Achieving strong adhesion between the interfaces of similar and dissimilar materials is highly desirable in various fields. However, the adhesion of common adhesives is diminished and even eliminated upon contact with water, because it prevents direct contact between the adhesive and adherend substrate and competes with the substrate surface groups to interact with the adhesive functional groups. So far, numerous mussel-inspired catechol-based wet adhesives have been reported, opening a pathway for the development of wet adhesives. However, catechol is sensitive to pH, oxidation, and temperature, which limit its adhesion capability and application convenience. To overcome these limitations, many non-catechol-based adhesives have been explored and prepared in recent years. This review systematically summarizes and discusses several types of wet adhesives starting with the most extensively investigated catechol-based wet adhesives, followed by a focus on non-catechol-based wet adhesives that adhere though hydrogen bonding, electrostatic interactions, dynamic covalent bonding, topological entanglement, and dry polymer crosslinking, as well as by mimicking adhesion in organisms. Finally, wet adhesives that can debond on demand are discussed. This review describes the opportunities and challenges encountered in the design and development of wet adhesives with more advanced adhesion performances and application prospects.

在各个领域中，非常需要在相似材料和不相似材料的界面之间实现强粘附力。但是，普通粘合剂的粘合力在与水接触时会减少甚至消除，因为它阻止了粘合剂与被粘物基材之间的直接接触，并与基材表面基团竞争与粘合剂官能团相互作用。到目前为止，已经报道了许多基于贻贝的邻苯二酚基湿粘合剂，这为湿粘合剂的开发开辟了道路。然而，邻苯二酚对pH，氧化和温度敏感，这限制了其粘附能力和应用便利性。为了克服这些限制，近年来已经研究和制备了许多基于非儿茶酚的粘合剂。这篇综述系统地总结和讨论了几种类型的湿粘合剂，首先是研究最广泛的基于邻苯二酚的湿粘合剂，然后重点介绍了通过氢键，静电相互作用，动态共价键，拓扑缠结而粘附的非邻苯二酚基湿粘合剂。 ，以及干燥的聚合物交联，以及通过模仿生物体中的粘附力来实现。最后，讨论了可以按需脱粘的湿粘合剂。这篇综述描述了具有更先进的粘合性能和应用前景的湿法粘合剂设计和开发中遇到的机遇和挑战。静电相互作用，动态共价键连接，拓扑纠缠和干聚合物交联，以及通过模仿生物体中的粘附力来实现。最后，讨论了可以按需脱粘的湿粘合剂。这篇综述描述了具有更先进的粘合性能和应用前景的湿法粘合剂设计和开发中遇到的机遇和挑战。静电相互作用，动态共价键连接，拓扑纠缠和干聚合物交联，以及通过模仿生物体中的粘附力来实现。最后，讨论了可以按需脱粘的湿粘合剂。这篇综述描述了具有更先进的粘合性能和应用前景的湿法粘合剂设计和开发中遇到的机遇和挑战。