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Nuclear power 1E-grade K1-type thermal shrinkage cable accessory material and preparation method thereof

A heat-shrinkable cable and nuclear power technology, applied in the direction of nuclear power generation, greenhouse gas reduction, climate sustainability, etc., can solve the problems of heat-shrinkable cable accessories, etc., achieve significant toughening effect, improve thermal stability, and improve dispersion effect Effect

Active Publication Date: 2021-06-25
中科英华长春高技术有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a 1E grade K1 heat-shrinkable cable accessory material for nuclear power Hualong No. 1, which solves the demand problem of nuclear power Hualong No. 1E grade K1 heat-shrinkable cable accessories

Method used

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  • Nuclear power 1E-grade K1-type thermal shrinkage cable accessory material and preparation method thereof
  • Nuclear power 1E-grade K1-type thermal shrinkage cable accessory material and preparation method thereof
  • Nuclear power 1E-grade K1-type thermal shrinkage cable accessory material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 120g LDPE18D0, 120g POE810, 5g antioxidant 1010, 2.5g antioxidant DLTP, 2.5g antioxidant 168, 90g aluminum hydroxide, 90g magnesium hydroxide, 60g lignin-based flame retardant, 10g methyl mercaptan Tin heat stabilizer is added in the internal mixer, 10g carbon black N330, 3g methyl vinyl phenyl silicone rubber raw rubber (30wt% of its phenyl content, 0.5wt% vinyl content, molecular weight 350,000 g / mol), 20g Methyl-β-nitrile ethyl siloxane rubber (the β-nitrile ethyl siloxane content is 20wt%, vinyl content is 0.15wt%, molecular weight is 600,000 g / mol), 15g sensitizer, mixed at 135°C In 30 minutes, Hualong No. 1 Class 1E K1 heat-shrinkable cable accessory materials were obtained. This material was pressed into tablets with a hydraulic press to prepare samples, and then irradiated with an electron accelerator at 150KGy to obtain sample 1 # .

Embodiment 2

[0027] Heat 140g LDPE18D0, 120g POE8150, 6g antioxidant 1010, 3g antioxidant DLTP, 3g antioxidant 168, 100g aluminum hydroxide, 100g magnesium hydroxide, 70g lignin-based flame retardant, 12g methyl tin mercaptide Stabilizer, 12g carbon black N330, 2g methyl vinyl phenyl silicone rubber raw rubber (30wt% phenyl content, 0.5wt% vinyl content, molecular weight 350,000 g / mol), 18g methyl-β-nitrile acetonitrile Silicone rubber (its β-nitrile ethylsiloxane content is 20wt%, vinyl content is 0.15wt%, molecular weight is 600,000 g / mol), 18g sensitizer is added in the internal mixer, and mixed at 135°C for 28 Minutes, get Hualong No. 1E grade K1 heat shrinkable cable accessories materials. This material is pressed into tablets with a hydraulic press to prepare samples, and then irradiated with an electron accelerator at 160KGy to obtain sample 2 # .

Embodiment 3

[0029] Heat 130g LDPELD605, 150g POE875, 6g antioxidant 1010, 3g antioxidant DLTP, 3g antioxidant 168, 100g aluminum hydroxide, 100g magnesium hydroxide, 70g lignin-based flame retardant, 12g methyl tin mercaptide Stabilizer, 12g carbon black N330, 3g methyl vinyl phenyl silicone rubber raw rubber (its phenyl content is 30wt%, vinyl content is 0.5wt%, molecular weight is 350,000 g / mol), 20g methyl-β-nitrile acetonitrile Silicone rubber (its β-nitrile ethylsiloxane content is 20wt%, vinyl content is 0.15wt%, molecular weight is 600,000 g / mol), 18g of sensitizer is added to the internal mixer, and mixed for 31 hours at 135°C Minutes, get Hualong No. 1E class K1 heat-shrinkable cable accessory material masterbatch. This material was pressed into tablets with a hydraulic press to prepare samples, and then irradiated with an electron accelerator at 160KGy to obtain sample 3 # .

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Abstract

The invention discloses a nuclear power 1E-grade K1-type thermal shrinkage cable accessory material which is prepared from the following raw materials in parts by weight: 30-60 parts of polyolefin resin, 30-60 parts of a flame retardant, 0.5-1 part of an anti-irradiation modifier, 4-10 parts of an oil-resistant and corrosion-resistant modifier, 2-4 parts of an antioxidant, 2-5 parts of a heat stabilizer and 1-10 parts of a plastic processing aid. The thermal life of the thermal shrinkage cable accessory prepared from the accessory material is tested to exceed 60 years at 90 DEG C, and the thermal shrinkage cable accessory can meet the use requirement that the cumulative dose is 2500 kGy within 60 years in a nuclear power plant shell; and the electrical performance can still be kept unchanged in an accident state, under the impact of high-temperature and high-pressure steam, under the action of corrosive chemical agents and under a grease environment.

Description

technical field [0001] The invention belongs to the technical field of heat-shrinkable materials, and in particular relates to a nuclear power 1E class K1 heat-shrinkable cable accessory material and a preparation process thereof. Background technique [0002] "Hualong One" was developed by CNNC and CGNPC, China's two major nuclear power companies, based on more than 30 years of experience in nuclear power research, design, manufacturing, construction and operation in my country, based on the feedback from the Fukushima nuclear accident experience and the latest safety requirements in my country and the world , the advanced mega-kilowatt pressurized water reactor nuclear power technology developed. As the main brand of China's nuclear power "going global", in terms of design innovation, "Hualong One" puts forward the safety design concept of "combining active and passive", adopting a reactor core with 177 fuel assemblies and multiple redundant safety The system, single stack...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/08C08L97/00C08L83/07C08L83/08C08K13/02C08K3/22C08K5/134C08K5/372C08K5/526C08K3/04C08K5/58
CPCC08L23/06C08L23/0815C08L23/0853C08L2201/02C08L2201/22C08L2201/08C08K2003/2227C08K2003/2224C08L2207/066C08L2203/202C08L97/005C08L83/04C08L83/08C08K13/02C08K3/22C08K5/1345C08K5/372C08K5/526C08K3/04C08K5/58Y02E30/30
Inventor 戚云霞付明星任天磊徐义全程强
Owner 中科英华长春高技术有限公司
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