Journal
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
Volume 374, Issue 2073, Pages -Publisher
ROYAL SOC
DOI: 10.1098/rsta.2016.0193
Keywords
superomniphobic; superoleophobic; superhydrophobic; bioinspired; nanoparticles; wear-resistant
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Polypropylene (PP) is a popular plastic material used in consumer packaging. It would be desirable if such plastic containers were liquid repellent and not so easily fouled by their contents. Existing examples of superoleophobic surfaces typically rely on poorly adhered coatings or delicate surface structures, resulting in poor mechanical durability. Here, we report a facile method for creating superoleophobic PP surfaces via incorporation of nanoparticles (NPs) into the polymer surface. A solvent-NP-PP mixture was spin coated at high temperature to achieve the necessary roughness. Such surfaces were further functionalized with fluorosilane to result in a durable, super-repellent surface. They were also found to exhibit some repellency towards shampoos. This method of incorporating NPs into polymer surfaces could also prove useful in improving the antibacterial, mechanical and liquid-repellent properties of plastic devices. This article is part of the themed issue 'Bioinspired hierarchically structured surfaces for green science'.
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