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Fire-resistant silicon rubber self-adhesive tape and preparation method thereof

A technology of silicone rubber and self-adhesive tape, applied in the direction of conductors, insulators, electrical components, etc., can solve the problems of poor fire resistance and no adhesion, and achieve excellent electrical insulation performance, strong adhesion, and high hardness.

Active Publication Date: 2014-03-05
WUXI JIANGNAN CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a fire-resistant silicone rubber self-adhesive tape and its preparation method to solve the technical problems that the existing silicon rubber self-adhesive tape is powdery after burning, has no adhesion, and has poor fire-resistant and fire-proof effects.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The components and parts by weight of the refractory silicone rubber self-adhesive tape of the present invention are as follows:

[0045] 100 parts of methyl vinyl silicone rubber with a vinyl content of 0.15 mol%

[0046] 25 parts of fumed superfine white carbon black

[0047] Ultrafine alumina 12 parts

[0048] Low molecular hydroxy silicone oil 2 parts

[0049] 2.2 parts of ferric oxide

[0050] Vinyltrimethoxysilane 0.6 parts

[0051] Dicumyl peroxide 1.2 parts

[0052] 0.8 parts of polytetrafluoroethylene superfine powder

[0053] Borate 1.2 parts

[0054] 1.2 parts of hydrogenated rosin.

[0055] The preparation method of refractory silicone rubber self-adhesive tape of the present invention is as follows:

[0056] 1) Add vinyltrimethoxysilane to the gas-phase ultrafine silica, ultrafine alumina, and ferric oxide respectively, stir in a kneader for 10 minutes, and set aside;

[0057] 2) Mix the methyl vinyl silicone rubber raw rubber with a vinyl content ...

Embodiment 2

[0065] The components and parts by weight of the refractory silicone rubber self-adhesive tape of the present invention are as follows:

[0066] 100 parts of methyl vinyl silicone rubber with a vinyl content of 0.05 mol%

[0067] Precipitated white carbon black 30 parts

[0068] Electrical filler aluminum oxide 15 parts

[0069] 3 parts methylphenyldiethoxysilane

[0070] Manganese dioxide 1.5 parts

[0071] Vinyltriethoxysilane 0.15 parts

[0072] 1 part benzoyl peroxide

[0073] 0.6 parts of polytetrafluoroethylene superfine powder

[0074] Borate 1.6 parts

[0075] Rosin glyceride 1.6 parts.

[0076] The preparation method of refractory silicone rubber self-adhesive tape of the present invention is as follows:

[0077] 1) Add methylphenyldiethoxysilane to precipitated white carbon black, electrical filler alumina, and manganese dioxide respectively, stir in a kneader for 10 minutes, and set aside;

[0078] 2) Mix the methyl vinyl silicone rubber raw rubber with a v...

Embodiment 3

[0086] The components and parts by weight of the refractory silicone rubber self-adhesive tape of the present invention are as follows:

[0087] Methyl vinyl silicone rubber with a vinyl content of 0.3 mol% 100 parts

[0088] Fumed white carbon black 40 parts

[0089] 20 parts of aluminum oxide for electronic ceramics

[0090] Tetramethylethylenedioxydimethylsilane 4 parts

[0091] Chromium trioxide 3 parts

[0092] γ-Mercaptopropyltrimethoxysilane 1 part

[0093] Di-tert-butyl peroxide 2 parts

[0094] 1 part PTFE superfine powder

[0095] 2 parts borate

[0096] 2 parts hydrogenated rosin.

[0097] The preparation method of refractory silicone rubber self-adhesive tape of the present invention is as follows:

[0098] 1) Add γ-mercaptopropyltrimethoxysilane to fumed white carbon black, alumina for electronic ceramics, and chromium trioxide respectively, stir in a kneader for 10 minutes, and set aside;

[0099] 2) Mix the methyl vinyl silicone rubber raw rubber with a...

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Abstract

The invention discloses a fire-resistant silicon rubber self-adhesive tape and a preparation method thereof, belonging to the field of high-polymer materials. The fire-resistant silicon rubber self-adhesive tape mainly comprises the following components and materials in parts by weight: 100 parts of methyl vinyl silicone rubber, 15-40 parts of white carbon black, 5-20 parts of alumina, 1-4 parts of constitution controller, 1.5-3 parts of sintering additive, 0.15-1 part of surface treating agent, 0.5-2 parts of cross-linking agent, 0.5-1 part of superfine polytetrafluoroethylene powder, 0.5-2 parts of boric acid ester, and 0,5-2 parts of tackifying resin. In the fire-resistant silicon rubber self-adhesive tape, a ceramic protection layer is formed on the silicon rubber through the co-sintering of the white carbon black, alumina and sintering additive, the ceramic body is stable in structure, strong in adhesive force, high in hardness, difficult to fall, and good in compactness, difficult for formation of a channel so as to play a role in isolating flame, and capable of being widely applied to repair and connection of processed wires and cables, as well as convenient to use and excellent in insulating property.

Description

technical field [0001] The invention relates to a fire-resistant silicone rubber self-adhesive tape and a preparation method thereof, belonging to the field of polymer materials. Background technique [0002] With the frequent occurrence of fire accidents, people's awareness of the fire hazards of wires and cables continues to deepen, and the requirements for fire-resistant and flame-retardant properties of wires and cables are also getting higher and higher. Because the cable fire has the characteristics of rapid spread, difficulty in fighting, secondary hazards, and long recovery time, it will bring huge losses to the national economy and the lives and properties of the people. Therefore, cable fire protection measures are an important means to reduce the fire and delay of cables. The key is to focus on prevention. According to this idea, various fire-resistant cables and fire-resistant cables are widely used. [0003] During the manufacture, storage, transportation, and ...

Claims

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Application Information

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IPC IPC(8): C08L83/07C08K13/06C08K9/06C08K3/36C08K3/22B29C43/58B29B7/72H01B17/60H01B7/295
Inventor 陈晓军夏亚芳刘军韩俊杰吴丽芳
Owner WUXI JIANGNAN CABLE
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