Smooth liquid-like surfaces formed by flexible polymer brushes or alkyl monolayers exhibit great potential as easy-cleaning coatings. However, solvent-free, and easily curable coating formulations that are environmentally-friendly, omniphobic, low-cost, and durable liquid-like surfaces are still lacking. This paper reports the synthesis of a polydimethylsiloxane (PDMS) modified silicone resin additive for the preparation of easy-cleaning photocurable liquid-like coatings. A highly-branched silicone resin (MAP) containing PDMS and acrylate groups was synthesized by acid hydrolysis condensation and then added to polyurethane acrylate (PUA) to prepare UV-curable coatings. The coatings with only 1 wt% MAP addition exhibited hydrophobicity and oleophobicity, as well as dust and graffiti resistance due to their low surface tension and the self-migration of PDMS chains in the MAP resin. Meanwhile, the coating surface was smooth, highly transparent, and showed excellent abrasion resistance because the highly-branched structure of MAP was conjugated with many acrylate groups. This enhanced the compatibility of the MAP resin with PUA and strengthened the cross-link density of the coating. Consequently, the photocurable easy-cleaning coating provides a facile strategy for preparing environmentally friendly and mechanically robust anti-smudge coatings.

由柔性聚合物刷或烷基单分子层形成的光滑液体表面作为易清洁涂层具有巨大的潜力。然而，仍然缺乏无溶剂、易固化、环保、憎水、低成本和耐用的液体状表面的涂料配方。本文报道了聚二甲基硅氧烷（PDMS）改性有机硅树脂添加剂的合成，用于制备易清洁的光固化液体涂料。通过酸水解缩合合成含有PDMS和丙烯酸酯基团的高支化有机硅树脂(MAP)，然后将其添加到聚氨酯丙烯酸酯(PUA)中制备紫外光固化涂料。仅添加 1 wt% MAP 的涂料由于其低表面张力和 MAP 树脂中 PDMS 链的自迁移而表现出疏水性和疏油性，以及防尘和防涂鸦性能。同时，由于MAP的高度支化结构与许多丙烯酸酯基团共轭，涂层表面光滑、高度透明，并表现出优异的耐磨性。这增强了MAP树脂与PUA的相容性并增强了涂层的交联密度。因此，光固化易清洁涂料为制备环保且机械坚固的防污涂料提供了一种简便的策略。