Fabrication of superhydrophobic and highly oleophobic electrochromic composite surfaces


Yildirim M. , Demir G. E. , Caglar A., CENGİZ U. , KAYA İ.

PROGRESS IN ORGANIC COATINGS, cilt.97, ss.254-260, 2016 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 97
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1016/j.porgcoat.2016.04.043
  • Dergi Adı: PROGRESS IN ORGANIC COATINGS
  • Sayfa Sayıları: ss.254-260

Özet

Mechanically stable, superhydrophobic and highly oleophobic polymeric electrochromic (EC) composite surfaces were prepared. Firstly, an acrylate-based terpolymer with perfluoroalkyl side chains was synthesized as surface tension reducing component of the composite surfaces. Before the use, pre-synthesized terpolymer was gelled to gain higher mechanical stability. Obtained conducting gel was added into the electropolymerization media including 3,4-ethylenedioxythiophene (EDOT) or pyrrole (Py) monomers dissolved in an electrolyte solution. Electrodeposition time was varied to optimize the surface wettability characteristics. Water contact angles (WCA) and salad oil contact angles (OCA) were determined by Attension Theta Optical Tensiometer. WCA and OCA of flat surfaces were quite lower than those of the EC composite surfaces with high surface roughness caused by poly (3,4-ethylenedioxythiophene) (PEDOT) component. PEDOT and PPy components have provided not only EC properties but also surface roughness that particularly increases WCA and OCA. (C) 2016 Elsevier B.V. All rights reserved.