Principle Of High Damping Rubber
The damping form of damping rubber is the process of generating relative motion of the macromolecular chain and changing mechanical energy into heat energy when the material is subjected to external force.
Damping mechanism of high damping rubber: rubber is a macromolecular chain of organic matter, and the movement of macromolecular chain segments is essentially a relaxation process. The 3 mechanical forms of rubber materials vary with temperature:
The first "glass, movement of the molecular chain segment energy is low, the storage modulus is very high, the molecular bond can only do weak under external force in rotation, the backbone is almost frozen state, so the mechanical energy into heat can not be dissipated, only as a potential energy storage material, the loss factor is very small, i.e. the damping performance is poor.
Second kinds of elastic state, the large molecular chain segment is easy to move, the macromolecular chain is easy to adapt to external force to stretch or curl, but can not absorb enough mechanical energy, therefore, the damping property of rubber material has not reached the optimum.
Third kinds of glass transition to elastic state form, due to the synergistic effects of the molecular chain segment of internal friction and segment, material damping performance is good, can absorb the vibration energy is large, the loss factor, good damping property.
Haining Qianlang Rubber Products Factory
ADD: 1st Liluqiao, Zhengyang, Maqiao Street Haining, Zhejiang 314419 China.