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A metal hydroxide-boron nitride hybrid filler/rubber-combined nuclear power cable insulating material and its preparation method

A hydroxide, cable insulation technology, applied in the field of cables, can solve the problems of poor compatibility, great influence on the mechanical properties of materials, poor dispersion, etc., to improve radiation resistance, good electrical properties, and excellent mechanical properties. Effect

Active Publication Date: 2021-08-17
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation of these nuclear-grade cable materials needs to add more flame-retardant fillers to ensure the required flame-retardant properties. Due to the poor compatibility between the flame-retardant fillers and the matrix, the dispersion becomes poor, which affects the mechanical properties of the material. big performance impact

Method used

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  • A metal hydroxide-boron nitride hybrid filler/rubber-combined nuclear power cable insulating material and its preparation method
  • A metal hydroxide-boron nitride hybrid filler/rubber-combined nuclear power cable insulating material and its preparation method
  • A metal hydroxide-boron nitride hybrid filler/rubber-combined nuclear power cable insulating material and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The components of the nuclear power cable insulation material in this embodiment are calculated by mass fraction as:

[0033]

[0034] The preparation method of the insulating material for nuclear power cables in this embodiment is as follows: first, the metal hydroxide grafted with methyl methacrylate and ionic liquid copolymer, micron boron nitride, nano boron nitride, ammonium polyphosphate, white carbon black and Put the anti-aging agent into the mixer, stir mechanically for 15-30 minutes until the mixture is uniform, and obtain the mixed filler; then masticate the ethylene-propylene rubber, EVA and compatibilizer in the open mill for 1-3 minutes, add the mixed filler, and ℃ for 10 minutes, then add dicumyl peroxide, zinc oxide, co-vulcanizing agent, and knead to obtain the insulation material for nuclear power cables. The performance test of its hot-press vulcanized products is shown in Attached Table 1.

Embodiment 2

[0036] The components of the nuclear power cable insulation material in this embodiment are calculated by mass fraction as:

[0037]

[0038]

[0039] The preparation method of the insulating material for nuclear power cables in this embodiment is as follows: first, the metal hydroxide grafted with methyl methacrylate and ionic liquid copolymer, micron boron nitride, nano boron nitride, ammonium polyphosphate, white carbon black and Put the anti-aging agent into the mixer, stir mechanically for 15-30 minutes until the mixture is uniform, and obtain the mixed filler; then masticate the ethylene-propylene rubber, EVA and compatibilizer in the open mill for 1-3 minutes, add the mixed filler, and ℃ for 10 minutes, then add dicumyl peroxide, zinc oxide, co-vulcanizing agent, and knead to obtain the nuclear power cable insulation material. The performance test of its hot-press vulcanized products is shown in Attached Table 1.

Embodiment 3

[0041] The components of the nuclear power cable insulation material in this embodiment are calculated by mass fraction as:

[0042]

[0043] The preparation method of the insulating material for nuclear power cables in this embodiment is as follows: first, the metal hydroxide grafted with methyl methacrylate and ionic liquid copolymer, micron boron nitride, nano boron nitride, ammonium polyphosphate, white carbon black and Put the anti-aging agent into the mixer, stir mechanically for 15-30 minutes until the mixture is uniform, and obtain the mixed filler; then masticate the ethylene-propylene rubber, EVA and compatibilizer in the open mill for 1-3 minutes, add the mixed filler, and ℃ for 10 minutes, then add dicumyl peroxide, zinc oxide, co-vulcanizing agent, and knead to obtain the nuclear power cable insulation material. The performance test of its hot-press vulcanized products is shown in Attached Table 1.

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Abstract

The invention discloses a metal hydroxide-boron nitride hybrid filler / rubber-combined cable insulating material for nuclear power plants and a preparation method thereof. The metal hydroxide grafted with methyl methacrylate and ionic liquid copolymer is loaded On the surface of boron nitride, it is blended with EVA / ethylene propylene rubber, crosslinking agent, compatibilizer, anti-aging agent, etc. in an appropriate proportion. Based on the modified filler, the invention constructs a radiation-proof and compatibilizing hetero At the same time, the radiation resistance of the ionic liquid is used to improve the radiation resistance of the material, and a nuclear power cable insulation material with flame retardancy, radiation resistance, good electrical performance, halogen-free, low smoke, and excellent mechanical properties is produced.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a metal hydroxide-boron nitride hybrid filler / rubber-combined nuclear power cable insulating material and a preparation method. Background technique [0002] As the safest, cleanest and most economical energy in the world today, nuclear power has become an important way for countries all over the world to solve energy problems. The safe operation of nuclear power plants requires the coordinated work of various systems, and the coordinated work of these systems depends on the "blood supply" of wires and cables-power transmission and signal transmission. Due to the particularity of the environment where nuclear energy is located, the conditions of its place of use are relatively harsh, and the safety requirements are high, so its requirements for wires and cables also have certain particularities. Not only must it have the general characteristics of ordinary cables, but it must als...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/08C08L23/16C08L51/06C08K13/06C08K9/08C08K3/22C08K3/38C08K3/32
CPCC08K2003/2224C08K2003/2227C08K2003/2296C08K2003/323C08K2003/385C08K2201/003C08K2201/011C08K2201/014C08L23/0853C08L23/16C08L2201/02C08L2201/08C08L2201/22C08L2203/202C08L2205/03C08L51/06C08K13/06C08K9/08C08K3/22C08K3/38C08K3/32
Inventor 徐佩阮钢王平丁运生
Owner HEFEI UNIV OF TECH
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