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Robust Superhydrophobic Mats based on Electrospun Crystalline Nanofibers Combined with a Silane Precursor

Authors
Park, Soong HeeLee, Song MinLim, Ho SunHan, Joong TarkLee, Dong RyeolShin, Hwa SungJeong, YoungjinKim, JooyongCho, Jeong Ho
Issue Date
Mar-2010
Publisher
American Chemical Society
Citation
ACS APPLIED MATERIALS & INTERFACES, v.2, no.3, pp 658 - 662
Pages
5
Journal Title
ACS APPLIED MATERIALS & INTERFACES
Volume
2
Number
3
Start Page
658
End Page
662
URI
https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/147943
DOI
10.1021/am100005x
ISSN
1944-8244
1944-8252
Abstract
We demonstrate the fabrication of solvent-resistant, mechanically robust, superhydrophobic nanofibrous Mats by electrospinning of poly(vinylidene fluoride) (PVDF) in the presence of inorganic silane materials. The solvent resistance and mechanical strength of nanofibrous mats were dramatically increased through the crystallization of as-spun PVDF fibers or incorporation of a tetraethyl orthosilicate (TEOS) Sol into the nanofibrous matrix. The electrospun nanofibrous mats yielded a water contact angle of 156 degrees that did not vary with TEOS content. The solvent resistance and mechanical robustness of the electrospun mats were significantly enhanced through extensive cross-linking of TEOS, even after short PVDF annealing Limes. The interpenetrating polymer network, which embeds polymer chains in a TEOS network, allows the fabrication of robust functional nanofibers; by combining semicrystalline polymers with electrospinning techniques.
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