Water repellent cotton fabrics prepared by PTFE RF sputtering |
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| Authors: | Da-Yeon Wi Il Won Kim Jooyong Kim |
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| Institution: | (1) Department of Chemical and Environmental Engineering, Soongsil University, Seoul, 156-743, Korea;(2) Department of Organic Materials and Fiber Engineering, Soongsil University, Seoul, 156-743, Korea |
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| Abstract: | A poly(tetrafluoroethylene) (PTFE) sputtering technique was employed to introduce water repellency onto the surfaces of commercial
cotton fabrics. Sputtering power, time, and argon pressure were varied as processing parameters, when PTFE coatings were applied
on the fabrics. Total 27 different samples were prepared to compare their water repellent properties, which were investigated
by contact angle measurements. Morphology of the PTFE coatings were probed by scanning electron microscopy (SEM) and atomic
force microscopy (AFM). Also, the extent of the coating was examined by X-ray photoelectron spectroscopy (XPS). Maximum hydrophobicity
was obtained when PTFE coating was extensive enough to cover cotton fabrics almost completely, and the extensive coating was
the roughest among the samples prepared in this study. |
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| Keywords: | Super-hydrophobicity Poly(tetrafluoroethylene) Sputtering Cotton fabric Contact angle |
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