinnamate, 4 parts of magnesium oxide, 5 parts of acetyl trioctyl citrate, 3 parts of stearic acid, 5 parts of anti-aging agent 1010-A, 3 parts of anti-aging agent D-50, 2-(2′-hydroxy -2 parts of 3′,5′-di-t-pentylphenyl)benzotriazole.

Embodiment 2

[0017] A radiation-resistant cable insulation material for nuclear power plants proposed by the present invention, its raw materials include by weight: 105 parts of EPDM rubber, 77 parts of fluorosilicone rubber, 32 parts of polyimide, and 17 parts of ethylene-tetrafluoroethylene copolymer. 23 parts of lead oxide, 35 parts of rare earth oxide, 18 parts of zinc oxide, 11 parts of boron nitride, 19 parts of titanium nitride, 14 parts of organic bentonite, 37 parts of mica powder, bis(dioctyl phosphite) titanium 2.8 parts of tetraisopropyl acid, 3 parts of ethyl 3,3-bis-(tert-butylperoxy)butyrate, 0.8 parts of sulfur powder, 0.7 parts of cross-linking agent TAIC, and 1.2 parts of cross-linking agent HVA-2 , 2.3 parts of sodium cinnamate, 5.6 parts of magnesium oxide, 3 parts of acetyl trioctyl citrate, 5 parts of stearic acid, 3 parts of antioxidant 1010-A, 3.8 parts of antioxidant D-50, 2-(2′-hydroxy -1.3 parts of 3′,5′-di-t-pentylphenyl)benzotriazole.

Embodiment 3

[0019] A radiation-resistant cable insulation material for nuclear power plants proposed by the present invention, its raw materials include by weight: 110 parts of EPDM rubber, 75 parts of fluorosilicone rubber, 35 parts of polyimide, and 15 parts of ethylene-tetrafluoroethylene copolymer. 25 parts of lead oxide, 30 parts of rare earth oxide, 20 parts of zinc oxide, 10 parts of boron nitride, 20 parts of titanium nitride, 13 parts of organic bentonite, 40 parts of mica powder, bis(dioctyl phosphite) titanium 2.5 parts of tetraisopropyl acid, 3.5 parts of ethyl 3,3-bis-(tert-butylperoxy)butyrate, 0.7 parts of sulfur powder, 0.8 parts of crosslinking agent TAIC, 21 parts of crosslinking agent HVA-21, 3 parts of sodium cinnamate, 5 parts of magnesium oxide, 3.5 parts of acetyl trioctyl citrate, 4.5 parts of stearic acid, 3.5 parts of antioxidant 1010-A, 3.5 parts of antioxidant D-50, 2-(2′-hydroxy- 1.5 parts of 3',5'-di-t-pentylphenyl)benzotriazole.

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PUM

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Abstract

The invention discloses a radiation-resistant cable insulation material for a nuclear power plant. The radiation-resistant cable insulation material comprises the following raw materials in parts by weight: 100-120 parts of EPDM, 70-80 parts of fluorinated silicone rubber, 30-40 parts of polyimide, 10-20 parts of ETFE, 20-30 parts of lead oxide, 20-40 parts of rare earth oxide, 15-25 parts of zinc oxide, 5-15 parts of boron nitride, 18-22 parts of titanium nitride, 10-15 parts of organic bentonite, 35-45 parts of mica powder, 2-3 parts of di-(di-octyl phosphite) tetraisopropyl titanate, 2-5 parts of 3,3-bi-(tert-butyl peroxide) ethyl butyrate, 0.4-1 part of sulfur powder, 0.5-1 part of TAIC, 0.8-1.4 parts of HVA-2, 2-4 parts of sodium cinnamate, 4-6 parts of magnesium oxide, 2-5 parts of acetyl trioctyl citrate, 3-6 parts of stearic acid, 2-5 parts of anti-aging agent 1010-A and 1-2 parts of anti-aging agent D-503-4,2-(2'-hydroxyl-3',5'-tert-amyl phenyl) benzotriazole.

Description

technical field [0001] The invention relates to the technical field of cable materials, in particular to a radiation-resistant cable insulation material for nuclear power plants. Background technique [0002] Nuclear energy is a clean and efficient energy source. The cables used in nuclear power plants, especially the cables used in the containment, according to the third-generation AP1000 nuclear power standard, need to have a normal service life of 60 years in a radiation environment, and in the event of an accident or after the accident, they must withstand large doses of radiation and be able to withstand high temperatures. The safety function can be performed under severe conditions such as immersion, water, and steam, and its insulating core wire is also required to meet the single vertical burning test of IEC60332-1 and the high insulation resistance of the cable. These two indicators are mutually restricted, and high flame resistance is required Adding a large amoun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08L83/08C08L79/08C08L23/08C08K13/02C08K3/22C08K3/38C08K3/28C08K3/34C08K5/14C08K3/06C08K5/098C08K5/11H01B3/28
CPCC08L23/16C08L2201/02C08L2201/08C08L2203/202C08L2205/02C08L2205/035H01B3/28C08L83/08C08L79/08C08L23/0892C08K13/02C08K2003/2234C08K2003/221C08K2003/222C08K2003/2296C08K2003/382C08K3/28C08K3/34C08K3/346C08K5/14C08K3/06C08K5/098C08K5/11
Inventor 赖贵洲张冬冬何玮王翠玲
Owner ANHUI SPECIAL CABLE GRP
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