Cotton based nonwovens with unidirectional water-transport through the thickness of fabric were prepared using atmospheric plasma technology. In controlling deposition parameters, a thin layer polymerized Hexamethyldisiloxane was locally deposited onto cotton nonwoven fabric, so that only treated surface hydrophobic, while untreated remained hydrophilic. The water contact angle, morphology and ...

Abstract The mechanical properties of SiO 2 aerogel prepared under atmospheric pressure are poor, so it is difficult to prepare large pieces materials for practical engineering. In this paper, trimethylchlorosilane (TMCS) was used as a surface modifier transform hydrophilic substances with higher activity into hydrophobic groups, improve the network strength aerogel. Super-hydrophobic by sol-ge...

Sophisticated manipulation of surface roughness and solid surface energy are widely used to design super-hydrophobic layers. In this work, we designed highly porous silica layer with contact angle (CA) of 145°, and its robustness was promoted with thermal treatment. Wettability of coated layer is studied with CA measurement for different liquid surface tensions using diluted organi...

We demonstrate the use of copolymer micelle lithography using polystyrene-block-poly(2-vinylpyridine) reverse micelle thin films in their as-coated form to create nanopillars with tunable dimensions and spacing, on different substrates such as silicon, silicon oxide, silicon nitride and quartz. The promise of the approach as a versatile application oriented platform is highlighted by demonstrat...

A simple method for fabricating high-aspect-ratio, hierarchical, and dynamically tunable surface patterns is invented by harnessing localized-ridge instabilities in gold nanofilms coated on elastomer substrates (a); a theoretical model to calculate the critical parameters (e.g., wavelength and amplitude) for designing the new patterns is developed (b); and novel applications of the patterns as ...