Investigation on the sound absorption performance of polypropylene/polyethylene glycol ultrafine fibers by melt differential electrospinning process

•In this work, ultrafine fibers sound absorbers were successfully prepared using the MDES method. MDES method is applied to the field of sound absorption and noise reduction for the first time.•This study improves the sound absorption and noise reduction effect of medium and low frequency by adjusti...

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Veröffentlicht in:Applied acoustics 2022-11, Vol.200, p.109056, Article 109056
Hauptverfasser: Zhang, Liyan, Hou, Qinzheng, Li, Haoyi, Xu, Hao, Li, Xibiao, Liu, Yuliang, Yang, Weimin
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Sprache:eng
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Zusammenfassung:•In this work, ultrafine fibers sound absorbers were successfully prepared using the MDES method. MDES method is applied to the field of sound absorption and noise reduction for the first time.•This study improves the sound absorption and noise reduction effect of medium and low frequency by adjusting the fiber fineness, thickness and cavity depth of the sound absorber.•In this study, the influence of the average fiber diameter, thickness and cavity depth on the sound absorption performance was discussed, and the influence rules were obtained.•The method is green and efficient, and provides a new idea for the green and efficient production of low and medium frequency sound absorbers. Ultrafine fibers have broad application prospects in the field of sound absorption. In this work, novel ultrafine sound absorbers of polypropylene/polyethylene glycol (PP/PEG) were successfully prepared by green and efficient melt differential electrospinning (MDES) process. The effects of fibers diameter, samples thickness and cavity depth on sound absorption performance were systematically analyzed by impedance tubes method. The samples have excellent sound-absorbing performance especially in low and medium frequencies (
ISSN:0003-682X
1872-910X
DOI:10.1016/j.apacoust.2022.109056