首页>
外文期刊>繊維学会誌
>Studies on the Sound Absorption Properties of Paper Attached to Non-woven Fabric and the Specific Role of the Paper in Sound Absorption
【24h】
Studies on the Sound Absorption Properties of Paper Attached to Non-woven Fabric and the Specific Role of the Paper in Sound Absorption
The results discussed in this paper are for a sound-absorption system consisting of para-aramid paper with many small holes and an air permeability of less than 30 cm~3/(cm~2 · s), attached to non-woven material with a density of not more than 0.15 g/cm~3. A combination of non-woven fabric and para-aramid paper with an air permeability of less than 30 cm~3/(cm~2 · s) achieved much better sound absorption than glass wool. Although the sound absorption of the paper attached onto the non-woven fabric (RuBA_®-SA) is similar to that of the micro-perforated-panel (MPP) sound-absorption system, RuBA_®-SA can reduce both of the thickness and the weight of the sound-absorption system. The paper acts as the MPP, while the non-woven fabric plays the role of the air gap at the back of the MPP.
展开▼
机译:本文讨论的结果是一种吸声系统,该系统由具有许多小孔,透气度小于30 cm〜3 /(cm〜2·s)的对位芳纶纸组成,并与无纺布连接密度不大于0.15 g / cm〜3。透气度小于30 cm〜3 /(cm〜2·s)的无纺布和对位芳纶纸的组合比玻璃棉具有更好的吸声效果。尽管附着在无纺布(RuBA_®-SA)上的纸的吸声与微孔板(MPP)吸声系统的吸声相似,但RuBA_®-SA既可以减小厚度,又可以减小厚度。吸声系统的重量。纸张充当MPP,而无纺布则充当MPP背面的气隙。
展开▼