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Facile preparation of superhydrophobic polyester surfaces with fluoropolymer/SiO 2 nanocomposites based on vinyl nanosilica hydrosols
Author(s) -
Xu Lihui,
Cai Zaisheng,
Shen Yong,
Wang Liming,
Ding Ying
Publication year - 2014
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.40340
Subject(s) - fluoropolymer , materials science , nanocomposite , contact angle , silane , polyester , emulsion polymerization , chemical engineering , emulsion , composite material , coating , polymer , nanoparticle , polymer chemistry , copolymer , nanotechnology , engineering
A facile method to prepare superhydrophobic fluoropolymer/SiO 2 nanocomposites coating on polyester (PET) fabrics was presented. The vinyl nanosilica (VSiO 2 ) 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 VSiO 2 hydrosol, a fluorinated acrylic polymer/silica (FAP/SiO 2 ) nanocomposite was prepared by emulsion polymerization. The FAP/SiO 2 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/SiO 2 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.