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A substrate-independent transparent UV-curable coating with excellent anti-smudge performance
Progress in Organic Coatings ( IF 6.5 ) Pub Date : 2022-10-04 , DOI: 10.1016/j.porgcoat.2022.107185
Hongjian Zhang , Chengliang Zhou , Jie Peng , Bo Chen , Xinyu Pan , Wentao Xiong , Xiaoping Zhang , Zhizheng Xu , Xiaohu Luo , Yali Liu

Anti-smudge coatings are recognized as being strongly desirable because they are able to repel numerous contaminants 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 engineering applications.



中文翻译:

一种独立于基材的透明紫外线固化涂料,具有出色的防污性能

防污涂层被认为是非常需要的,因为它们能够排斥许多污染物并保持表面一尘不染而无需清洁。然而,很少报道适用于各种基材的简单制备工艺。在此,制备了一种具有可调润湿性能的新型紫外光固化透明防污涂料。将聚二甲基硅氧烷 (PDMS) 作为低表面能添加剂,将三羟甲基丙烷三丙烯酸酯 (TMPTA) 作为交联剂引入聚氨酯丙烯酸酯 (PUA) 骨架,使涂料显示出动态去湿性能以及对水性和油性的广泛排斥性污染物,包括涂鸦、墨水、食用油和盐溶液。此外,由于非热和快速紫外线固化策略的优势,获得的涂层可以应用于包括热敏材料在内的各种基材。这项研究为针对去湿表面、膜分离以及石油和生物医学工程应用的功能涂层的设计和制造提供了独特的见解。

更新日期:2022-10-04
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