NEW SURFACE IMPROVEMENT TECHNIQUES FOR ENGINEERING PLASTICS

Sputter etching process and reactive sputter etching process in radio frequency(RF)glow discharge for surface improvement technique of engin eering plastics, especially PTFE (polytetrafluoroethylene) were studie d. Tn the case of sputter etching in Ar gas, characteristic cone like structures were developed on the PTFE surface,resulting in improvement of adhesive property. In reactive sputter etching in H2O gas, the PTF E surface changed chemically and showed wettability.