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Preparation of Fluorine-Free Superhydrophobic Cotton Fabric with Polyacrylate/SiO2 Nanocomposite

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Fluorine-free superhydrophobic cotton fabric was fabricated by coating polyacrylate (PA)/SiO2 nanocomposite. PA/SiO2 nanocomposite was prepared based on the modified SiO2 nanoparticles with double bonds and hexadecyl groups by solution polymerization of butyl acrylate (BA), methyl methacrylate (MMA) and octadecylmethacrylate (OMA). The obtained cotton fabric showed excellent superhydrophobicity with a water contact angle of 152.2±0.4° and a water shedding angle of 8.0±0.2°, due to the simultaneous introduction of surface topography constructed by modified SiO2 nanoparticles and low surface free energy PA adhesive layer and hexadecyl groups onto cotton fibers. The as-obtained products were characterized by Fourier-transform infrared spectrometry (FT-IR), thermal gravimetric analysis (TG), scanning electron microscopy (SEM) and size distribution analysis. The obtained superhydrophobic fabric coated by PA/SiO2 demonstrated good mechanical stability and self-cleaning. The PA/SiO2 coating treatment caused little loss in the tensile strength, breathability, and whiteness of the treated fabric. This approach with improved human/environmental friendliness can pave the potential way for the preparation of superhydrophobic surfaces.
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Keywords: Cotton Fabrics; Fluorine-Free; Polyacrylate/SiO2 Nanocomposite; Superhydrophobic

Document Type: Research Article

Affiliations: College of Fashion and Textiles, Shanghai University of Engineering Science, Shanghai 201620, China

Publication date: April 1, 2020

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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