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Silicon rubber for room-temperature quick-curing potting and preparation method thereof

A fast-curing, silicone rubber technology, applied in chemical instruments and methods, adhesives, other chemical processes, etc., can solve the problem that silicone potting adhesives cannot be cured quickly at room temperature, and achieve excellent chemical stability and fast curing speed Effect

Inactive Publication Date: 2015-11-18
BLUESTAR CHENGDU NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problem that silicone potting glue cannot be cured quickly at room temperature in the prior art, and provides a silicone rubber for fast curing potting at room temperature, which can be cured quickly at room temperature and can achieve the corresponding Comprehensive performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of silicone rubber for rapid curing at room temperature for potting, comprising the following raw materials in parts by weight:

[0023] 71 parts of 107 liquid silicone rubber

[0024] 25 parts of methyl triacetone oximino silane

[0025] Tetraethyl silicate 8 parts

[0026] 4 parts butyltin dilaurate

[0027] Additive KH-5500.3 parts

[0028] 10 parts of fumed white carbon black.

Embodiment 2

[0030] A kind of silicone rubber for rapid curing at room temperature for potting, comprising the following raw materials in parts by weight:

[0031] 80 parts of 107 liquid silicone rubber

[0032] 35 parts of methyl triacetone oximino silane

[0033] Tetraethyl silicate 12 parts

[0034] 6 parts of butyltin dilaurate

[0035] Additive KH-5502 parts

[0036] 15 parts of fumed white carbon black.

Embodiment 3

[0038] A kind of silicone rubber for rapid curing at room temperature for potting, comprising the following raw materials in parts by weight:

[0039] 75.5 parts of 107 liquid silicone rubber

[0040] 30 parts of methyl triacetone oximino silane

[0041] Tetraethyl silicate 10 parts

[0042] 5 parts of butyltin dilaurate

[0043] Additive KH-550 1.1 parts

[0044] 12.5 parts of fumed white carbon black.

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PUM

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Abstract

The invention relates to a silicon rubber for room-temperature quick-curing potting and a preparation method thereof, belonging to the technical field of organosilicon sealants. The silicon rubber comprises 71-80 parts of 107 liquid silicon rubber, 25-35 parts of methyl triacetoxime silane, 8-12 parts of ethyl orthosilicate, 4-6 parts of butyl tin dilaurate, 0.3-2 parts of additive KH-550 and 10-15 parts of fumed silica. The silicon rubber can keep elasticity for a long time within a wide temperature range, and has excellent chemical stability and water resistance. The silicon rubber is especially suitable for application occasions with requirements for deep curing, has higher curing speed at room temperature, and is suitable for potting electronic products.

Description

technical field [0001] The invention relates to a silicone rubber and a preparation method thereof. More specifically, the invention relates to a room-temperature quick-curing silicone rubber for potting and a preparation method thereof, belonging to the technical field of silicone sealants. Background technique [0002] The main copolymerization components of condensation type two-component RTV silicone rubber are base polymer, crosslinking agent, catalyst and so on. When the copolymerized components are mixed together, a condensation reaction can occur at room temperature to become an elastomer. The cured silicone rubber obtained by this process can maintain elasticity for a long time in the range of -65-250°C, and has excellent chemical stability and water resistance. It is especially suitable for applications requiring deep curing, and the curing speed is relatively fast. [0003] The State Intellectual Property Office published an opinion publication number of CN10437...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/06C08K13/02C08K5/5465C08K5/5415C08K5/57C08K3/36C09J183/06C09J11/04C09J11/06C09K3/10
Inventor 毛云忠曹先军王凤德赵奕崔晓静高川刘咏梅
Owner BLUESTAR CHENGDU NEW MATERIALS
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