Pressure-proof insulating material

Abstract

The invention discloses a pressure-proof insulating material which comprises a pressure-proof glass insulating matrix and a nano insulating coating, wherein the pressure-proof glass insulating matrix comprises the following main compositions: quartz sand, sodium carbonate, limestone and feldspar; the nano insulating coating comprises nano modified epoxy resin, nanosize silica and nano ceramic fiber; the silicon dioxide content of the pressure-proof glass insulating matrix is not less than 85%. The pressure-proof insulating material disclosed by the invention has the characteristics of high rigidity, super-toughness, high temperature resistance, low temperature resistance, and superinsulation; the material can resist high-pressure local flashover, and can be used for manufacturing high-pressure glass insulators.

Description

technical field [0001] The invention relates to the field of insulating materials, in particular to a voltage-resistant insulating material. Background technique [0002] Insulator materials in the prior art generally choose insulating glass or ceramics, but ceramics are brittle materials, and the surface smoothness of ceramics is not as good as insulating glass. In order to improve the anti-fouling flashover performance of insulators, the effect of using pressure-resistant glass with high surface finish will be relatively good. However, after the insulators for high-voltage wires are used for a long time, local flashovers will occur. Therefore, the mechanical strength of the pressure-resistant glass surface is increased to increase its impact resistance, and to prevent the leakage current from the insulator surface from increasing, causing local arcs and flashovers. Contents of the invention [0003] The technical problem mainly solved by the present invention is to provi...

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Problems solved by technology

[0002] Insulator materials in the prior art generally choose insulating glass or ceramics, but ceramics are brittle materials, and the surface smoothness of ceramics is not as good as insulating glass. In order to improve the anti-fouling flashover performance of insulators, the effect of using pressure-resistant glass with high surface finish will be relatively good. However, after the insulators used for high-voltage wires are used for a long time, local flashovers will occur. Therefore, the mechanical strength of the pressure-resistant glass surface is increased to increase its impact resistance, and to prevent the leakage current from the insulator surface from increasing, resulting in local arcs and flashovers.