Self-Healing Elastomers and Coatings via Metal Coordination Bonds

Self-healing materials can recover the materials from physical damage, and extend the life of equipment. Metal coordination bonds are supramolecular interactions with tunable stability and sensitivity to external stimuli, which are crucial for developing self-healing materials. Incorporating metal coordination bonds into elastomers and coatings can enable materials to repair damage and enhance material performance. This review details the advance in self-healing elastomers and coatings. The structural characteristics, mechanical properties, and self-healing efficacy of these materials are discussed, and a perspective on the challenges and development directions is given.