107 glue-based room-temperature end-capped silicone rubber and preparation method thereof
By mixing 107 gum, isobornyl silane and catalyst under a nitrogen atmosphere, and adding other modified components, a room temperature end-sealed silicone rubber with excellent mechanical properties and stability was prepared, which solved the catalytic and storage problems and poor storage stability in the prior art.
Patent Information
- Application Number
- CN202411948377.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-03-28
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing room-temperature end-sealed silicone rubber based on 107 rubber has catalytic and storage difficulties, and due to its room-temperature crosslinking, the storage stability is poor, and it is prone to yellowing of vulcanization due to moisture, which reduces stability and increases viscosity, affects the final performance.
The 107 gum, isobornyl silane and the catalyst were mixed evenly under a nitrogen atmosphere. After stirring at room temperature, dimethyl silicone oil, modified filler, methyl trimethoxysilane, γ-aminopropyl triethoxysilane and organotin catalyst were added, and the room temperature end-sealed silicone rubber was obtained after evacuation and stirring.
It improves the thermal stability and processing performance of room-temperature end-sealing base rubber, optimizes the formula and components, and makes room-temperature end-sealing silicone rubber have excellent mechanical properties and stability, reduces viscosity changes during storage, and promotes aging resistance.