| 摘要 |
Disclosed is a sound-absorbing material, which has a flow resistivity R of 3.3x104 N.s/m4 or more, a Young's modulus E of 1.2x103 to 2.0x104 N/m2, and a loss factor delta of 0.12 or less. The sound-absorbing material of the present invention can enhance a sound absorption capability in a wide range of a low/intermediate-frequency region to a high-frequency region at a higher level as compared with conventional sound-absorbing materials.
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