MODIFICATION OF NANO-TiO2 AND ITS APPLICATION IN POLYACRYLATE COATING
纳米TiO2的改性及其在丙烯酸涂料中的应用

A method is designed to modify nano-TiO2 particles, by which nanoparticles are modified by silane coupling agent WD-70 with double bond group and then the silane coupling agent copolymerizes with methyl methacrylate and butyl acrylate to produce a thin polymer shell on the nanoparticles. The modified nanoparticles are applied as pigment to polyacrylate coating. The modification of nano-TiO2 can improve its dispersibility in the coating and thereby reduce water absorption and permeability of the polyacrylate coating.