Surface wettability modification of cyclic olefin polymer by femtosecond laser irradiation

• Main Author: Yong, Chui Shan.
• Other Authors: Lam Yee Cheong
• Format: Final Year Project
• Language: English
• Published: 2012
• Subjects: DRNTU::Engineering::Mechanical engineering
• Online Access: http://hdl.handle.net/10356/50431
• Institution: Nanyang Technological University

This study investigates the controlled modifications of surface wettability of cyclic olefin polymer (COP) by the use of femtosecond laser pulses at various fluences by changing the defocusing distance. A wide range of water contact angles (WCA) were achieved, surfaces ranged from highly hydrophilic...