Journal
APPLIED SURFACE SCIENCE
Volume 387, Issue -, Pages 163-174Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2016.06.094
Keywords
Superhydrophobic surface; Cotton; Silsesquioxanes; Sol-gel; Fluorosilsesquioxane
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Funding
- SILANTEX Project [180 480]
- National Centre for Research and Development (Poland)
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The surface modification of cotton fabrics was carried out using two types of bifunctional fluorinated silsesquioxanes with different ratios of functional groups. The modification was performed either by one- or two-step process. Two methods, the sol-gel and the dip coating method were used in different configurations. The heat treatment and the washing process were applied after modification. The wettability of cotton fabric was evaluated by measuring water contact angles (WCA). Changes in the surface morphology were examined by scanning electron microscopy (SEM, SEM-LFD) and atomic force microscopy (AFM). Moreover, the modified fabrics were subjected to analysis of elemental composition of the applied coatings using SEM-EDS techniques. Highly hydrophobic textiles were obtained in all cases studied and one of the modifications resulted in imparting superhydrophobic properties. Most of impregnated textiles remained hydrophobic even after multiple washing process which shows that the studied modification is durable. (C) 2016 Elsevier B.V. All rights reserved.
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