Preparation and Characterization of Environment Friendly Various Pattern Film via UV Imprint Lithography Process

During the imprint lithography process (ILP), ILP technology using ultraviolet (UV) light is the method of pressing UV curing resins at a constant pressure (low pressure) with mold fabricated using pattern master, then UV irradiation, hardening resins, and then pulling away and transcription. This method is simpler and more efficient than the thermal ILP technology, which requires high temperature and high pressure. Thus, in this study, the UV-ILP for various pattern formulation was conducted, and the UV curing resin developed was used with environment-friendly acrylic resin. The resin does not contain fluorine, making it difficult to develop hydrophobic properties. Thus, by different mold surface patterns through the imprint process, acrylic resin also showed the super-hydrophobic surface characteristics. To evaluate the physical characteristics of UV curing resins developed, the surface properties, hardness, contact angle, and thermal characteristics were conducted. In conclusion, water-contact angle of honeycomb pattern film has shown the super-hydrophobic property over than 120 degree compared to the flat type pattern film.