SOUND-ABSORBING MATERIAL AND METHOD FOR PRODUCING THE SAME， AND SOUND-ABSORBING METHOD
收藏国家林业和草原科学数据中心2023-02-12 更新2024-03-07 收录
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PROBLEM TO BE SOLVED: To provide a sound-absorbing material capable of absorbing sounds in a wide frequency， and to provide a method for producing the same and a sound-absorbing method. SOLUTION: A sound-absorbing material includes a fiber assembly 6 and a resin foam 2 having independent bubbles， wherein: the resin foam 2 has a rugged surface on at least one surface thereof; a hole part 8 is formed which intrudes from the rugged surface to the middle of a thickness direction but penetrates at least the independent bubble; and the fiber assembly 6 is laminated or positioned directly or indirectly on the rugged surface. An air space 7 may be formed between a trough 5 of the rugged surface of the resin foam 2 and the fiber assembly 6; the resin foam 2 may be in a plate shape or in a sheet shape; and the fiber assembly 6 is in a planar shape. SELECTED DRAWING: Figure 1
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国家林业和草原科学数据中心
创建时间：
2023-02-12
