| 摘要 |
PROBLEM TO BE SOLVED: To provide a damping material having excellent damping and light weight characteristics at a frequency range of 1,000 Hz or higher, especially a damping material that can be suitably used in automobiles requiring light weight. SOLUTION: The damping material is formed by superposing/integrating a foam adhesive layer and unified on/with a surface of a thermoplastic resin foam sheet having a Young modulus of 10-100 MPa, whereby any vibrational energy conveyed to the damping material is smoothly absorbed by a synergistic effect of rigidity of the thermoplastic resin foam sheet with viscoelasticity of the foam adhesive layer. COPYRIGHT: (C)2006,JPO&NCIPI
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