Journal
PROGRESS IN ORGANIC COATINGS
Volume 173, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.porgcoat.2022.107185
Keywords
Coatings; Anti-smudge; UV-curable; Fluoride-free; Polyurethane acrylate
Funding
- National Natural Science Foundation of China
- Natural Science Foundation of Hunan Province, China
- Natural Science Foun-dation of Guizhou Province, China
- Graduate Research Innovation Project of Hunan Province, China
- [51871097]
- [2022JJ40072]
- [ZK [2022] 547]
- [[2022] 057]
- [QL20210091]
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A novel UV-curable transparent anti-smudge coating with adjustable wetting properties has been prepared, showing strong repellency to water and oil-borne contaminants. The coating can be applied to a variety of substrates due to the advantages of non-thermal and rapid UV-curing strategy.
Anti-smudge coatings are recognized as being strongly desirable because they are able to repel numerous con-taminants and maintain surfaces spotless without cleaning. However, a simple preparation process suitable for various substrates has rarely been reported. Herein, a novel UV-curable transparent anti-smudge coating with adjustable wetting properties was prepared. Introducing polydimethylsiloxane (PDMS) as a low surface energy additive and trimethylolpropane triacrylate (TMPTA) as a crosslinking agent to a polyurethane acrylate (PUA) skeleton results in a coating that shows dynamic dewetting performance as well as extensive repellency to water -and oil-borne contaminants, including graffiti, ink, cooking oil, and salt solution. Additionally, owing to the advantages of a non-thermal and rapid UV-curing strategy, the obtained coating can be applied to a variety of substrates including heat-sensitive materials. This study provides unique insights into the design and fabrication of functional coatings aimed at dewetting surfaces, membrane separation, and petroleum and biomedical en-gineering applications.
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