聚氨酯水声吸声材料及吸声机理研究进展  

Research Progress on Polyurethane Underwater Acoustic Absorption Materials and Acoustic Absorption Mechanism

作　　者：李校辉 邢素丽[1] 杨金水[1] 梁威 尹昌平[1] Li Xiaohui;Xing Suli;Yang Jinshui;Liang Wei;Yin Changping(College of Aerospace Science and Engineering,National University of Defense Technology,Changsha 410073,China)

机构地区：[1]国防科技大学空天科学学院,长沙410073

出　　处：《工程塑料应用》2018年第7期127-132,共6页Engineering Plastics Application

基　　金：国防科技项目基金(3101013)

摘　　要：对声波损耗机理及聚氨酯(PUR)水声吸声材料的吸声机理进行了分析,综述了PUR水声吸声材料体系和声学结构设计的研究进展和应用,其中重点介绍了传统PUR水声吸声材料、微粒增强PUR水声吸声材料、发泡PUR水声吸声材料、空腔共振式吸声结构、阻抗渐变式吸声结构和耐压式吸声结构,最后指出了目前PUR水声吸声材料存在的不足并展望了其在未来的发展趋势。The mechanism of sound wave loss and the acoustic absorption mechanism of polyurethane underwater sound-absorbing materials were analyzed. The research progress and application of polyurethane underwater sound-absorbing material system and acoustic structure design were summarized. The traditional polyurethane underwater sound-absorbing material, particle-enhanced polyurethane underwater sound-absorbing material,foaming polyurethane underwater sound-absorbing material,air cavity-resonance sound-absorbing structure,impedance-graded sound-absorbing structure and pressure-resistance sound-absorbing structure were mainly introduced. Finally,the problems and development directions of polyurethane underwater sound-absorbing material were pointed and summarized.

关 键 词：聚氨酯 吸声机理 水下吸声 改性增强 声学结构 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业]