Non-elastic glassy coating with fouling release and resistance abilities

Fouling release coatings are receiving growing attention because they are eco-friendly, where their elasticity plays a critical role in detaching biofouling. In this study, a non-elastic organic-inorganic hybrid coating is prepared by a facile sol-gel process by mixing the silane-terminated telomer...

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Published in:Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2020-01, Vol.8 (1), p.38-387
Main Authors: Chen, Runze, Xie, Qingyi, Zeng, Haohang, Ma, Chunfeng, Zhang, Guangzhao
Format: Article
Language:English
Subjects:
Adhesion
Biofilms
Biofouling
Coatings
Damage prevention
Elasticity
Fouling organisms
Leaching
Polyethylene glycol
Release agents
Rooting
Sol-gel processes
Substrates
Surface energy
Surface properties
Surface roughness
Tetraethyl orthosilicate
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Summary:Fouling release coatings are receiving growing attention because they are eco-friendly, where their elasticity plays a critical role in detaching biofouling. In this study, a non-elastic organic-inorganic hybrid coating is prepared by a facile sol-gel process by mixing the silane-terminated telomer of dodecafluoroheptyl methacrylate (DFMA) and poly(ethylene glycol) methyl ether methacrylate (PEGMA), triethoxyoctylsilane (KH832) with tetraethyl orthosilicate (TEOS). Such a coating with a tethered amphiphilic telomer is transparent and glassy. It also exhibits excellent adhesion to the substrate and high hardness, which can effectively prevent mechanical damage and also inhibit the rooting of fouling organisms. In particular, the coating has remarkable fouling release performance, even though it has a high modulus. This study clarifies that the low surface energy (∼20 mJ m −2 ) and low surface roughness (
ISSN:2050-7488
2050-7496
DOI:10.1039/c9ta09794e