A new nanoparticle-reinforced silicone rubber composite integrating high strength and strong adhesion

A bulk modification method is developed in this paper to achieve a new nanoparticle-reinforced silicone rubber composite with high strength and strong adhesion. Different from existing modification methods, an adhesion promoter is added in order to improve the adhesive property in addition to the surface modified silica nanoparticle. Furthermore, the adhesion promoter also exhibits an excellent compatibility with the silicone rubber. The tensile strength and shear adhesive strength of the new composite can reach up to 10.4 MPa and 90 kPa, respectively, both of which are much higher than their counterparts in the popular silicone rubber product Sylgard184. Moreover, the strong adhesion performance of the composite exhibits a good stability in either several-hour use or many attachment/detachment cycles. The present composite shows apparent advantages over existing silicone rubber products in not only the direct use as an adhesive material, but also potential applications for manufacturing advanced adhesive devices such as wearable electronics.