In this work, a novel fluorine-free anti-smudge non-isocyanate polyurethanes (NIPU) coating system was developed by using pentaerythritol glycidyl ether-based cyclic carbonate (PGC)/ single-end cyclic carbonate poly (dimethysiloxane) (PDMS-C) and ethylene imine polymer (PEI). The PDMS-C was used as a liquid-repellent agent to endow NIPU coatings with low surface energy and PEI as curing agent to form high crosslinking density in the NIPU coating matrix. The surface roughness of NIPU film with 0.5 wt% PDMS-C was only 0.387 nm as well as the optical transmittance of the film was more than 98.5%. It also found that NIPU coatings with 0.5 wt% PDMS-C exhibited striking liquid (hexadecane, pump oil, water, milk, corn oil, fingerprint fluid and cola) repellency, and the dust could slide down with water, and there are no residual traces of dust and water on the surface of the coating, indicating the NIPU coatings displayed excellent self-cleaning performance. Besides, these NIPU coatings showed striking inhibit ink deposition, they could maintain anti-ink performance after 5000 abrasion cycles, indicating the NIPU coatings possessed excellent mechanical properties and practical application availability.

在这项工作中，使用季戊四醇缩水甘油醚基环状碳酸酯（PGC）/单端环状碳酸酯聚（二甲基硅氧烷）（PDMS-C）开发了一种新型无氟防污非异氰酸酯聚氨酯（NIPU）涂料体系和乙烯亚胺聚合物（PEI）。PDMS-C作为拒液剂赋予NIPU涂层低表面能，PEI作为固化剂在NIPU涂层基体中形成高交联密度。含 0.5 wt% PDMS-C 的 NIPU 薄膜表面粗糙度仅为 0.387 nm，薄膜的透光率超过 98.5%。还发现含 0.5 wt% PDMS-C 的 NIPU 涂层表现出惊人的液体（十六烷、泵油、水、牛奶、玉米油、指纹液和可乐）排斥性，并且灰尘可以随水滑落，且涂层表面无残留灰尘和水迹，表明NIPU涂层表现出优异的自洁性能。此外，这些NIPU涂层表现出显着的抑制油墨沉积，在5000次磨损循环后仍能保持抗油墨性能，表明NIPU涂层具有优异的机械性能和实际应用可用性。