Experimental and theoretical investigation of sound transtmssion loss for polycarbonate, poly(methyl methacrylate), and glass

被引:8
|
作者
Sabet, Seyed Mohammad [1 ]
Ohadi, Abdolreza [1 ]
机构
[1] Amirkabir Univ Technol, Tehran Polytech, Dept Mech Engn, Acoust Res Lab, Tehran, Iran
关键词
adhesives; polycarbonates; properties and characterization; TRANSMISSION LOSS; FIELD; INSULATION; WINDOWS; SINGLE; PANELS;
D O I
10.1002/app.42988
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
In this study, the effects of the soundproofing properties of polycarbonate (PC), poly(methyl methacrylate) (PMMA), and glass were investigated. We fabricated the specimens into 3 mm thick sheets by direct hot compression molding as a monolithic sample and also by gluing three thin sheets together into a multilayer. Sound transmission loss (STL) was measured by an impedance tube over the frequency range 63-1600 Hz. The results indicate that because of the close density, the STLs for PC and PMMA were almost the same above 1200 Hz. Also, PMMA had a greater STL than PC in the range 63-300 Hz. In a comparison of the monolithic and multilayered samples, we demonstrated that the epoxy-based adhesive interlayers had more efficient bonding than the silicone-based ones. The multilayered polymer/silicone specimens showed a sharp drop in the STL values compared to the monolithic samples. However, the multilayered polymer/epoxy specimens revealed similar behavior to the monolithic polymers. (C) 2015 Wiley Periodicals, Inc.
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页数:6
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