玻璃纤维织物结构参数对隔声性能的影响  

Effect of glass fiber fabric structural parameters on its acoustic insulation property

作　　者：姚跃飞[1] 高磊[1] 杨琼丽[1] 俞来明[1] 罗勇波[1] 傅雅琴[1] 刘冠峰[1] 

机构地区：[1]浙江理工大学先进纺织材料与制备技术教育部重点实验室,浙江杭州310018

出　　处：《纺织学报》2009年第2期52-55,共4页Journal of Textile Research

基　　金：国家自然科学基金资助项目(50173033);浙江省科技厅重点科研工业项目(2006C21081)

摘　　要：为研究玻璃纤维织物的隔声性能,选择EW100、EW200和EW300 3种不同经纬密度、线密度和层数的玻璃纤维平纹织物,采用混响室消声室法对织物的隔声性能进行测试,比较分析织物面密度、厚度、透气性、纱线单丝根数等参数对隔声性能的影响。结果表明:随织物面密度、厚度、纱线单丝根数的增加和透气性的减少,其隔声效果增强;玻纤织物对声波高频段的隔声好于中低频段的隔声;玻纤织物的隔声性能不但与织物的面密度有关,还与织物的透气性有关;在透气性较好时,其隔声量对织物的面密度具有一定的加和性,而在透气性较差时,其材料内部对声波的吸收所产生的隔声量贡献远大于面密度的贡献。In order to study the acoustic insulation property of glass fiber fabric,three different types of glass fiber plain weave fabrics EW100,EW200 and EW300 with different fabric densities,linear densities,layer numbers were collected for the tests and analyses.The acoustic insulation properties of these fabrics were measured and compared by the reverberation room-slience room method.The effect of material parameters such as fabric surface density,thickness,air-permeability,filament number,etc on the acoustic insulation property was analysed.The results showed： with the increase of fabric surface density,thickness,filament number and the reduction of air-permeability,its acoustic insulation performance increases.The acoustic insulation property of glass fiber fabric in high frequencies is superior to that in middle-low frequencies,and the acoustic insulation property of glass fiber fabric is not only related with the fabric surface density,but also with its air-permeability.When the air-permeability is good,the sound reduction index of glass fiber fabric has a certain plus capability toward the surface density,while the air-permeability is poor,the contribution of the sound reduction index generated by sound wave absorption of its material interior is much greater than that of surface density.

关 键 词：玻璃纤维织物 多孔材料 隔声 吸声 结构参数 

分 类 号：TB332[一般工业技术—材料科学与工程]