摘要
通过阻抗管法研究了聚酰亚胺(PI)、三聚氰胺(MFF)和聚氨酯(PU)3种泡沫材料对声音的吸收特性。结果表明:与MFF和PU泡沫材料相比,PI泡沫材料具有优异的吸声降噪性能;随着材料密度的增大,3种泡沫的吸声降噪性能都有相应提高。
The sound absorption characteristics of the polyimide(PI) foam, the melamine(MFF) foam and the polyurethane(PU) foam were measured by the impedance tube method. It was found that PI foam had better sound absorption and noise reduction performance than MFF foam and PU foam at the same density. At the same time, with the increase of density, the sound absorption and noise reduction performance of the three kinds of foams had been improved correspondingly.
作者
郑逸良
周鹤
夏婉莹
聂赫然
ZHENG Yi-liang;ZHOU He;XIA Wan-ying;NIE He-ran(Changzhou Tiansheng New Materials Research Institute Co.,Ltd.,Changzhou 213028,China;Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China)
出处
《塑料科技》
CAS
北大核心
2020年第1期66-70,共5页
Plastics Science and Technology
基金
国家自然科学基金青年科学基金项目(51503197)
吉林省青年基金(20160520119JH)。
关键词
聚酰亚胺
三聚氰胺
聚氨酯
泡沫材料
吸声系数
降噪系数
Polyimide
Melamine
Polyurethane
FOAM material
Sound absorption coefficient
Noise reduction coefficient
