Superhydrophobic nanofibre membranes : effects of particulate coating on hydrophobicity and surface properties
Fang, Jian, Wang, Hongxia, Wang, Xungai and Lin, Tong 2012, Superhydrophobic nanofibre membranes : effects of particulate coating on hydrophobicity and surface properties, Journal of the textile institute, vol. 103, no. 9, pp. 937-944, doi: 10.1080/00405000.2011.631280.
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Superhydrophobic nanofibre membranes : effects of particulate coating on hydrophobicity and surface properties
Superhydrophobic electrospun polyacrylonitrile nanofibre membranes have been prepared by surface coating of silica nanoparticles and fluorinated alkyl silane. The coated membranes were characterised by scanning electron microscopy, water contact angle, thermogravimetry analysis, Brunauer–Emmett–Teller, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy and atomic force microscopy. It was shown that the loading of nanoparticle on the nanofibre membrane was controlled by the particle concentration in the coating solution, which played a critical role in the formation of superhydrophobic surface. Increased particle loading led to higher surface roughness and WCA. The nanoparticle coating had little influence on the porosity of the nanofibre membranes. However, overloading of the particles would affect the specific surface area of the nanofibre membrane.
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