The concept of self-healing stems from the self-healing phenomenon in biology. There is a self-healing process in rganisms from the molecular level (such as DNA repair) to the macroscopic level (such as the healing of small skin wounds). Inspired by nature, many self-healing polymer materials have been designed and synthesized. They can detect cracks autonomously and self-heal the cracks through a certain mechanism, which can effectively extend the service life of materials, improve material safety, and reduce waste. Such materials have important scientific significance and application value.
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