期刊
ADVANCES IN MATERIALS SCIENCE AND ENGINEERING
卷 2015, 期 -, 页码 -出版社
HINDAWI LTD
DOI: 10.1155/2015/317561
关键词
-
资金
- National Natural Science Foundation [51205152]
- Jilin Provincial Natural Science Foundation [20140101075JC]
- Specialized Research Fund for the Doctoral Program of Higher Education [20120061120036]
- China Postdoctoral Science Foundation [2012M520675, 2013T60322]
- Jilin Province Chunmiao Talents Scheme
- China Automobile (Beijing) Vehicle Lightweight Technology Institute
Flexible polyurethane (PU) foams comprising various additive components were synthesized to improve their acoustic performances. The purpose of this study was to investigate the effects of various additive components of the PU foams on the resultant sound absorption, which was characterized by the impedance tube technique to obtain the incident sound absorption coefficient and transmission loss. The maximum enhancement in the acoustic properties of the foams was obtained by adding fluorine-dichloroethane (141b) and triethanolamine. The results showed that the acoustic absorption properties of the PU foams were improved by adding 141b and triethanolamine and depended on the amount of the water, 141b, and triethanolamine.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据