The Effect of Molecular Thin Film on Adhesion, Hydrophobic and Transmission Properties of Optical Lens

• Main Authors: Chun-Hao Chen, 陳俊豪
• Other Authors: Jeng-Haur Horng
• Format: Others
• Language: zh-TW
• Published: 2007
• Online Access: http://ndltd.ncl.edu.tw/handle/mhree4

碩士 === 國立虎尾科技大學 === 機械與機電工程研究所 === 95 === In visual times, all informations have to spread through the display elements.The reliability and beauty requirement of the display elements made from company become important in their service life. Due to the rapid progress in the development of photoelectric system and parts, it has become increasingly important to study the mechanical phenomena (adhesion, friction and wear) of coating film in order to match these requirements. Although coating film can resist wearing of microparts, particles and water will increase the speed of wearing and transmission decay in atmosphere. It is necessarily to use molecular thin film on coating film, in order to enhance the surface properties of photoelectric parts. Recently, self-assembled monolayers (SAMs) coating by Liu[1] and Tambe[2] have been demonstrated to achieve anti-stiction and low friction characteristics when properly integrated into microstructure release process. The study work is to establish analysis and manufacture technology of SAMs in optical parts. For this purpose, several kinds of SAMs, including alkyl and biphenyl spacer chains with different surface terminal groups (-SH,-SiCl3,-Si(OCH3)3), and different head groups (-SH,SiCl3), were prepared. The influence of spacer chains, surface terminal groups, and head groups on adhesion, surface energy, water hydrophobic, friction, and transmission were investigated by AFM, contact angle Analyzer and Thin-film Analyzer. Coating film characteristics could be simulate by the new adhesion contact model. Moreover, the optimal SAMs were choiced to apply to coating surface of industrial optical products. In this study, it is found that ODS and HDT exhibits the smallest adhesive force and friction force, because of low work of adhesion of -CH3 surface terminal group, and high-compliance long carbon chain. surface has lowest surface energy, and adhesion properties.