Qiu Haoyi, Hölken Iris, Gapeeva Anna, Filiz Volkan, Adelung Rainer, Baum Martina
Functional Nanomaterials, Institute for Materials Science, Faculty of Engineering, Kiel University, Kaiserstr. 2, D-24143 Kiel, Germany.
Phi-Stone AG, Kaiserstr. 2, D-24143 Kiel, Germany.
Materials (Basel). 2018 Nov 29;11(12):2413. doi: 10.3390/ma11122413.
Ecological considerations strongly necessitate the development of environmentally friendly antifouling paints. A promising alternative to biocide containing antifouling paints are fouling-release coatings, which are non-toxic and designed to prevent permanent attachment of marine organisms to the surface, due to their low surface energy. However, these coatings suffer from insufficient mechanical properties, which make them unsuitable for mechanically stressed surfaces e.g., on ship hulls. To overcome those obstacles, polydimethylsiloxane (PDMS)-polythiourethane (PTU) composites modified with tetrapodal shaped micro-nano ZnO particles (t-ZnO) were produced and characterized by evaluating the surface energy, mechanical properties, and fouling-release performance. Among all variations, PTU/1 wt.% PDMS composites with 1 wt.% t-ZnO particles possess superior properties for applications as fouling-release coatings for maritime purposes.
从生态角度考虑，大力发展环境友好型防污涂料势在必行。不含杀生剂的防污涂料的一种有前景的替代方案是低表面能防污涂料，这种涂料无毒，旨在防止海洋生物永久附着在表面。然而，这些涂料的机械性能不足，这使得它们不适用于承受机械应力的表面，例如船体表面。为了克服这些障碍，制备了用四足形微纳米氧化锌颗粒（t-ZnO）改性的聚二甲基硅氧烷（PDMS）-聚硫脲（PTU）复合材料，并通过评估表面能、机械性能和防污性能对其进行了表征。在所有变体中，含有1 wt.% t-ZnO颗粒的PTU/1 wt.% PDMS复合材料具有优异的性能，可作为海上防污涂料应用。
