Open AccessFabrication and characterization of superhydrophobic and superlipophilic silica nanofibers mats with excellent heat resistance
Author(s) -
Shuting Gao,
Hidetaka Watanabe,
Koji Nakane,
Kang Zhao
Publication year - 2016
Publication title -
journal of mining and metallurgy. section b, metallurgy/journal of mining and metallurgy. section b, metallurgy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.42
H-Index - 20
eISSN - 2217-7175
pISSN - 1450-5339
DOI - 10.2298/jmmb150302026g
Subject(s) - contact angle , materials science , x ray photoelectron spectroscopy , scanning electron microscope , annealing (glass) , nanofiber , fabrication , composite material , filter paper , heat resistance , chemical engineering , nanotechnology , medicine , alternative medicine , pathology , engineering
A kind of silica nanofibers (SNF) mats with superhydrophobicity and superlipophilicity as well as excellent heat resistance, had been prepared by modifying of 1, 1, 1, 3, 3, 3-hexamethyldisilazane on electrospun SNF mats. The effects of heat treatment time on properties of modified SNF mats were investigated by scanning electron microscopy, nitrogen absorption analysis, X-ray photoelectron spectroscopy, and contact angle measurement. With high specific surface area 240.1 m2/g, the optimal modified SNF mat approached water contact angle (WCA) 153.2° and fuel contact angle (FCA) 0°, furthermore, even after annealing by 450°C in air for 1h , WCA remained at 135.5° and FCA kept at 3.8°, which opened a new way to improve heat resistance of fuel-water filter paper