Formation of plasticized polyvinyl butyral-zirconia hybrid films and their application to laminated glass

摘要

Poly(vinyl butyral)(PVB) is widely used as the film sandwiched in the laminated glass owing to its merits, such as sturdiness, flexibility and great adhesiveness with glass as well as the high impact strength at low temperature. However, compared with these properties, heat-resistance of PVB is not so outstanding, which could be the main reason leading to PVB mechanical weakness in higher temperature range. Plasticized PVB is widely used for commercial laminated glass. Addition of plasticizer also generates decrease of glass transition temperature of pure PVB. While, zirconium dioxide (ZrO2) is a kind of inorganic material which has high heat-resistance and strength, thus our research aims to improve thermal/mechanical properties of the plasticized PVB by adding ZrO2 nanoparticles through sol-gel method and produce high-performance laminated glass experimentally using the improved PVB as an interlayer film.