Transparent glass fiber reinforced composites films ware fabricated by UV light induced chemical crosslinking of composite materials consisting of glass fiber and UV curable resin in film state. In order to apply film to flexible device, excellent flexural property is required, then the delamination should not occurred between glass fiber and UV curable resin when film is bent. To minimize delamination and improve the interfacial adhesion at interface between glass fiber and UV curable resin, the γ-aminopropyl triethoxy silane and γ-glycid oxypropyl trimethoxy silane were applied for the surface treatment of glass fibers. Silanization of glass fiber surface was checked by scanning electron microscopy and the degree of delamination of composite film was confirmed through the bending test, ASTEM290-96a, used by haze meter.

This study attempted to develop a copper-PTFE composite consisting of copper nano-particles homogeneously distributed into PTFE using scCO 2 . The overall synthesis process consisted of impregnation of copper precursor and thermolytic reduction. The impregnation process was performed over a range of temperature from 40 to 160 o C and pressure from 120 to 200 bar. The reduction process was performed at 230 o C and 250 bar for 2 hours consecutively after impregnation. The changes in appearance, mass, and morphology of the PTFE composite were examined by precision balance, SEM, TEM, and EDS. The impregnation ratio increased with temperature up to 120 o C, but decreased above 120 o C. The impregnation ratio increased with the pressure. These results could be explained by dehydration reaction of Cu(hfa) 2 H 2 O and thermodynamical affinity difference of copper precursors for PTFE or scCO 2 . Copper nano-particles impregnated into the PTFE were identified from SEM, TEM and EDS analysis.