Adhesives with polymeric bases are indispensable in joining various surfaces across numerous industries and applications. The recognition of environmental concerns and the demand for sustainable materials has spurred researchers to explore innovative strategies for improving the recyclability of polymeric adhesives. These adhesives are mostly thermosets-based, thus, infusible and insoluble in nature. This review discusses potential solutions for implementing covalent adaptable networks (CANs) in thermoset adhesives to enable their recycling. Insights into the factors influencing these adhesives’ recyclability and practical applications are provided, paving the way for a comprehensive understanding of their potential impact on sustainable adhesive technologies. Whereas thermal-assist CANs dominate the field of recyclable adhesives, several other stimuli, like pH and light, are also discussed, though further research is needed to make them more applicable.

中文翻译：

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打破牢不可破的纽带：迈向可持续粘合剂的未来

聚合物基粘合剂对于连接众多行业和应用的各种表面是不可或缺的。对环境问题的认识和对可持续材料的需求促使研究人员探索提高聚合物粘合剂可回收性的创新策略。这些粘合剂大多是热固性粘合剂，因此本质上是不熔且不溶的。本综述讨论了在热固性粘合剂中实施共价适应性网络 (CAN) 的潜在解决方案，以实现其回收利用。深入了解影响这些粘合剂可回收性和实际应用的因素，为全面了解它们对可持续粘合剂技术的潜在影响铺平了道路。尽管热辅助 CAN 在可回收粘合剂领域占据主导地位，但还讨论了其他一些刺激因素，例如 pH 值和光，尽管需要进一步研究以使它们更适用。