Eur. Phys. J. Appl. Phys.
Volume 26, Number 3, June 2004
14th International Colloquium on Plasma Processes (CIP 2003)
|Page(s)||209 - 214|
|Section||Plasma, Discharges and Processes|
|Published online||11 May 2004|
Polyethylene ultrahydrophobic surface: synthesis and original properties
Laboratoire Polymères, Colloïdes et Interfaces, UMR 6120,
Université du Maine,
avenue Olivier Messiaen, 72085 Le Mans, France
2 Laboratoire des Matériaux Polymères et des Biomatériaux, UMR CNRS 5627, Ingénierie des Matériaux Polymères, Université Claude Bernard – Lyon, ISTIL, 43 Bd. du 11 Nov. 1918, 69622 Villeurbanne Cedex, France
Corresponding author: Fabienne.email@example.com
Revised: 12 January 2004
Accepted: 12 March 2004
Published online: 11 May 2004
The synthesis of low density polyethylene (LDPE) ultrahydrophobic surfaces with controlled roughness and transparency was described in a two steps O2 and CF4 plasmas treatment. Water contact angle as high as 171°, contact angle hysteresis less than 4°, and sliding angle as 4° were obtained on those surfaces. The surfaces with small roughness reached 85% of transparency between 400 nm and 800 nm of wavelength. Besides the dynamic dewetting experiments showed a particular behavior. While they were wet with water, the surfaces loosed their ultrahydrophobic properties. An explanation of this behavior was given according to both Wenzel and Cassie Baxter wetting states.
PACS: 52.77.-j – Plasma applications / 52.77.Bn – Etching and cleaning / 61.30.Hn – Surface phenomena: alignment, anchoring, anchoring transitions, surface-induced layering, surface-induced ordering, wetting, prewetting transitions, and wetting transitions / 61.41.+e – Polymers, elastomers, and plastics
© EDP Sciences, 2004
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