噪声与振动控制2018，Vol.38Issue(3)：167-171,5.DOI:10.3969/j.issn.1006-1355.2018.03.032
PVC/CaCO3复合材料的隔声及应用特性
Acoustic Insulation and Applicable Characteristics of PVC/CaCO3 Composites
摘要
Abstract
The acoustic insulation, tear strength and banding performance of the PVC/CaCO3 composites with different content of CaCO3 are studied experimentally. Influence of the content of CaCO3 on the acoustic insulation and applicable characteristics of the composites is analyzed. The tearing mechanism of the composites is detected. Results show that the PVC/CaCO3 composite material is anisotropic. With the increasing of CaCO3 content, the sound insulation effect of the composite increases first and then decreases, and its tear strength and fatigue lifespan of bending deformation decrease. As an acoustic insulation material for air conditioners, the PVC/CaCO3 composite has an optimal CaCO3 content of 50％. It is found that the sound insulation effect, tear strength and bending performance of the PVC/CaCO3 composite are all better than those of chloroprene rubber. Furthermore, the PVC/CaCO3 composite material has nearly the same density as the chloroprene rubber but lower cost than the chloroprene rubber. So, for the acoustic insulation and economic purposes, the chloroprene rubber can be replaced by the PVC/CaCO3 composite material completely. Finally, the cutting criterion and the sample type for tear performance testing of the PVC/CaCO3 composite are proposed for the application in acoustic insulation of air conditioners.关键词
声学/PVC/CaCO3复合材料/空调隔音/撕裂强度/折弯性能Key words
acoustics/PVC/CaCO3 composite material/acoustic insulation for air conditioners/tear strength/bending performance分类
通用工业技术引用本文复制引用
张立平..PVC/CaCO3复合材料的隔声及应用特性[J].噪声与振动控制,2018,38(3):167-171,5.基金项目
国家自然科学基金资助项目(51405083) （51405083）
校级优秀青年培养计划资助项目(fsyq201409) （fsyq201409）
