-
公开(公告)号:US07322440B2
公开(公告)日:2008-01-29
申请号:US10538494
申请日:2003-12-08
CPC分类号: B32B27/065 , B32B5/18 , B32B7/02 , B32B27/12 , B32B27/28 , B32B27/30 , B32B27/306 , B32B27/32 , B32B27/34 , B32B2305/022 , B32B2323/04 , B32B2329/04 , B32B2377/00 , B32B2605/00 , B60R13/08 , G10K11/168
摘要: An ultra light, noise reducing composite (1) comprises an acoustically transparent, light weight film (6) between an underlay layer (5) and an air flow resistance layer (4). This composite allows to easily tune the acoustic properties by balancing the absorption and sound transmission behaviour of the composite (1). This air flow resistance layer (4) has an air flow resistance of between 500 Ns/m3 and 10,000 Ns/m3 and an area mass between 200 g/m2 and 3,000 g/m2. The underlay layer (5) has a stiffness value in the range between 100 Pa and 100,000 Pa. The light weight film (6) may consist of a synthetic foil and preferably has a thickness of 0.01 mm.
摘要翻译: 一种超轻,降噪复合材料(1)包括在底层(5)和气流阻力层(4)之间的声透明的轻质薄膜(6)。 该复合物允许通过平衡复合材料(1)的吸收和声音传播行为来容易地调节声学性质。 该气流阻力层(4)的气流阻力为500Ns / m3〜10,000Ns / m3,面积质量为200g / m 3〜3,000g / m 2。 底层(5)的刚度值在100Pa〜100,000Pa的范围内,轻质薄膜(6)可以由合成箔构成,优选厚度为0.01mm。