Characterization of a novel sound absorption material derived from waste agricultural film
文献类型：期刊论文
| 作者 | Zhang, Fu-Shen; Wang, Lei |
| 刊名 | CONSTRUCTION AND BUILDING MATERIALS
 |
| 出版日期 | 2017-12-30 |
| 卷号 | 157期号:0页码:237-243 |
| 关键词 | Waste Plastics Sound Absorption Porous Material Perforated Plate |
| 英文摘要 | A comprehensive sound absorption material was developed using waste agricultural plastic film as raw material. Comparing to traditional acoustic materials such as porous materials and perforated plates, the new material exhibited excellent sound absorption capability in both low-and high-frequency ranges and had a complex structure with perforations, cavities, and an air layer. The optimal average sound absorption coefficients of the material were 0.44 and 0.53 within the frequency ranges of 200-1600 and 500-6400 Hz, respectively. Furthermore, the low-frequency absorption range of the material could be adjusted according to the actual noise absorption requirements, thus broadening its application ranges. The density of the material is 0.55 g/cm(3) while its thickness is only 1 cm. Thus, it is lighter than most conventional sound absorption materials. The compressive strength of the samples were 0.56 +/- 0.01 MPa (unmanufactured), 0.51 +/- 0.01 MPa (4 perforations) and 0.45 +/- 0.02 MPa (4 perforations and 12 cavities) respectively and, its flexural strength was 91.2 +/- 1.22 N. Interfering tests indicated that water coverage could decline the sound absorption efficiency in all frequency ranges, while sand coverage only declined the low frequency absorption, but increased the high frequency absorption effect of the material. Accordingly, it is believed that the new waste-derived material is quite suitable for application on bridges and inside tunnels during high-speed road construction, and also appropriate for using as parts of vehicles and ceilings etc. (C) 2017 Elsevier Ltd. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/39220]  |
| 专题 | 生态环境研究中心_固体废弃物处理与资源化实验室 |
| 推荐引用方式 GB/T 7714 | Zhang, Fu-Shen,Wang, Lei. Characterization of a novel sound absorption material derived from waste agricultural film[J]. CONSTRUCTION AND BUILDING MATERIALS,2017,157(0):237-243. |
| APA | Zhang, Fu-Shen,&Wang, Lei.(2017).Characterization of a novel sound absorption material derived from waste agricultural film.CONSTRUCTION AND BUILDING MATERIALS,157(0),237-243. |
| MLA | Zhang, Fu-Shen,et al."Characterization of a novel sound absorption material derived from waste agricultural film".CONSTRUCTION AND BUILDING MATERIALS 157.0(2017):237-243. |
入库方式： OAI收割
来源：生态环境研究中心
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