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Anti-electromagnetic-interference insulating silicone rubber cloth and preparation method thereof

A technology of anti-electromagnetic interference and insulating cloth, which is applied in the direction of coating, etc., can solve the problem that the conductivity cannot be applied, and achieve the effects of superior external insulation performance, excellent insulation and electromagnetic shielding ability, and excellent aging resistance

Active Publication Date: 2019-12-13
BEIJING GUODIAN FUTONG SCI & TECH DEV +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Purpose of the invention: In view of the problem that the existing electromagnetic shielding materials have good electrical conductivity and cannot be applied to power equipment with insulation requirements or auxiliary construction tools operating in a 10KV electromagnetic field environment, the present invention provides a silicone rubber anti-electromagnetic interference Insulating cloth, in addition, also provides a kind of preparation method of this anti-electromagnetic interference insulating cloth

Method used

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  • Anti-electromagnetic-interference insulating silicone rubber cloth and preparation method thereof
  • Anti-electromagnetic-interference insulating silicone rubber cloth and preparation method thereof
  • Anti-electromagnetic-interference insulating silicone rubber cloth and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0034] A silicone rubber anti-electromagnetic interference insulating cloth, the raw material composition is as follows:

[0035] Silicone rubber layer:

[0036] 18 parts of polymethylvinylsiloxane with a viscosity of 2500mps,

[0037] 30 parts of methyl vinyl siloxane with a viscosity of 55000mps,

[0038] 43 parts of polymethylvinylsiloxane with a viscosity of 150000mps;

[0039] 80 parts of alumina powder with a particle size of 1-5 μm modified by octamethylcyclotetrasiloxane,

[0040] 10 parts of fumed silica with a particle size of 5-15 nm modified by octamethylcyclotetrasiloxane,

[0041] 3 parts of polymethyl hydrogen siloxane,

[0042] Polyvinyl polysiloxane 2.5 parts,

[0043] Silane coupling agent KH560 5 parts,

[0044] 0.01 part of Pt catalyst;

[0045] Graphene layer: 8 parts of phenyltriethoxysilane, 230 parts of xylene, 8 parts of silane coupling agent KH560, 20 parts of graphene microflakes.

[0046] The preparation steps are as follows:

[0047] (1) P...

Embodiment 2

[0059] A silicone rubber anti-electromagnetic interference insulating cloth, the raw material composition is as follows:

[0060] Silicone rubber layer:

[0061] 30 parts of polymethylvinylsiloxane with a viscosity of 1000mps,

[0062] 40 parts of methyl vinyl siloxane with a viscosity of 40000mps,

[0063] 50 parts of polymethylvinylsiloxane with a viscosity of 100000mps;

[0064] 120 parts of alumina powder with a particle size of 1-5 μm modified by octamethylcyclotetrasiloxane,

[0065] 25 parts of fumed silica with a particle size of 5-15 nm modified by octamethylcyclotetrasiloxane,

[0066] 5 parts of polymethyl hydrogen siloxane,

[0067] Polyvinyl polysiloxane 5 parts,

[0068] Silane coupling agent KH560 10 parts,

[0069] 0.01 part of Pt catalyst;

[0070] Graphene layer: 15 parts of phenyltriethoxysilane, 250 parts of xylene, 15 parts of silane coupling agent KH560, and 15 parts of graphene microflakes.

[0071] The preparation steps are as follows:

[0072]...

Embodiment 3

[0081] A silicone rubber anti-electromagnetic interference insulating cloth, the raw material composition is as follows:

[0082] Silicone rubber layer:

[0083] Viscosity is 3000mps polymethyl vinyl siloxane 15 parts,

[0084] 20 parts of methyl vinyl siloxane with a viscosity of 60000mps,

[0085] 35 parts of polymethylvinylsiloxane with a viscosity of 200000mps;

[0086] 60 parts of alumina powder with a particle size of 1-5 μm modified by octamethylcyclotetrasiloxane,

[0087] 5 parts of fumed silica with a particle size of 5-15 nm modified by octamethylcyclotetrasiloxane,

[0088] 1 part polymethyl hydrogen siloxane,

[0089] 1 part polyvinylpolysiloxane,

[0090] 1 part of silane coupling agent KH560,

[0091] 0.01 part of Pt catalyst;

[0092] Graphene layer: 1 part of phenyltriethoxysilane, 200 parts of xylene, 5 parts of silane coupling agent KH560, 30 parts of graphene microflakes.

[0093] The preparation steps are as follows:

[0094] (1) Powder drying: In...

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Abstract

The invention discloses anti-electromagnetic-interference insulating silicone rubber cloth and a preparation method thereof. The anti-electromagnetic-interference insulating silicone rubber cloth comprises a silicone rubber layer and a graphene layer attached onto the surface of the silicone rubber layer, wherein chemical cross-linking and interface grafting of the graphene layer and the siliconerubber layer are realizd through a silane coupling agent KH560. The preparation method comprises the following steps: 1) preparing the silicone rubber layer by using a calendering method, wherein thesilicone rubber layer contains the silane coupling agent KH560; 2) preparing graphene layer slurry, wherein the slurry contains the silane coupling agent KH560; and 3) coating the surface of the silicone rubber layer with the graphene layer slurry to form the graphene layer. According to the invention, the graphene layer with electromagnetic shielding capability is compounded with the heat-conducting and insulating silicone rubber layer, so an insulator function is obtained in a vertical direction, a conductor function is obtained in a horizontal direction and at a graphene electromagnetic shielding layer side, and the functions of insulation, electromagnetic shielding and heat conduction are realized at the same time; moreover, the anti-electromagnetic-interference insulating silicone rubber cloth has excellent external insulation performance, and can meet the external insulation requirements of power equipment or the insulation requirements of a 10-KV electromagnetic field environment.

Description

technical field [0001] The invention relates to a silicone rubber anti-electromagnetic interference insulating cloth and a preparation method thereof, belonging to the technical field of insulation and electromagnetic protection in the electric power industry. Background technique [0002] Power grid accidents occur frequently, and there are two general maintenance methods, namely, power-off maintenance and live maintenance. Power-off maintenance causes large economic losses, and live maintenance is extremely dangerous. In order to increase the safety of live work in the power grid, the State Grid Corporation vigorously promotes safe and reliable live work construction methods, and adopts auxiliary construction equipment or live work robots that meet the application requirements, hereinafter collectively referred to as live construction equipment. Due to the different voltage levels of electric fields, power stations, and lines, and the complex electromagnetic environment, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/06C08L83/07C08L83/05C08K9/06C08K3/22C08K7/26
CPCC08J7/06C08J2383/07C08K2003/2227C08L83/04C08L2205/025C08L2205/035C08K9/06C08K3/22C08K7/26
Inventor 郑永立赵悦菊滕济林李帅徐善军王建辉卢路赵春风陈强杜婧夏益青张黎明郭向军任峰么军项添春张昕胡益菲周长新徐科
Owner BEIJING GUODIAN FUTONG SCI & TECH DEV
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