The Porosity and Wettability Properties of Hydrogen Ion Treated Polytetrafluoroethylene
نویسندگان
چکیده
The porosity and wettability properties of hydrogen ion treated polytetrafluoroethylene (PTFE) materials are related using contact angle, scanning electron microscopy (SEM), and ellipsometry tests. PTFE are irradiated using a low energy hydrogen ion shower (LEHIS) produced by a Gas Discharge Ion Source (GDIS). The plasma discharge current (Id) is varied at intervals of 1 mA. Results show that treatment using lower Id enhances the hydrophobic property of the PTFE material with contact angle value of as high as 118.6. It also becomes less porous as indicated by the increase in the index of refraction, decrease in optical transmittance, and increased scissions and striations in the SEM images. Opposite effects are observed for higher Id. PACS CODES: 81.65.-b, 68.35.bm, 61.80.-x, 68.08.Bc, 07.60.Fs
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