文献类型：期刊文献

英文题名：Recent Advances in Preparation and Structure of Polyurethane Porous Materials for Sound Absorbing Application

作者：Dong, Shan[1,2];Duan, Yinying[1];Chen, Xinyan[1];You, Feng[1];Jiang, Xueliang[1];Wang, Dongrui[3];Hu, Dongdong[4];Zhao, Pei[1]

机构：[1]Wuhan Inst Technol, Sch Mat Sci & Engn, Hubei Key Lab Plasma Chem & New Mat, Wuhan 430205, Peoples R China;[2]Univ Sci & Technol China, Inst Adv Technol, Hefei 230088, Peoples R China;[3]Univ Sci & Technol Beijing, Sch Chem & Biol Engn, Dept Polymer Sci & Engn, Beijing 100083, Peoples R China;[4]East China Univ Sci & Technol, Sch Chem Engn, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2024

卷号：45

期号：14

外文期刊名：MACROMOLECULAR RAPID COMMUNICATIONS

收录：;EI(收录号：20241916033554);WOS:【SCI-EXPANDED(收录号:WOS:001214713700001)】；

基金：S.D. and Y.D. contributed equally to this work. This work was financially supported by the Innovation and Entrepreneurship Training Program funded by the Wuhan Institute of Technology (Grant No. 202310490002) and the Natural Science Foundation of Hubei Province (2024).

语种：英文

外文关键词：damping effect; noise pollution; polyurethane porous material; pore structure; sound absorption

摘要：Various acoustic materials are developed to resolve noise pollution problem in many industries. Especially, materials with porous structure are broadly used to absorb sound energy in civil construction and transportation area. Polyurethane (PU) porous materials possess excellent damping properties, good toughness, and well-developed pore structures, which have a broad application prospect in sound absorption field. This work aims to summarize the recent progress of fabrication and structure for PU porous materials in sound absorption application. The sound absorption mechanisms of porous materials are introduced. Different kinds of structure for typical PU porous materials in sound absorption application are covered and highlighted, which include PU foam, modified PU porous materials, aerogel, templated PU, and special PU porous materials. Finally, the development direction and existing problems of PU material in sound absorption application are briefly prospected. It can be expected that porous PU with high sound absorption coefficient can be obtained by using some facile methods. The design and accurate regulation of porous structures or construction of multilayer sound absorption structure is favorably recommended to fulfill the high demand of industrial and commercial applications in the future work. The recent advances of typical polyurethane (PU) porous sound absorption materials are reviewed in this work, including PU foam, modified PU porous materials, aerogel, templated PU, and special PU porous materials. image