硅藻泥-草梗复合吸声材料的测试研究  

Study on the test of the compound sound absorption material of diatom mud and straw stalk

作　　者：周博[1] 范雨琪 陈晓刚[1] 朱小刚[1] 林辉[1] ZHOU Bo;FAN Yuqi;CHEN Xiaogang;ZHU Xiaogang;LIN Hui(School of City Construction, Jiangxi Normal University, Nanchang 30022, China;School of software, Jiangxi Normal University, Nanchang 330022, China)

机构地区：[1]江西师范大学城市建设学院,江西南昌330022 [2]江西师范大学软件学院,江西南昌330022

出　　处：《安徽大学学报（自然科学版）》2018年第3期79-86,共8页Journal of Anhui University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(51608237)

摘　　要：以硅藻泥、草梗、氧化镁为主要原料,加入一定的辅助材料,研制出一种新型复合多孔吸声材料.分析材料的吸声原理及基本特性,采用驻波管法在200~2 000Hz频段范围内测试材料的吸声性能.结果表明,材料的吸声性能受草梗掺量、尺寸、材料的密度和厚度以及背部空腔尺寸的影响,与一般常用吸声材料的吸声系数进行比较,综合吸声性能优良.A new type of composite porous material was developed using the diatom mud,straw stalk,magnesium oxide as the main raw material with some auxiliary materials added.The principle and basic characteristics of sound absorption material were analyzed.The sound absorption properties of materials were tested by standing wave test method in the frequency range200-2 000 Hz tube.The results showed that the sound absorption properties of materials were influenced by the amount of mixed straw stalk,size,material density,thickness and the back cavity size effect.Compared with the absorption coefficient of commonly used sound-absorbing material,it has excellent comprehensive sound absorption properties.

关 键 词：硅藻泥 草梗 吸声材料 吸声系数 

分 类 号：TU112.5[建筑科学—建筑理论]