蜂窝织物增强聚氯乙烯复合材料的隔音性能

Sound insulation of honeycomb weave fabric reinforced polyvinyl chloride composite

为研究蜂窝织物聚氯乙烯(PVC)复合材料的隔音性能,选用58.3 tex×2的棉纱为经纬纱,在自动织样机上织造面密度基本相同而组织循环数不同的蜂窝织物,以埃洛石纳米管(HNTs)填充的PVC为基体,制备蜂窝织物/PVC复合材料,再以蜂窝织物/PVC复合材料为芯材,制备三明治结构复合材料。采用双声道声学分析仪,对制备样品的隔音性能进行测试和分析。结果表明:不同循环数的蜂窝织物对复合材料的隔音效果有很大影响,当组织循环数为6时,复合材料显示了良好的隔音效果;对于蜂窝织物复合材料作为芯材的三明治结构复合材料而言,组织循环数为6时,对低频具有良好的隔音性能,组织循环数为14时,对高频率具有良好的隔音性能。

In order to study the acoustic insulation property of honeycomb weave fabric/PVC composite material,a honeycomb weave fabric with the same surface density but different repetitions of weave was woven on an automatic sample loom using 58.3 tex×2 cotton yarn as warp and weft.Honeycomb weave fabric/PVC composite material was fabricated using the halloysite nanotubes（HNTs） filled polyvinyl chloride（PVC） as substrate,and then a sandwich structure composite was made with the honeycomb weave fabric/PVC composite as core material.The sound insulation quality of prepared samples was tested by acoustic analyzer of two-channel.The results showed that repetitions of weave have great influence on the sound insulation effect of honeycomb weave fabric.When the repetitions of weave are 6,the composite material displays good sound insulation.In the case of sandwich composite material with the honeycomb weave fabric/PVC composite as core material,it exhibits good sound insulation to low frequency when the repetitions of weave are 6,and its good sound insulation to high frequency is found when the repetitions of weave are 14.