PVC改性沥青/蛭石复合材料的隔声性能研究  

Research on Sound Insulation Property of PVC Modified Asphalt/Vermiculite Composite

作　　者：孙矿华 姚跃飞[1] 虞学华 杨杰 甘晶晶[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,杭州310018 [2]杭州天象声学技术有限公司,杭州310015

出　　处：《浙江理工大学学报（自然科学版）》2016年第5期708-712,共5页Journal of Zhejiang Sci-Tech University(Natural Sciences)

摘　　要：通过制作出不同蛭石含量的PVC改性沥青/ 蛭石复合材料,研究其隔声性能.对复合材料进行微观形貌的观察、隔声性能及力学性能的测试.结果表明：经PVC改性过的沥青与蛭石相容性良好,制做出的复合材料具 有较好的隔声性能;在相近的面密度下,蛭石含量和蛭石目数的变化对复合材料隔声性能的影响主要在声频〉1250Hz的区域;随着面密度的增加,复合材料隔声量增高,主要体现在200-2000Hz的声频区.PVC modified Asphalt /Vermiculite composites with different vermiculite content were prepared to research sound trisulation property of composites. The microtopography of composites was observed,and the sound rnsulation property and mechanical property were tested. The result shows that ：vermiculite has a good compatibility with PVC modified Asphalt, and the composites have the excellent property of sound rnsulation; under the similar surface densi ty,changes in the quantity of vermiculite and vermiculite content mainly tnfluence sound reduction rndex of composites in the frequency region over 1250 Hz. Sound lnsulation performance of the composites decreases with the lncreasing surface densi ty,which is mainly reflected ln the frequency region from 200 to 2000 Hz.

关 键 词：沥青 蛭石 PVC隔声 复合材料 

分 类 号：TU552[建筑科学—建筑技术科学]