This study is led by Dr. Jinrong Wu (State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University). In high-speed devices, cracks propagate very quickly and brings irreversible destruction. However, materials that can self-heal quickly often have poor performance. In many applications, once a crack appears, a catastrophic accident may occur if it is not repaired in time. Therefore, it is extremely important to develop fast self-healing materials without compromising their mechanical properties.