IE-grade KI -type cable insulation material for nuclear power and preparation technology thereof

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

Active Publication Date: 2010-02-17
中科英华长春高技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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

Method used

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  • IE-grade KI -type cable insulation material for nuclear power and preparation technology thereof

Examples

Experimental program
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Example Embodiment

[0025] Example 1

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

Example Embodiment

[0027] Example 2

[0028] Combine 510gLDPE-1I2A, 10g antioxidant 7910, 185g aluminum hydroxide, 120g magnesium hydroxide, 70g nitrogen flame retardant (FR-PN Shenzhen Hongtaiji Industrial Co., Ltd.), 15g EPDM rubber, 10g phenylene Silicone rubber (phenylene content: 28%, vinyl content: 0.98%, intrinsic viscosity: 0.95dl / g) was added to the internal mixer, mixed at 135°C for 20 minutes, and then added with lubricant zinc stearate 20g, sensitized Mixing 10ml and 12ml methyl tin mercaptan heat stabilizer for 10 minutes. Obtained 1E-class K1 cable insulation material, this material was sampled with a hydraulic press, and then irradiated 170KGy with an electron accelerator to obtain nuclear power 1E-class K1 cable insulation material 2 # .

Example Embodiment

[0029] Example 3

[0030] Combine 520EVA630, 10g antioxidant 1010, 185g aluminum hydroxide, 115g magnesium hydroxide, 50g nitrogen 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 tin mercaptan heat stabilizer is added to the internal mixer, mixed at 135 ℃ Mix for 20 minutes, then add 20g lubricant flying stream, 10ml sensitizer, and mix for 10 minutes. Obtain 1E class K1 cable insulation material, use a hydraulic press to make samples, and then irradiate 250KGy with an electron accelerator to obtain nuclear power 1E class K1 cable insulation material 3 # .

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Abstract

The invention provides an IE-grade KI-type cable insulation material for nuclear power. A compound flame-retardant system, a plastic modifier and an irradiation resistant additive are compounded, mixed together and modified to prepare the IE-grade KI-type cable insulation material with long service life and irradiation resistance, which are required by a nuclear power station, and the property ofthe IE grade and KI part cable insulation material meets the related requirement 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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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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