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Title: Durable waterborne hydrophobic bio-epoxy coating with improved anti-icing and self-cleaning performance
Authors: Zheng, Shunli
Bellido-Aguilar, Daniel Angel
Wu, Xinghua
Zhan, Xuejun
Huang, Yinjuan
Zeng, Xianting
Zhang, Qichun
Chen, Zhong
Keywords: Engineering::Materials
Issue Date: 2019
Source: Zheng, S., Bellido-Aguilar, D. A., Wu, X., Zhan, X., Huang, Y., Zeng, X., . . . Chen, Z. (2018). Durable waterborne hydrophobic bio-epoxy coating with improved anti-icing and self-cleaning performance. ACS Sustainable Chemistry & Engineering, 7(1), 641-649. doi:10.1021/acssuschemeng.8b04203
Journal: ACS Sustainable Chemistry & Engineering
Abstract: This study reports an environment-friendly waterborne hydrophobic bioepoxy coating (WHBC), prepared by introducing dual-scale SiO 2 nanoparticles and (3-glycidyloxypropyl) trimethoxysilane into an aqueous mixture containing the isosorbide-based epoxy and a hydrophobic curing agent. The coatings were applied on Fe foil substrates using a one-step spin-coating method. The optimal coating with 33.3 wt % SiO 2 nanoparticles exhibits high hydrophobicity with a water contact angle (CA) of 153.0 ± 1.1° and a sliding angle (SA) of 14.3 ± 1.9°. This optimal coating is found to have good mechanical durability against sand erosion. It maintained a high CA of 151.3 ± 2.0° and increased SA of 23.4 ± 3.7° after mechanical sandblasting for 30 s. The as-prepared optimal coating also showed excellent self-cleaning performance and was able to retain the good self-cleaning ability after the sandblasting. In addition, the as-obtained optimal coating shows a much lower icing temperature, a significantly longer icing delay time, and a low ice adhesion strength at 0.101 ± 0.019 MPa. The developed coating is biobased and green, and it has various promising applications for marine, aerospace, energy harvesting, and sports applications.
ISSN: 2168-0485
DOI: 10.1021/acssuschemeng.8b04203
Rights: This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Sustainable Chemistry & Engineering, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see
Fulltext Permission: open
Fulltext Availability: With Fulltext
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