Development of Waterborne Preventive Stain Coating Material with Inorganic-Organic Composite

Abstract

In order to design a waterborne preventive stain coating material,the characteristics of organic-inorganic composite using colloidal silica and an acrylic resin emulsion and their application for exterior coating were investigated.The characteristics of the organic-inorganic composite films were evaluated by the contact angels for water.The dispersion state of colloidal silica in their films was observed wuth a scanning electron microscope(SEM) and a transmission electron microscope(TEM).Furthermore,the stain resistance of coating materials was examined by outdoor exposure test.