Surface modification of polytetrafluoroethylene by microwave plasma downstream treatment
作者： J.P. Badey , E. Urbaczewski-Espuche , Y. Jugnet , D. Sage , Tran Minh Duc
DOI: 10.1016/0032-3861(94)90365-4
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摘要: Abstract The surface modification of polytetrafluoroethylene (PTFE) by microwave plasma treatment was investigated means contact angle measurement and e.s.c.a. studies. Various gases (e.g. O 2 , N NH 3 ) were used. influence the various parameters, such as power, gas flow, distance between sample centre discharge, time, etc., has been evaluated. No induced treatment, whatever conditions. irradiation, however, rendered PTFE surfaces more hydrophilic, leading to an increase polar component energy from 4.5 ∼ 57 mJ m −2 under optimized led defluorination, crosslinking, hydrocarbon (CC,CH) bond formation, incorporation nitrogen-containing groups, confirmed Oxygen also detected at treated PTFE. Correlations angle, defluorination rate, nitrogen oxygen contents, have established. Optimization operational best wettability samples, is reported.
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