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Radiation-resistant cross-linked ethylene-tetrafluoroethylene copolymer insulating material

A technology of tetrafluoroethylene and cross-linked ethylene, used in insulators, organic insulators, plastic/resin/wax insulators, etc., can solve the problems of high smoke generation, easy self-polymerization of cross-linking agents, and radiation resistance to be improved. , to achieve the effect of excellent radiation resistance, efficient radiation resistance, and improved radiation resistance

Active Publication Date: 2022-04-05
中广核高新核材科技(苏州)有限公司
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  • Description
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  • Application Information

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Problems solved by technology

The Chinese patent application number 201510059128.X discloses a cross-linked ethylene-tetrafluoroethylene copolymer insulating material, which solves the problem of high smoke generation, easy self-polymerization of cross-linking agents, and relatively high processing temperature requirements during the processing of XETFE insulating materials. Harsh problem, but its radiation resistance needs to be improved

Method used

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  • Radiation-resistant cross-linked ethylene-tetrafluoroethylene copolymer insulating material
  • Radiation-resistant cross-linked ethylene-tetrafluoroethylene copolymer insulating material
  • Radiation-resistant cross-linked ethylene-tetrafluoroethylene copolymer insulating material

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Embodiment 1-4

[0022] The composition of the radiation-resistant crosslinked ethylene-tetrafluoroethylene copolymer insulating material of the present invention is shown in Table 1, and the dosage of each component is by mass.

[0023] Radiation-resistant crosslinked ethylene-tetrafluoroethylene copolymer insulating material in Table 1 embodiment 1-4

[0024]

[0025] Among them, in Examples 1-4, the specific information of ethylene-tetrafluoroethylene copolymer, crosslinking agent and radiation-resistant components is shown in Table 2. The melt index of ethylene-tetrafluoroethylene copolymer is 6-40g / 10min.

[0026] The information of different substances in the embodiment 1-4 of table 2

[0027] Example 1 Example 2 Example 3 Example 4 Group X in the crosslinking agent Allyl Methallyl vinyl Allyl Polymerization degree of crosslinking agent n 3 5 2 1 The group R in the radiation-resistant component (CH 2 ) 2

(CH 2 ) 3

(CH 2 )...

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Abstract

The invention relates to a radiation-resistant crosslinked ethylene-tetrafluoroethylene copolymer insulating material, which comprises the following components in parts by mass: 100 parts of ethylene-tetrafluoroethylene copolymer, 3-8 parts of crosslinking agent, N, N' ‑Bis[β‑(3,5‑di-tert-butyl‑4‑hydroxyphenyl)propionyl]hydrazine0.1~1 part, 1,3,5‑tris(3,5‑di-tertbutyl‑4‑hydroxy 0.3-3 parts of benzyl)isocyanuric acid, 1-3 parts of antimony pentoxide, 0.1-2 parts of N,N'-ethylene bisstearamide, 0.1-0.5 parts of pentaerythritol stearate, radiation-resistant group 2 to 10 parts, 0.1 to 3 parts of white oil. The invention can more stably and efficiently improve the radiation resistance performance of the crosslinked ethylene-tetrafluoroethylene copolymer insulating material.

Description

technical field [0001] The invention relates to an insulating material, in particular to a radiation-resistant cross-linked ethylene-tetrafluoroethylene copolymer insulating material. Background technique [0002] Insulation materials and sheath materials for aerospace cables and nuclear power cables are made of insulating materials. These materials will be subject to certain radiation during use, and radiation will cause irreversible damage to polymer materials, which will affect the performance of polymer material products and even make them invalid. Therefore, in some special fields, such as aerospace, Nuclear power, etc. put forward high radiation resistance requirements for polymer materials, especially cable materials. [0003] Due to its high temperature resistance, corrosion resistance, excellent mechanical properties, radiation resistance, and light weight, cross-linked ethylene-tetrafluoroethylene copolymer insulation materials are widely used in the aerospace fie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/08C08L91/06C08K13/02C08K5/3492C08K5/3417C08K5/20C08K5/103H01B3/44
CPCC08L23/0892H01B3/441C08L2201/08C08L2203/202C08K2201/014C08L91/06C08K13/02C08K5/34922C08K5/3417C08K5/20C08K5/103
Inventor 史丛丛
Owner 中广核高新核材科技(苏州)有限公司
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