| abstract |
The invention relates to a sealant base glue, a sealant and a preparation method of the sealant. The sealant base is mainly prepared from the following raw materials by weight: 100 parts of vinyl silicone oil, 20-120 parts of white carbon black, 4-24 parts of treatment agent, 1-20 parts of anti-aging agent, and 2-12 parts of water ; Vinyl silicone oil is mainly prepared from the following raw materials by weight: 1000 parts of octamethylcyclotetrasiloxane, 10-20 parts of methyltrimethoxysilane, 15-30 parts of tetramethyldivinylsiloxane part, and 0.05-0.5 part of catalyst A. The present invention adopts vinyl silicone oil prepared by a specific raw material formula, an appropriate amount of treatment agent and an anti-aging agent, together with white carbon black and water, to form a specific raw material formula of sealant base glue. When the sealant is prepared, the raw material formulation of the sealant base is used together with polyvinyl polysiloxane, vinyl silane coupling agent and hindered phenol antioxidant, so that the obtained sealant has both mechanical strength and compression set properties. . |