초록 |
Nanoimprint lithography (NIL) using ultraviolet (UV) rays is a method of pressing UV curing resin with a mold(template) is used to investigate UV, harden resin, and then take it off transfer the pattern. The UV-curable resins are manufactured from solvent-free resins by combining main initiators, co-initiators, mono-functional monomers, di-functional monomers and multi-functional monomers. Pattern molds can be produced through imprint lithography process, which can form various patterns. Among the various patterns, the experiment was conducted with flat and network patterns. After imprint of flat pattern to PET film with manufactured UV-curable resin, contact angle was also observed to be less than about 80 degrees. However, after the network pattern with the same UV-curable resin was imprinted to the PET film, the contact angle was observed to be more than 100 degrees, indicating that the hydrophobicity of the surface was improved. |