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Dielectric isolation material taking thermosetting resin as matrix and preparation method of material

A dielectric isolation and thermosetting technology, which is applied in the field of electrical insulation composite materials, can solve the problems of melting, anti-static dielectric isolation performance deterioration, etc., and achieve good mechanical properties and good electrical insulation.

Pending Publication Date: 2021-05-11
YIBIN SANJIANG MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a dielectric isolation material based on a thermosetting resin to solve the problem that the existing dielectric isolation material will melt under high temperature conditions, resulting in poor antistatic and dielectric isolation properties

Method used

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  • Dielectric isolation material taking thermosetting resin as matrix and preparation method of material
  • Dielectric isolation material taking thermosetting resin as matrix and preparation method of material
  • Dielectric isolation material taking thermosetting resin as matrix and preparation method of material

Examples

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Effect test

Embodiment 1

[0039] A dielectric isolation material based on a thermosetting resin, which is a composite material made of the following raw materials by mass: 60% to 80% of E glass fiber, conductive carbon black (CB) and F-48 resin (phenolic aldehyde Type epoxy resin, including curing agent), the sum is 40% to 20%, the ratio of CB to F-48 resin is 0.5:99.5, and the average particle size of CB is 10nm;

[0040] The preparation method of this material comprises the following steps:

[0041] A. Disperse CB evenly in F-48 resin, and then vacuum defoam the dispersed glue until there are no bubbles in the glue;

[0042] B. Immerse the E glass fiber in the glue solution of step A until the fiber is completely soaked, and the time for complete soaking is 24 hours, then remove the excess glue solution in the fiber, so that the average amount of glue dipped in the E glass fiber is 40%, 30% respectively %, 20%, and then undergo vacuum defoaming treatment until there are no air bubbles in the fibers...

Embodiment 2

[0047] A dielectric isolation material based on a thermosetting resin, which is a composite material made of the following raw materials by mass: 65% to 80% of basalt fiber braid, CB and E-44 resin (bisphenol A ring Oxygen resin, containing curing agent) is 35% to 20%, the ratio of CB to E-44 resin is 7:93, and the average particle size of CB is 10nm;

[0048] The preparation method of this material comprises the following steps:

[0049] A. Disperse CB evenly in E-44 resin, and then perform centrifugal degassing treatment on the dispersed glue until there are no bubbles in the glue;

[0050] B. Immerse the basalt fiber braid in the glue solution of step A for 24 hours until the fiber is completely soaked, then remove the excess glue solution in the fiber braid, so that the average amount of glue dipped in the fiber braid is 35%, 25%, 20% , and then undergo vacuum defoaming treatment until there are no air bubbles in the fiber braid impregnated with glue;

[0051] C. Curin...

Embodiment 3

[0055] A dielectric isolation material based on a thermosetting resin, which is a composite material made of the following raw materials by mass: E glass fiber (single filament diameter 9.5-10.5μm) 60%-80%, ultra-fine graphite powder The sum of the graphite powder and the silicone resin is 40% to 20%, the ratio of the ultrafine graphite powder to the silicone resin is 5:95, and the average particle size of the ultrafine graphite powder is 20nm;

[0056] The preparation method of this material comprises the following steps:

[0057] A. Evenly disperse the ultra-fine graphite powder in the silicone resin, and then vacuum defoam the dispersed glue until there are no bubbles in the glue;

[0058] B. Immerse the E glass fiber in the glue solution of step A for 20 hours until the fiber is completely soaked, then remove the excess glue solution in the fiber, so that the average amount of glue dipped in the E glass fiber is 40%, 30%, 20%, and then Vacuum defoaming treatment until th...

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Abstract

The invention discloses a dielectric isolation material taking thermosetting resin as a matrix and a preparation method of the dielectric isolation material, and belongs to the technical field of electrical insulation composite materials. According to the invention, the dielectric isolation material is prepared by dispersing a static dissipative agent in the thermosetting resin matrix, dipping continuous fibers in a glue solution and carrying out defoaming, low-temperature pre-curing, high-temperature curing and other processes. The resistivity of the dielectric isolation material can reach 104-1010 omega.cm, and the dielectric isolation material has the mechanical properties of high tensile strength and high tensile modulus and can be applied to the field of high-temperature curing. And after 6 times of electric shock with a voltage of more than 10 kV, the performance of the material is kept unchanged. The material and preparation method thereof have the advantages of simple and feasible industrial implementation, low production cost and short curing time, has the obvious effects of static electricity conduction and strong current blocking when being used for lightning isolation and protection, and is easy to popularize and apply in general industries as a lightning protection material.

Description

technical field [0001] The invention relates to a dielectric isolation material used for a dielectric isolator. More specifically, the invention relates to a dielectric isolation material with a thermosetting resin as a matrix and a preparation method thereof, belonging to the technical field of electrical insulation composite materials. Background technique [0002] With the development of science and technology and people's yearning for a better life, energy consumption is increasing. To solve energy problems, in addition to developing renewable energy, energy conservation is an important measure taken by countries all over the world. For vehicles, reducing the self-weight of vehicles and improving the utilization rate of vehicles has become an important direction of development. Among them, the use of polymer composite materials with lower density to replace metals has achieved good results. As a special vehicle, aircraft has a stronger demand for low-density, high-streng...

Claims

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Application Information

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IPC IPC(8): C08L63/04C08L63/00C08L83/04C08L67/06C08L77/10C08K7/14C08K3/04C08K7/10C08J5/24
CPCC08J5/24C08K7/14C08K3/04C08K7/10C08L67/06C08J2363/04C08J2363/00C08J2383/04C08J2367/06C08J2477/10C08K2201/001C08L63/04C08L63/00C08L83/04C08L77/10
Inventor 施华曾林罗强廖勇策
Owner YIBIN SANJIANG MACHINERY
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