Imparting super hydro/oleophobic properties to cotton fabric by means of molecular and nanoparticles vapor deposition methods

Payam Aminayi, Noureddine Abidi

Research output: Contribution to journalArticlepeer-review

25 Scopus citations

Abstract

Super hydro/oleophobic cotton fabrics were prepared using nanoparticle vapor deposition and molecu-lar vapor deposition techniques. The surface was roughened by trimethylaluminum/water nanoparticlesfollowed by functionalization with (tridecafluoro-1,1,2,2-tetrahydrooctyl)trichlorosilane. This processimparted unique hydro/oleophobic properties (contact angle >160°). In contrast to wet chemistry pro-cesses, the chemicals used and the thickness of the coatings produced by this method could be controlledprecisely, which allowed for the minimization of waste generation while preserving the original prop-erties of the fabric. Dynamic contact angles were measured and the fabrics that were coated using thistechnique showed low-contact-angle hysteresis properties. Scanning electron microscopy and univer-sal attenuated total reflectance Fourier transform infrared spectroscopy confirmed the formation ofa nanostructure-roughened surface. Drop dynamics such as the force of droplet movement, work ofadhesion, and surface free energy were also calculated.

Original languageEnglish
Pages (from-to)223-231
Number of pages9
JournalApplied Surface Science
Volume287
DOIs
StatePublished - 2013

Keywords

  • Contact angle
  • Fluorosilane
  • Molecular vapor deposition
  • Superhydrophobic
  • Superoleophobic

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