Silicon rubber insulation composite material, preparation method and purpose thereof

A technology of silicone rubber insulation and composite materials, which is applied in the direction of rubber insulators, insulators, organic insulators, etc., which can solve the problems of inability to balance electrical and mechanical properties, and failure to improve electrical properties such as arc resistance and breakdown resistance of silicone rubber materials.

Active Publication Date: 2018-12-07
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above studies have improved the electrical corrosion resistance and mechanical properties of silicone rubber materials for insulators, they have not improve

Method used

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  • Silicon rubber insulation composite material, preparation method and purpose thereof

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Effect test

Embodiment 1

[0058] This embodiment provides a silicone rubber insulating composite material, including the following raw material components in parts by weight:

[0059] 100 parts of methyl vinyl silicone rubber, [Ca 0.8 Fe 0.17 Ce 0.03 (OH) 2 ](NO 3 ) 0.2 0.1H 2 30 parts of O, 10 parts of nano silicon spheres, 2 parts of vinyltrimethoxysilane, 1 part of 2,5-dimethyl-2,5-bis(tert-butylperoxy)hexane, 5 parts of methyl silicone oil , 4 parts of hydroxyl silicone oil and 1 part of hydrogen-containing silicone oil;

[0060] Among them, the methyl vinyl silicone rubber is composed of 50 parts of methyl vinyl silicone rubber with a vinyl molar content of 0.07% and 50 parts of methyl vinyl silicone rubber with a vinyl molar content of 0.30%; 50 The particle size is 50nm.

[0061] The preparation method of above-mentioned silicone rubber insulation composite material is as follows:

[0062] (1) Add silicone rubber, nano silicon balls and vinyl silane coupling agent into the internal mixe...

Embodiment 2

[0066] This embodiment provides a silicone rubber insulating composite material, including the following raw material components in parts by weight:

[0067] 105 parts of methyl vinyl silicone rubber, [Ca 0.8 Fe 0.17 Ce 0.03 (OH) 2 ](NO3 ) 0.2 0.1H 2 25 parts of O, 15 parts of nano silicon spheres, 1.5 parts of vinyltrimethoxysilane, 0.8 parts of 2,5-dimethyl-2,5-bis(tert-butylperoxy)hexane, 5 parts of methyl silicone oil , 4 parts of hydroxyl silicone oil and 1 part of hydrogen-containing silicone oil;

[0068] Among them, the methyl vinyl silicone rubber is composed of 35 parts of methyl vinyl silicone rubber with a vinyl molar content of 0.03% and 70 parts of methyl vinyl silicone rubber with a vinyl molar content of 0.2%; 50 The particle size is 30nm.

[0069] The preparation method of above-mentioned silicone rubber insulation composite material is as follows:

[0070] (1) Add silicone rubber, nano silicon balls and vinyl silane coupling agent into the kneader acc...

Embodiment 3

[0074] This embodiment provides a silicone rubber insulating composite material, including the following raw material components in parts by weight:

[0075] 115 parts of methyl vinyl silicone rubber, [Ca 0.8 Fe 0.17 Ce 0.03 (OH) 2 ](NO 3 ) 0.2 0.1H 2 35 parts of O, 5 parts of nano silicon spheres, 2.5 parts of vinyltrimethoxysilane, 1.5 parts of 2,5-dimethyl-2,5-bis(tert-butylperoxy)hexane, 5 parts of methyl silicone oil , 4 parts of hydroxyl silicone oil and 1 part of hydrogen-containing silicone oil;

[0076] Among them, the vinyl molar content of methyl vinyl silicone rubber is 0.25%; 50 The particle size is 100nm.

[0077] The preparation method of above-mentioned silicone rubber insulation composite material is as follows:

[0078] (1) Add silicone rubber, nano silicon balls and vinyl silane coupling agent into the internal mixer according to the formula, and mix at room temperature for 15 minutes;

[0079] (2) Add layered inorganic particles, vulcanizing agent...

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Abstract

The invention provides a silicon rubber insulation composite material, a preparation method and a purpose thereof. The silicon rubber insulation composite material comprises, by weight, 100-120 partsof a silicone rubber, 20-40 parts of a layered inorganic particle, 0.5-20 parts of a nanometer silicon ball, 1-3 parts of a vinyl silane coupling agent, 0.5-2 parts of a vulcanizing agent and 5-10 parts of an addition agent. The preparation method of the silicon rubber insulation composite material comprises the following steps of firstly, mixing the formula amounts of the silicone rubber, the nanometer silicon ball and the vinyl silane coupling agent; then, adding a residual raw material to mix; and finally using a vulcanization method to prepare the material. The silicon rubber insulation composite material provided in the invention has the advantages of high breakdown resistance, high arc resistance and a low dielectric loss and has a good mechanical property. The material can be used as the material of a direct current power transmission line composite insulator and is especially suitable for being used as the material of the composite insulator in a direct current casing pipe.

Description

technical field [0001] The invention belongs to the technical field of insulating materials, and in particular relates to a silicone rubber insulating composite material, its preparation method and application. Background technique [0002] Insulators are devices installed between conductors of different potentials or between conductors and ground potential components. They are usually used in power transmission lines to support and electrically insulate wires, and can be used for overhead power transmission lines. Silicone rubber composite insulator is currently a more commonly used insulator. Compared with traditional ceramic or glass insulators, it has the advantages of high strength, light weight, high pollution flashover voltage resistance, not easy to break, and convenient maintenance. It is used in power grid transmission lines. be widely used. [0003] However, in DC transmission lines, silicone rubber insulators based on polymers will be exposed to DC electric fiel...

Claims

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Application Information

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IPC IPC(8): H01B3/02H01B3/28H01B17/00H01B19/00
CPCH01B3/02H01B3/025H01B3/28H01B17/00H01B19/00
Inventor 陈运法王好盛薛杨张冬海
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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