Characterization of titania hydrosol and its influence on light fastness of polyester fabric

摘要

A titania hydrosol was prepared by a sol-gel method to enhance the light fastness of PET fabric, in which tetrabutyl titanate (TTB) was used as precursor. The sol and its gel were characterized by photo correlation spectroscopy (PCS), digital camera, FT-IR, and XRD, respectively. The size of nanoparticles in the sol was all not more than 6.0 tun and distributed uniformly. The nano-sol has good transparent property. Alkoxy groups linked with Ti atoms hydrolyze completely. The crystallization of formed titania gel is anatase. Light fastness of dyed polyester fabrics improves significantly.