Pulsed laser deposition of superhydrophobic thin Teflon films on cellulosic fibers

Pulsed laser deposition (PLD) was utilized to deposit polytetrafluoroethylene (PTFE) thin films on cellulosic cotton substrates at room temperature. The PTFE-coated fibers showed superhydrophobic properties as evidenced by a water contact angle of 151° compared to a 0° contact angle for pristine cel...

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Bibliographic Details
Published in:Thin solid films 2006-10, Vol.515 (2), p.835-837
Main Authors: Daoud, Walid A., Xin, John H., Zhang, Yi He, Mak, C.L.
Format: Article
Language:English
Subjects:
Composition and phase identification
Condensed matter: structure, mechanical and thermal properties
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Hydrophobicity
Laser ablation
Laser deposition
Materials science
Methods of deposition of films and coatings
film growth and epitaxy
Physics
Polytetrafluoroethylene
Pulsed laser deposition
Surfaces and interfaces
thin films and whiskers (structure and nonelectronic properties)
Thin film structure and morphology
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Description
Summary:Pulsed laser deposition (PLD) was utilized to deposit polytetrafluoroethylene (PTFE) thin films on cellulosic cotton substrates at room temperature. The PTFE-coated fibers showed superhydrophobic properties as evidenced by a water contact angle of 151° compared to a 0° contact angle for pristine cellulosic cotton substrates. Scanning electron microscopy micrographs of the deposited films revealed that PTFE grains were uniformly grown on the cotton surface with an average grain size of about 50–70 nm. The elemental and chemical compositions of the deposited films were verified by energy dispersive X-ray analysis and Fourier Transform Infra-Red spectrometry.
ISSN:0040-6090
1879-2731
DOI:10.1016/j.tsf.2005.12.245