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Easy-to-clean multifunctional coatings by sol–gel processing for polymer substrates

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Abstract

In this paper, sol–gel-based transparent easy-to-clean (ETC) coatings are fabricated using organic–inorganic hybrid precursors and fluorinated silane-based hydrophobic surfactants. ETC coatings were applied on different plastic materials such as polycarbonate, poly(methyl methacrylate) and polyethylene terephthalate. Due to the low temperature resistance of the plastic materials, usually lower than 120 °C, low temperature processes such as ammonia gas curing and ultraviolet irradiation curing were employed for coatings development. Alumina nanoparticles were used to improve the mechanical properties of the coatings, and antimicrobial effect was realized by incorporation of silver nanoparticles, and high bacterial killing rates were obtained with very low silver concentration (50 ppm). All the coatings developed on different substrates show high water/hexadecane contact angles with good wet scrubbing resistance.

Graphical Abstract

Abrasion-resistant multifunctional sol–gel coating on PMMA substrate

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Acknowledgments

This work is partially financial supported by Singapore SPRING TIP funding for SMEs.

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Authors and Affiliations

  1. Singapore Institute of Manufacturing Technology, 71 Nanyang Drive, Singapore, 638075, Singapore

    Xiao Zhang, Ruxing Cai, Jing Yuan Wang & Linda Yongling Wu

  2. CEL Coatings Industries Pte Ltd, 23 Neythal Road, #02-02, Singapore, 628588, Singapore

    Fengmin Liu

Authors
  1. Xiao Zhang
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  2. Ruxing Cai
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  3. Jing Yuan Wang
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  4. Fengmin Liu
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  5. Linda Yongling Wu
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Correspondence to Xiao Zhang.

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Zhang, X., Cai, R., Wang, J.Y. et al. Easy-to-clean multifunctional coatings by sol–gel processing for polymer substrates. J Sol-Gel Sci Technol 75, 17–24 (2015). https://doi.org/10.1007/s10971-015-3669-5

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  • DOI: https://doi.org/10.1007/s10971-015-3669-5

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