Highly flexible, transparent cellulose composite films used in UV imprint lithography

• DOI: 10.1007/s10570-013-9877-7
• Publication Date: 2013-02-13T12:37:07Z
• Authors: Shilin Liu; Dandan Tao; Tengfei Yu; Hang Shu; Ren Liu; Xiaoya Liu
• Keywords: 02 engineering and technology; 0210 nano-technology

Highly flexible, optically transparent epoxy resin/cellulose composites were prepared by using the solution impregnation method firstly and then thermal cured. The composite contained 60 wt% resin was still mechanically stable and flexible, and it integrated the merits of cellulose and resin, but the highly hydrophilic behavior of cellulose has been reduced. Contact angle measurements with water demonstrated that the composite films had obvious hydrophobic properties, and a decrease in the water uptake and the permeability towards water vapor gas was also observed. The transmittance of the composite films at 550 nm was about 85–88 %. The thermal and mechanical properties of the composite films were improved. Moreover, the composite films could be used in UV imprint lithography for circuit, and the definition could be compared with that of widely used glass plate.