zhou-durablesuperoleophobic-2018.pdf (1.46 MB)
Durable superoleophobic-superhydrophilic fabrics with high anti-oil-fouling property
journal contribution
posted on 2018-01-01, 00:00 authored by Hua Zhou, Hong Wang, W Yang, Haitao Niu, Xin Wei, S Fu, S Liu, Hao Shao, Tong LinAlthough a number of methods have been reported for the preparation of superoleophobic-superhydrophobic surfaces, a challenge still remains in preparing a surface showing simultaneous superoleophobicity and superhydrophilicity. Herein, we demonstrate a novel strategy for preparing a simultaneously superhydrophilic-superoleophobic surface on cotton fabrics. A wet chemical coating method was employed to apply an oligomer which consists of a fluorinated alkyl and a PEG-phosphate hydrophilic moiety, silica nanoparticles and fluoroalkyl silane, onto fabric substrates. The treated fabrics exhibited both superoleophobicity and superhydrophilicity with a contact angle over 150° for oil fluids (surface tension > 27 mN m-1) but 0° for water. Water can spread into the fabric matrix within 2 seconds. The superhydrophilic-superoleophobic fabric had excellent superoleophobicity no matter whether it was at the dry state in air, pre-wetted with water, or in underwater conditions. When being contaminated forcedly with oil or oil-free dirt, the fabric can be easily cleaned up with water without using any detergent and chemical agent. Superoleophobic-superhydrophilic surfaces may provide an alternative and feasible way for anti-fouling applications.
History
Journal
RSC advancesVolume
8Issue
47Pagination
26939 - 26947Publisher
Royal Society of ChemistryLocation
Cambridge, Eng.Publisher DOI
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eISSN
2046-2069Language
engPublication classification
C1 Refereed article in a scholarly journalCopyright notice
2018, Royal Society of ChemistryUsage metrics
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