earticle

영어

Dammar plant resin (dipterocaupecea sp.) was mixed with silicone in various wt% and these two components were modified by using a volatile organic solvent to form Silicone-dammar (SD) coating material. A thin SD coating film layered on aluminium Q-panel was obtained by using spin coating method and cured at room temperature, labeled as SD0, SD5, SD10, SD15, SD20, SD25, SD30, SD35, SD40 and SD45 according to weight % of dammar. A nano-indentation test was carried out to investigate the mechanical performance of the coating film in nanoscale measurement. From the creep indentation profile, the elastic behavior of the coating material was evaluated and result shows that SD5, SD35 and SD40 have high modulus of elasticity. By using Berkovich nano-indentation with Vickers Hardness formula, SD 10 was found to be the hardest coating with hardness of 28.533 Pa and highest reduced modulus (Er) of 4.89E+02 MPa.