Nuclear power cable insulating material of metal hydroxide-boron nitride hybridized filler/blended rubber and preparation method thereof

A hydroxide and cable insulation technology, applied in the field of cables, can solve problems such as poor compatibility, poor dispersion, and great influence on the mechanical properties of materials

Active Publication Date: 2019-07-23
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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  • Nuclear power cable insulating material of metal hydroxide-boron nitride hybridized filler/blended rubber and preparation method thereof
  • Nuclear power cable insulating material of metal hydroxide-boron nitride hybridized filler/blended rubber and preparation method thereof
  • Nuclear power cable insulating material of metal hydroxide-boron nitride hybridized filler/blended rubber and preparation method thereof

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 tests of its hot press vulcanized products are 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 insulation material for nuclear power cables. The performance tests of its hot press vulcanized products are 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 insulation material for nuclear power cables. The performance tests of its hot press vulcanized products are shown in Attached Table 1.

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Abstract

The invention discloses a nuclear power cable insulating material of a metal hydroxide-boron nitride hybridized filler/blended rubber and a preparation method thereof. The preparation method comprisesthe steps that metal hydroxide with methyl methacrylate and ionic liquid copolymer being grafted on is loaded on the surface of boron nitride, and then boron nitride is blended and compounded with EVA/ethylene propylene rubber, a cross-linking agent, a compatilizer and an anti-aging agent at the proper proportions. The invention utilizes the electronic insulation property, the radiation resistance and the ultrahigh adsorption property of boron nitride to load grafted and modified metal hydroxide to compose a radiation-resistant and capacity-increasing hybridized filler based on a modified filler, and meanwhile produces the nuclear power cable insulating material with the outstanding flame resistance, radiation resistance, electrical property, free halogen and low smoke and mechanical property by utilizing the radiation resistance of ionic liquid to improve the radiation resistance of the material.

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 Applications(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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