Facile preparation of superhydrophobic polyester surfaces with fluoropolymer/SiO2 nanocomposites based on vinyl nanosilica hydrosols |
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| Authors: | Lihui Xu Zaisheng Cai Yong Shen Liming Wang Ying Ding |
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| Affiliation: | 1. College of Fashion, Shanghai University of Engineering Science, Shanghai, China;2. College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, China |
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| Abstract: | A facile method to prepare superhydrophobic fluoropolymer/SiO2 nanocomposites coating on polyester (PET) fabrics was presented. The vinyl nanosilica (V? SiO2) hydrosols were prepared via one‐step water‐based sol‐gel reaction with vinyl trimethoxy silane as the precursors in the presence of the base catalyst and composite surfactant. Based on the V? SiO2 hydrosol, a fluorinated acrylic polymer/silica (FAP/SiO2) nanocomposite was prepared by emulsion polymerization. The FAP/SiO2 nanocomposites were coated onto the polyester fabrics by one‐step process to achieve superhydrophobic surfaces. The results showed that silica nanoparticles were successfully incorporated into the FAP/SiO2 nanocomposites, and a specific surface topography and a low surface free energy were simultaneously introduced onto PET fibers. The prepared PET fabric showed excellent superhydrophobicity with a water contact angle of 151.5° for a 5 μL water droplet and a water shedding angle of 12° for a 15 μL. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014 , 131, 40340. |
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| Keywords: | coatings composites polyesters |
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