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公路隧道噪声危害及无机纤维吸声材料应用

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公路隧道噪声危害及无机纤维吸声材料应用

发布日期:2019-04-24 作者: 点击:

纤维吸声材料通常可分为两种类型:植物纤维喷涂材料和根据其化学组成的无机纤维喷涂材料开心彩票网。植物纤维喷涂材料的吸声性能略高于无机纤维,但防火等级为B1,无机纤维为A级不燃材料。


无机纤维吸声材料是通过专用设备进行的,纤维被送到喷嘴,与喷嘴周围喷涂的雾状粘合剂均匀混合,然后喷到工作表面形成毛毡状。纤维结构。该结构是固体纤维和空气的多中空结构。其显着特征是固相和气相都以连续形式存在。在该结构中,固体物质以纤维形式存在并构成连续相骨架。气相连续存在于纤维材料的骨架中。由于结构的高孔隙率,大孔径和比表面积,产生了强吸声和降噪效果。

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无机纤维吸声材料

开心彩票网SHIJIEWEISHENGZUZHIZAIYINGGUO“XINKEXUEJIA”ZAZHISHANGFABIAODEYIFENBAOGAOJINGGAOSHUO,ZAOYINSHIXUDUORENJINZHANGHESIWANGDEZHONGYAOYUANYIN。ZAIOUZHOU,3%SIYUXINZANGBINGHUOZHONGFENGDERENSHIYOUJIAOTONGZAOYINYINQIDE。QUANSHIJIEMEINIANYOU210,000RENSIYUZAOYIN。XINSHUJUHAIXIANSHI,2%DEOUZHOURENKENENGZAOSHOUYANZHONGDEZAOYINGANRAO,ZHISHAOYOU15%DERENDUIZAOYINGANDAOBUAN。YANJIURENYUANGUJI,3%DEERMINGJIBINGSHIYOUZHANGQISHENGHUOZAIGAOQIANGDUJIAOTONGZAOYINZHONGYINQIDE。 (JIANZHU1)

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关键词:无机纤维吸声,无机纤维材料,无机纤维吸声材料

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