Nuclear power 1E -level K1 cable insulation material and preparation process

A cable insulation and nuclear power technology, applied in organic insulators, plastic/resin/wax insulators, etc., can solve the problems of unsatisfactory radiation resistance and comprehensive physical and chemical properties, achieve excellent radiation resistance, good flame retardant effect, reduce surface effect of temperature

Active Publication Date: 2011-12-21
中科英华长春高技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a class 1E K1 cable insulation material for nuclear power, aiming to solve the problem that the existing cable insulation materials for nuclear power plants have unsatisfactory radiation resistance and other comprehensive physical and chemical properties, and contain a large amount of toxic substances

Method used

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  • Nuclear power 1E -level K1 cable insulation material and preparation process

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Experimental program
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Effect test

Embodiment 1

[0026] 100gLDPE-1I2A, 300g EVA1405, 12g antioxidant AT-10, 120g aluminum hydroxide, 80g magnesium hydroxide, 45g nitrogen flame retardant (FR-PN Shenzhen Hongtaiji Industrial Co., Ltd.), 35g EPDM Rubber 4045, 35g of high phenyl silicone rubber (phenyl content: 40%) was added to the internal mixer, mixed for 20 minutes at 135°C, then 20g of lubricant stearic acid, 15ml of sensitizer and 12ml of methyl mercaptan were added Tin heat stabilizer, knead for 10 minutes. To obtain 1E class K1 cable insulation material, press the material with a hydraulic press to prepare samples, and then irradiate 160KGy with an electron accelerator to obtain nuclear power 1E class K1 cable insulation material 1 # .

Embodiment 2

[0028] With 510gLDPE-1I2A, 10g antioxidant 7910, 185g aluminum hydroxide, 120g magnesium hydroxide, 70g nitrogen-based flame retardant (FR-PN Shenzhen Hongtaiji Industrial Co., Ltd.), 15g EPDM rubber, 10g phenylene Add silicone rubber (phenylene content: 28%, vinyl content: 0.98%, intrinsic viscosity: 0.95dl / g) into the internal mixer, mix at 135°C for 20 minutes, then add lubricant zinc stearate 20g, sensitize Mix 10ml of tin mercaptide heat stabilizer and 12ml of tin mercaptide heat stabilizer for 10 minutes. The 1E grade K1 cable insulation material was obtained, and the material was pressed into pieces by a hydraulic press to prepare samples, and then irradiated with an electron accelerator at 170KGy to obtain a nuclear power 1E grade K1 cable insulation material 2 # .

Embodiment 3

[0030] 520EVA630, 10g antioxidant 1010, 185g aluminum hydroxide, 115g magnesium hydroxide, 50g nitrogen-based flame retardant (FR-PN Shenzhen Hongtaiji Industrial Co., Ltd.), 15g high phenyl silicone rubber (phenyl content: 40 %), 15g phenylene silicone rubber (phenylene content: 28%, vinyl content 0.98%, intrinsic viscosity: 0.95dl / g), 12ml methyl mercaptide tin heat stabilizer, add in internal mixer, mix at 135°C Feed for 20 minutes, then add 20g of lubricant and 10ml of sensitizer, and knead for 10 minutes. To obtain 1E grade K1 cable insulation material, press the material with a hydraulic press to prepare samples, and then irradiate 250KGy with an electron accelerator to obtain nuclear power 1E grade K1 cable insulation material 3 # .

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Abstract

The invention provides a kind of 1E grade K1 cable insulation material for nuclear power, which is prepared by compounding and blending a flame retardant system, a plastic modifier and an anti-radiation additive to meet the requirements of a nuclear power plant. Long-life, radiation-resistant 1E-class K1 cable insulation material, its performance meets the relevant requirements of the IEEE383-2003 standard.

Description

technical field [0001] The invention provides a class 1E K1 cable insulating material for nuclear power, and also discloses a preparation process of the cable insulating material, which belongs to the technical field of special cables. Background technique [0002] Nuclear power plant 1E cables refer to safety-level products of electrical system equipment that complete the emergency shutdown of the reactor; containment isolation, emergency cooling of the core, export of residual heat from the reactor, heat export from the containment of the reactor; The safety categories of nuclear power plant electrical system equipment are divided into three categories: K1, K2, and K3. Among them, K1 products are generally installed in the containment of nuclear reactors, and must still be able to perform their specified functions under normal environmental conditions and under SL2 (safety shutdown ground motion) loads and during or after accidents. [0003] When the cable insulation mate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08L23/08C08L23/16C08L83/00C08L83/07C08K13/02C08K3/22C08K5/37H01B3/44B29B7/28B29C43/00B29C47/00
Inventor 徐义全冉祥海戚云霞尤丽萍
Owner 中科英华长春高技术有限公司
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