This is because the polymer has a curly multi-level molecular structure, so the movement of the molecular chain will change in response to external forces on the multilayer surface; among them, the change of molecular conformation is the main contributor to energy storage and energy loss. In addition to internal friction, because the chain structure of molecules and the movement of macromolecules usually cannot respond instantaneously to changes in external forces, they have the characteristics of gradual changes. Strains require a certain degree of over-adaptation to stress, which is called hysteresis, which is also a certain degree. This increases the energy loss during the deformation process. For rubber, the order of its molecules is the main factor affecting its shock absorption performance. Generally speaking, the better the flexibility of the molecules, the lower the Tg, the worse the damping ability. On the contrary, when the chain structure contains side groups with strong polarity or large steric hindrance, the flexibility of the chain segment becomes worse, the more work is consumed to change the conformation, and the better the damping ability. The cross-linking system, especially the vulcanization system in the rubber, can significantly affect the degree of cross-linking of the rubber and the type of cross-linking bond, which in turn also affects the damping performance.