Marine corrosion and biofouling are challenges that affect marine industrial equipment, and protecting equipment with functional coatings is a simple and effective approach. However, it is extremely difficult to combine anti-corrosion and anti-fouling properties in a single coating. In this work, we combine reduced graphene oxide (rGO)/silver nanoparticles (AgNPs) with a hydrophilic polymer in a bio-based silicone–epoxy resin to create a coating with both anti-fouling and anti-corrosion properties. The excellent anti-fouling performance of the coating results from a ternary synergistic mechanism involving fouling release, contact inhibition, and a hydration effect, while the outstanding anti-corrosion performance is provided by a ternary synergistic anti-corrosion mechanism that includes a dense interpenetrating network (IPN) structure, a barrier effect, and passivation. The results show that the obtained coating possesses superior anti-fouling activity against protein, bacteria, algae, and other marine organisms, as well as excellent anti-corrosion and certain self-healing properties due to its dynamic cross-linked network of rGO/AgNPs and the hydrophilic polymer. This work provides an anti-corrosion and anti-fouling integrated coating for marine industrial equipment.

中文翻译：

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由 rGO/AgNP 和两亲性网络实现的集成防污和防腐蚀涂层


海洋腐蚀和生物污垢是影响海洋工业设备的挑战，使用功能性涂层保护设备是一种简单而有效的方法。然而，将防腐蚀和防污性能结合在单个涂层中是极其困难的。在这项工作中，我们将还原的氧化石墨烯 （rGO）/纳米银颗粒 （AgNPs） 与生物基硅-环氧树脂中的亲水性聚合物相结合，以创造一种兼具防污和防腐蚀性能的涂层。涂层出色的防污性能源于涉及污垢释放、接触抑制和水合作用的三元协同机制，而出色的防腐性能则源于包括致密互穿网络 （IPN） 结构、屏障效应和钝化在内的三元协同防腐机制。结果表明，所获得的涂层对蛋白质、细菌、藻类和其他海洋生物具有优异的防污活性，并且由于其 rGO/AgNPs 和亲水性聚合物的动态交联网络而具有优异的防腐蚀和一定的自修复性能。本作品为海洋工业设备提供防腐防污一体化涂层。