Optical properties and UV-curing behaviors of optically clear PSA-TiO2 nano-composites

Optically clear PSAs-TiO2 nano-composites were investigated for the purpose of display. TiO2 nano-particles can be directly incorporated into the polymer matrix to form high refractive index PSAs-nanocomposites films. Moreover, this study also employed semi-interpenetrated structured polymer network through the process of UV-curing with high refractive trifunctional acrylic monomer. The optical properties of PSAs-TiO2 nano-composites were examined by using UV-visible spectroscopy and a prism coupler. Viscoelastic properties were obtained by ARES and adhesion performance was measured by the peel strength, probe tack and shear adhesion failure temperature. Furthermore, curing behaviors of the PSAs-TiO2 nano-composites were investigated by using FTIR-ATR and gel content.