Surface Treatment of Polytctrafluoroethenc by Air Plasma

Abstract

Abstract: The surface of polytetrafluoroethene (PTFE) was treated by air plasma in the equipment designed by ourselves, as a result, the surface wettability increases. The methods of contact angle measurement, XPS, and ESRwere used to diagnose the surface which was exposed to the plasma at different time and different power input. The contact angle of water on the treated PTFEdrops down to about 60° comparing with 108° of the untreated PTFE. The treating effect at 180 Wor 50 Wis more efficient than at 100 W. The improvement of wettability is found to be related with the peroxide radicals formed on-the surface of PTFE.

Key words: Plasma, Polytetrafluoroethenc, Wettability

TrendMD:

Ma Yuguang, Yang Meilin, Lin Dehou, Shen Jiacong, Liu Xiaoxun. Surface Treatment of Polytctrafluoroethenc by Air Plasma[J]. Chem. J. Chinese Universities, 1990, 11(11): 1307.

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Surface Treatment of Polytctrafluoroethenc by Air Plasma

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