Journal
TEXTILE RESEARCH JOURNAL
Volume 87, Issue 5, Pages 552-560Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/0040517516632477
Keywords
superhydrophobicity; silica nanoparticles; spray-coating; hysteresis; smart textiles
Categories
Funding
- Agency for Defense Development (ADD)
- Defense Acquisition Program Administration (DAPA)
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Superhydrophobic and transparent surfaces on cotton fabrics have been developed using silica nanomaterials. Initially, trichlorododecylsilane was treated on the silica nanoparticles to lower the surface energy of the fabric. By simply spraying alcohol suspensions containing hydrophobized silica nanoparticles, extremely water repellent coatings were formed on the textile fabrics. The effect of three types of alcohol solvent on the hydrophobicity of the coated cotton fabrics was examined by measuring the surface wettability. The treated cotton textiles in methanol exhibited contact angles higher than 160 degrees, contact angle hysteresis lower than 10 degrees, and good water repellency. It proved to be essential to form hierarchical morphology in achieving superhydrophobicity.
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