The Effects of Various Additive Components on the Sound Absorption Performances of Polyurethane Foams

被引：30
|
作者：
Chen, Shuming [1 ,2 ]
Jiang, Yang [1 ]
Chen, Jing [1 ]
Wang, Dengfeng [1 ]
机构：
[1] Jilin Univ, State Key Lab Automot Simulat & Control, Changchun 130022, Peoples R China
[2] Jilin Univ, Coll Automobile Engn, Changchun 130022, Peoples R China
来源：
ADVANCES IN MATERIALS SCIENCE AND ENGINEERING | 2015年 / 2015卷
基金：
中国博士后科学基金;
关键词：
ACOUSTIC PROPERTIES; POROUS MATERIALS; RUBBER;
D O I：
10.1155/2015/317561
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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.
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页数：9
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