Development of Hybrid Elastic Instant Adhesives Using Reaction-Induced Phase Separation

Abstract

We have developed a hybrid elastic instant adhesive using reaction-induced phase separation. This adhesive consists of a large amount of cyanoacrylate component and a small amount of modified silicone component. The cured adhesive forms domains of fast-curing and hard polycyanoacrylate and a matrix of slow-curing and flexible modified silicone. Due to the high content of cyanoacrylate, it cures quickly, while the modified silicone matrix provides flexibility. This product forms a soft and tough bond, making it resistant to vibration, impact, and thermal shock. Additionally, it is expected to offer improved productivity compared to other adhesives. These features are expected to contribute to faster bonding and improved durability in various fields such as automotive, electronic materials, and others.