纺织学报 ›› 2020, Vol. 41 ›› Issue (01): 32-38.doi: 10.13475/j.fzxb.20190105607

• 纤维材料 • 上一篇    下一篇

废弃羽毛的结构特征及其吸声性能

吕丽华, 刘英杰, 郭 静, 王 滢, 毕吉红, 叶 方   

  1. 大连工业大学纺织与材料工程学院, 辽宁大连 116034
  • 收稿日期:2019-01-28 修回日期:2019-10-27 出版日期:2020-01-15 发布日期:2020-01-14
  • 基金资助:


Structural characteristics and sound absorption properties of waste feather

LÜ Lihua, LIU Yingjie, GUO Jing, WANG Ying, BI Jihong, YE Fang   

  1. School of Textile and Material Engineering, Dalian Polytechnic University, Dalian, Liaoning 116034, China
  • Received:2019-01-28 Revised:2019-10-27 Online:2020-01-15 Published:2020-01-14

摘要:

为对废弃羽毛资源进行合理化利用,借助多功能纤维投影仪、扫描电子显微镜、傅里叶变换红外光谱仪和X 射线衍射仪分析了羽毛的大分子结构、聚集态结构及其形态结构,探究了羽毛结构与其吸声性能之间的关系。采用声阻抗传递函数法对羽毛及其他几种可用于吸声领域的纤维集合体进行吸声性能测试及对比。结果表明:几种纤维集合体吸声性能排序为废弃羽毛、木棉纤维、羊毛、大麻纤维、涤纶;在整个测试频率范围内废弃羽毛的吸声性能随纤维集合体密度的增加而提高,且纤维集合体最大吸声系数对应的吸声频率随纤维集合体密度的增加逐渐降低;废弃羽毛纤维具有优良的吸声性能,在吸声领域具有很高的应用价值。

关键词: 废弃羽毛, 结构特征, 纤维集合体, 吸声性能, 吸声机制

Abstract:

Aiming at the reuse of waste feathers, this paper reports a study on the macromolecular structure, aggregated structure and morphological structure of feathers by means of multifunctional fiber projector, scanning electron microscope, Fourier transform infrared spectrometer and X-ray diffractometer, and on the findings in the relationship between feather structure and sound absorption performance. Sound absorption properties of waste feathers and other fiber aggregates used for sound absorption were tested and compared in terms of acoustic impedance. The results show that the order (from high to low) of sound absorption efficiency for the several fiber aggregates were as follows: waste feather,kapok fiber,wool,hemp fiber,and polyester fiber. The sound absorption efficiency of the waste feather increases as the density of the fiber aggregates gets higher throughout the test frequency range, and the sound absorption frequency corresponding to the maximum sound absorption coefficient of the fiber aggregates gradually decreases with the increase of the density of the fiber aggregates. Waste feather fiber demonstrates excellent sound absorption performance and has good application potential for sound absorption.

Key words: waste feather, structure characteristics, fiber aggregates, sound absorption property, sound absorption mechanism

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