%0 Journal Article
%T Surface modification of polytetrafluoroethylene film using single liquid electrode atmospheric- pressure glow discharge<br>
%J 中国物理 B
%D 2011
%I 
%X Polytetrafluoroethylene films are treated by room temperature helium atmospheric pressure plasma plumes, which are generated with a home-made single liquid electrode plasma device. After plasma treatment, the water contact angle of polytetrafluoroethylene film drops from 114° to 46° and the surface free energy increases from 22.0 mJ/m2 to 59.1 mJ/m2. The optical emission spectrum indicates that there are reactive species such as O2+, O and He in the plasma plume. After plasma treatment, a highly crosslinking structure is formed on the film surface and the oxygen element is incorporated into the film surface in the forms of -C-O-C-, -C=O, and -O-C=O groups. Over a period of 10 days, the contact angle of the treated film is recovered by only about 10°, which indicates that the plasma surface modification is stable with time.
%K single liquid electrode
%K atmospheric pressure glow discharge
%K wettability
%K ageing effect<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=3C89E4D08EC9A624C9DD2498630FBAEF&yid=9377ED8094509821&vid=A04140E723CB732E&iid=B31275AF3241DB2D&sid=44DA3F914844146E&journal_id=1009-1963&journal_name=中国物理&referenced_num=0&reference_num=46