RESTRAINED VIBRATION DAMPING MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a restrained vibration damping material constituted in such a manner that vibration damping performance can be exhibited most in a service temperature region. SOLUTION: This restrained vibration damping material consists of a tacky adhesive layer, a vibration damping layer and a restraining layer. The tacky adhesive layer having the peak temperature of the loss tangent (tanδ) corresponding to the service temperature region of this restraining vibration damping material is used, by which the peak temperature of the loss coefficient (η) of the restraining vibration damping material is confined within the service temperature region described above.