マイクログラビア印刷を用いた高分子超薄膜の大量創製

抄録

In this study, we examined the fabrication of polymer ultra-thin films(nanosheets) using a micro gravure printing method. Conveying speed of the plastic film substrate, the concentration of solution, rotating speed of the micro gravure roll ware investigated experimentally for effects on the film thickness of the nanosheets. The PET film (thickness 100[μm], width 100[mm]) as substrate was placed along rollers. After that, the tension load was applied to film. And then, Polyvinyl alcohol (PVA) was coated on the PET film in order to release the nanosheets from the PET film by sacrificial layer method. After that, Poly lactic acid (PLLA) was coated. Thickness of nanosheets was measured using a stylus type surface profile. Experiments showed that the film thickness was decreased with increase in transportation speed of film. Furthermore, we evaluated the Young's modulus of the nanosheets were fabricated, also investigated in detail the physical properties such as flexibility and surface roughness, it was possible to obtain new knowledge about the creation process nanosheets using the micro gravure printing method.