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Silicone sealant, device sealed with the sealant and application of the sealant

A silicone and sealant technology, applied in adhesives, non-polymer adhesive additives, coatings, etc., can solve problems such as difficult repairs, and achieve the effect of easy disassembly and repairs

Active Publication Date: 2020-10-16
TONSAN ADHESIVES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Use condensed silicone sealant and polyurethane to seal, and use it to bond the sealing surface after curing to achieve sealing performance. However, when the equipment needs to be disassembled and repaired, the sealant needs to be removed from the sealing surface. These substances have excellent adhesion and will be more difficult to repair

Method used

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  • Silicone sealant, device sealed with the sealant and application of the sealant
  • Silicone sealant, device sealed with the sealant and application of the sealant
  • Silicone sealant, device sealed with the sealant and application of the sealant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] Set the kinematic viscosity to 100000mm 2 / s vinyl-terminated polydimethylsiloxane (Runhe Chemical, Vi301) 50 parts, kinematic viscosity 100mm 2 / s vinyl-terminated polydimethylsiloxane (Runhe Chemical, Vi321) 50 parts, 3000ppm chloroplatinic acid isopropanol solution 2 parts, tetramethyltetravinyl cyclotetrasiloxane 5 parts, hydrogen 0.15 parts of hydrogen-containing silicone oil (Runhe Chemical, RH-H512) with a content of 1.2 wt% and 1 part of fumed silica were stirred in a stirring tank for 1 hour, and then the silicone sealant was obtained.

Embodiment 2

[0068] Set the kinematic viscosity to 10000mm 2 / s vinyl-terminated polydimethylsiloxane 100 parts (Runhe Chemical, Vi303), bis(ethynyl)(1,5-dimethyl-1,5-cyclooctadiene) platinum complex 0.01 part, 1 part of diallyl maleate, 30 parts of hydrogen-containing silicone oil (Runhe Chemical, RH-H6) with a hydrogen content of 0.1 wt%, and 600 parts of aluminum oxide were stirred in a stirring tank for 1.5 hours, and the gel was produced to obtain Silicone sealant.

Embodiment 3

[0070] Set the kinematic viscosity to 3000mm 2 / s vinyl-terminated polydimethylsiloxane (Runhe Chemical, Vi333) 100 parts, diethyl phthalate platinum complex 0.1 part, 3-octyl-1-butyn-3-ol 2 parts, 5 parts of hydrogen-containing silicone oil (Runhe Chemical, RH-H503) with a hydrogen content of 0.5 wt%, and 40 parts of calcium carbonate were stirred in a stirring tank for 0.5 hours, and then the silicone sealant was obtained.

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Abstract

An addition-type silicone sealant including a polyorganosiloxane, an inhibitor, a hydrogen-containing silicone oil, and a metal catalyst. The addition-type silicone sealant solidifies when being exposed to the atmospheric environment and does not solidify when not being exposed to the atmospheric environment.

Description

technical field [0001] The invention relates to the field of organic silicon, and more specifically relates to an addition-type silicone sealant. The invention also relates to devices sealed with the addition-type silicone sealant and applications of the addition-type silicone sealant. Background technique [0002] Because many devices need to have a certain waterproof and gas-proof performance, some parts need to be sealed, such as the flange surface seal of the insulating basin of the high-voltage switch. At present, similar sealing surfaces are often sealed with silicone grease, gaskets, condensed silicone sealants, polyurethane and other substances. Sealed with silicone grease, it is easy to disassemble, but since the silicone grease is not solidified, it is easy to separate oil during use, and may flow at high temperature, and then flow out through the gap, affecting the sealing effect and product appearance. The use of gaskets for sealing often requires a large clampi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J183/07C09J183/05C09J11/04
CPCC08G77/12C08G77/20C08L83/04C09D183/04C09J183/04C08K5/56C08L83/00C08K3/36
Inventor 孙应发李海宾肖明苏丹李守平
Owner TONSAN ADHESIVES INC
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