Characteristics of Dammar Based Paint System with the Addition of Silver Nanoclay

摘要

Five different paint systems are formulated using mixture of dammar, silver and nanoclay in various compositions. The paint mixture is spin coated onto Aluminium Q-panel (substrate) and then is left to dry at room temperature. This paper describes the characteristics of the dammar based paint system. Adhesion property is evaluated by using the crosshatch method based on ASTM D3359 standards. The wettability property of coating is characterized by using contact angle measurement. The resistances of paint systems are also described against microbial activity by using disc diffusion and agar well diffusion. The result of crosshatch test shows that the coating system containing 50 wt.% of dammar (PD) exhibits an excellent adhesion property. The addition of dammar to polyol helps to increase the contact angle measurement up to 45.8 degree. The largest inhibition diameter zone against E. coli and S. aureus is obtained for the silver nanoclay polyol dammar, PDS3 paints system.