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Silicone rubber with strong interfacial bonding property

A technology of interface bonding and silicone rubber, which is applied in the field of silicone rubber, can solve problems such as low strength, poor interface adhesion, and high density, and achieve the effects of low production cost, improved bonding performance, and simple preparation process

Inactive Publication Date: 2019-08-16
兴化市戴窑镇永生橡胶制品厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, silicone rubber also limits its development and use due to its own characteristics, such as high density, low strength, poor interface adhesion, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The components of each raw material are as follows: 100 parts of raw silicone rubber; 5 parts of curing agent (methyl hydrogen-containing silicone oil); 5 parts of tackifier (vinyl silane coupling agent); 5 parts of crosslinking agent (trimethylolpropane trimethacrylate) 1 part; catalyst (hexachloroplatinic acid) 0.1 part.

Embodiment 2

[0016] The components of each raw material are as follows: 100 parts of silicone rubber raw material; 7 parts of curing agent (methyl hydrogen-containing silicone oil); 10 parts of tackifier (vinyl silane coupling agent); crosslinking agent (trimethylolpropane trimethacrylate) 1 part; catalyst (hexachloroplatinic acid) 0.3 parts.

Embodiment 3

[0018] The components of each raw material are as follows: 100 parts of raw silicone rubber; 10 parts of curing agent (methyl hydrogen-containing silicone oil); 15 parts of tackifier (vinyl silane coupling agent); crosslinking agent (trimethylolpropane trimethacrylate) 2 parts; catalyst (hexachloroplatinic acid) 0.2 parts.

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PUM

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Abstract

The invention provides a silicone rubber with strong interfacial bonding property, wherein the silicone rubber is mainly prepared from the following materials by weight: 100 parts of a silicone rubberraw rubber, 5-10 parts of a curing agent, 5-20 parts of a tackifier, 1-3 parts of a cross-linking agent, and 0.1-1 part of a catalyst. According to the present invention, by adding an appropriate amount of the polyhydroxy-containing cross-linking agent trimethylolpropane trimethacrylate, the processability of the silicone rubber is improved, and the bonding strength between the silicone rubber and the metal is effectively improved; by adding an appropriate amount of the tackifier silane coupling agent, the bonding performance of the silicone rubber is effectively improved; by selecting the suitable auxiliary agent, the interfacial bonding performance of the silicone rubber is effectively improved; and the preparation process is simple, the production cost is low, and the application rangeis wide.

Description

technical field [0001] The invention relates to the field of silicone rubber, in particular to a silicone rubber with strong interface bonding performance. Background technique [0002] Silicone rubber is widely used as coatings, adhesives and sealing materials because of its electrical insulation, weather resistance, corrosion resistance, etc. Especially in the field of solid rocket motors, the thermal insulation layer of silicone rubber matrix is ​​expected to become the thermal insulation layer of new solid rocket motors. The temperature range of the silicone rubber insulation layer is wide, the glass transition temperature is lower than -50°C, it has excellent ablation resistance, excellent smoke-free performance, very good storage performance, and good resistance to solvent migration. At the same time, it takes into account weather resistance, Hydrophobic, insulating. However, silicone rubber also has its own characteristics that limit its development and use, such as...

Claims

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Application Information

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IPC IPC(8): C08L83/04C08L83/05C08K5/54C08K5/103
CPCC08L83/04C08L2205/025C08K5/54C08K5/103
Inventor 陈天干董往英陈华彬
Owner 兴化市戴窑镇永生橡胶制品厂
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