FIZIKA A 13 (2004) 3 , 105-112

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SURFACE TREATMENT OF POLYMER MATERIAL USING ARGON GLOW DISCHARGE

M. A. HASSOUBAa, M. A. A. SAADb and F. F. ELAKSHARc
aPhysics Department, Faculty of Science, Benha University, Egypt
bTextile Engineering Department, National Research Center, Egypt
c Physics Department, Faculty of Science, Azhar University, Egypt
E-mail address: hassouba@yahoo.com

Received 15 January 2004;     revised manuscript received 2 September 2004
Accepted 13 September 2004  Online 2 February 2005

Surface treatment of polymer material (thin polyester samples) was performed in the DC glow discharge, using Ar gas. The effect of the experimental parameters of the glow discharge (the gas pressure and the sample treatment time) on the wettability of the samples was studied. The wettability was characterized by the water repellency (water spray test). In the present work, it was shown that at a constant gas pressure (270 or 670 Pa), the wettability of the polyester sample was decreased by increasing the exposure time of the sample in the glow discharge. At constant exposure times (2, 5, 10 or 15 min) the wettability of the polyester sample was increased by increasing the gas pressure. This is due to the formation of hydrophilic groups, which increased by increasing the density of electrons and/or metastables.

PACS numbers: 61.41.+e, 81.65.-b
UDC 531.747.5, 538.971

Keywords: DC glow discharge, surfaces treatment, wettability

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