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- Title
Fabrication of superhydrophobic fabric coating using microphase-separated dodecafluoroheptyl-containing polyacrylate and nanosilica.
- Authors
An, Qiufeng; Xu, Wei; Hao, Lifen; Fu, Yongshan; Huang, Liangxian
- Abstract
Superhydrophobic coating was developed on cotton fabric in this article using a dodecafluoroheptyl-containing polyacrylate (DFPA) and nanosilica. Film morphology of DFPA on cotton fibers/fabrics and chemical compositions of the treated cotton fabric were investigated using scanning electron microscopy (SEM), atomic force microscopy (AFM), and X-ray photoelectron spectroscopy (XPS), respectively. DFPA could form a relatively even film on the cotton fabric/fiber under SEM observation; however, it presented a rough and microphase-separated pattern under AFM observation. There were many mountain-like protuberances. The height of the protuberances and the root mean square roughness ( Rms) of the film reached about 20-50 nm and 12.511 nm in 2 × 2-μm2 scanning field (as the scale data was 100 nm). XPS analysis indicated that the perfluoroalkyl groups had the tendency to enrich at the film-air interface. DFPA could make the treated cotton fabric with a water contact angle (WCA) at about 138.5°. Cotton fabric was previously roughened using a 1 wt % silica sol with an average particle size of 20-30 nm and then finished by DFPA; hydrophobicity of the resultant cotton fabric was strongly improved, and WCA could reach 153.6°. The color of this superhydrophobic fabric would not be influenced, but its softness decreased compared to untreated fabric. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
- Subjects
SOLID freeform fabrication; FABRIC coating mills; POLYACRYLATES; HYDROPHOBIC compounds; NANOSILICON; SCANNING electron microscopy; X-ray photoelectron spectroscopy; ATOMIC force microscopy
- Publication
Journal of Applied Polymer Science, 2013, Vol 128, Issue 5, p3050
- ISSN
0021-8995
- Publication type
Article
- DOI
10.1002/app.38503