3D间隔织物/改性空心微珠复合材料吸声性能研究  

Research onSound Absorption Properties of 3D Spacer Fabric/Modified Hollow Microspheres Composites

作　　者：何万万 刘羿辰 孟家光 余灵婕[1] 支超 HE Wan-wan;LIU Yi-chen;MENG Jia-guang;YU Ling-jie;ZHI Chao(School of Textile Science and Engineering,Xi’an Polytechnic University,Xi’an 710048;Key Lab of Functional Textile Material and Product,Ministry of Education,Xi’an Polytechnic University,Xi’an 710048)

机构地区：[1]西安工程大学纺织科学与工程学院,陕西西安710048 [2]西安工程大学功能性纺织材料及制品教育部重点实验室,陕西西安710048

出　　处：《纺织科学与工程学报》2024年第1期41-46,共6页Journal of Textile Science & Engineering

基　　金：国家自然科学基金项目(51903199);陕西省创新能力支撑计划(2022KJXX-40);陕西省重点研发计划(2023-YBGY-490);陕西高校青年杰出人才支持计划项目(2020);陕西省自然科学基础研究计划资助项目(2019JQ-182,2018JQ5214);陕西省教育厅科研计划项目(22JK0394);陕西省科学技术协会青年人才托举计划项目(20230139)。

摘　　要：将3D经编间隔织物加入到空心微珠增强聚氨酯基复合泡沫塑料中,制备出新型3D间隔织物/改性空心微珠复合材料,并对所加入微珠进行界面改性,以改善其与聚氨酯基体的界面结合及吸声性能。采用阻抗管传递函数法对4种具有不同规格的试样进行吸声系数测试,对试验结果分析可知,改性后微珠在一定程度上提升此种新型复合材料的吸声性能,改性S60微珠增强的复合材料样品吸声性能更优。此外,该复合材料在中低频率下的吸声系数要小于高频率下的吸声系数。In this paper,3D warp knitted spacer fabric is added to hollow microspheres reinforced polyurethane matrix composite foam to prepare a new type of 3D spacer fabric/modified hollow microspheres composite,and the interface modification of the added microspheres is carried out to improve the interface binding and sound absorption properties of the polyurethane matrix.Impedance tube transfer function method is used to test the sound absorption coefficient of four samples with different specifications.The analysis of the test results show that the modified microspheres improve the sound absorption properties of the new composite to a certain extent,and the composite sample reinforced by the modified S60 microspheres has better sound absorption properties.In addition,the sound absorption coefficient of the composite at low and medium frequencies is smaller than that at high frequencies.

关 键 词：空心微珠 经编间隔织物 吸声复合材料 界面改性 

分 类 号：TB332[一般工业技术—材料科学与工程] TS186.1[轻工技术与工程—纺织材料与纺织品设计]