纤维参数对聚酯纤维板吸声性能的影响研究  

Effect of fiber parameter on the sound absorption property of polyester fiber panel

作　　者：李涛 何宇辰 姚智敏 蔡俊[2] 李华[3] LI Tao;HE Yuchen;YAO Zhimin;CAI Jun;LI Hua(Economic & Technical Research Institute of State Grid Anhui Electric Power Co, Ltd, Anhui 230022, China;School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;School of Material Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China)

机构地区：[1]国网安徽省电力有限公司经济技术研究院,合肥230022 [2]上海交通大学环境科学与工程学院,上海200240 [3]上海交通大学材料科学与工程学院,上海200240

出　　处：《功能材料》2021年第6期6097-6101,6109,共6页Journal of Functional Materials

基　　金：国网安徽经研院科技项目(B31209190005)。

摘　　要：纤维材料是目前常用的吸声材料。而作为纤维材料的原料,纤维的参数差异将决定纤维材料的吸声性能好坏。为此,本研究制备了不同纤维参数的聚酯纤维板,开展了纤维截面形状、纤维细度和纤维长度对聚酯纤维板吸声性能的影响分析,采用响应面法优化得到了最佳纤维参数的聚酯纤维板。研究结果表明,异形聚酯纤维的吸声性能在中频阶段较优于普通圆形聚酯纤维,其中扁平形截面纤维性能最优。纤维细度小的聚酯纤维吸声性能相对更好,而纤维长度对吸声性能没有明显影响。响应面优化分析得到的最优纤维参数为纤维截面扁平,纤维细度3 D、纤维长度65 mm,在此参数条件下制备的8 mm聚酯纤维板后留20 mm空腔的平均吸声系数达到0.54。Fiber materials are commonly used in sound absorption.As the raw material of fiber material,the difference of fiber parameters will determine the sound absorption performance of fiber material.In this study,polyester fiber panels with different fiber parameters are prepared.The influence of fiber cross-sectional shape,fiber fineness and fiber length on the sound absorption performance of polyester fiber panel is analyzed.The response surface methodology is adopted to optimize the fiber parameters of polyester fiber panels.The research results show that the sound absorption performance of non-circular section polyester fibers is better than that of ordinary circular polyester in the mid-frequency stage,and the polyester fiber material with flat section has the best sound absorption performance.Polyester fibers with small fiber fineness have better sound absorption performance,while fiber length has little effect on sound absorption performance.The optimal fiber parameters by response surface optimization analysis are obtained.When the fiber section is flat,the fiber fineness is 3D with fiber length of 65 mm.The average sound absorption coefficient of 8 mm thick polyester panel with 20 air cavity depth reaches 0.54.

关 键 词：聚酯纤维 吸声系数 纤维参数 异形截面 响应面优化 

分 类 号：TB332[一般工业技术—材料科学与工程]