Sound absorption characteristics of KGM-based aerogel | Zendy

Yixin Wang | Zendy; Xiang Fei | Zendy; Wei Wang | Zendy; Weiling Wang | Zendy; Yuehong Su | Zendy; Fatang Jiang | Zendy; Sheng Chen | Zendy; Saffa Riffat | Zendy

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Sound absorption characteristics of KGM-based aerogel

Author(s) -

Yixin Wang,

Xiang Fei,

Wei Wang,

Weiling Wang,

Yuehong Su,

Fatang Jiang,

Sheng Chen,

Saffa Riffat

Publication year - 2020

Publication title -

international journal of low-carbon technologies

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.458

H-Index - 26

eISSN - 1748-1325

pISSN - 1748-1317

DOI - 10.1093/ijlct/ctaa005

Subject(s) - aerogel , materials science , absorption (acoustics) , porosity , biomass (ecology) , sound (geography) , noise reduction coefficient , composite material , acoustics , ecology , biology , physics

This study presents the preparation and property characterization of biomass aerogels as sound absorption materials. Biomasses were chosen to prepare aerogels through the freeze-drying method. Results indicated that four components may have different effects on the aerogel pore structure, and the aerogel formula was thus optimized to reach the best sound absorption. Within the experimental range, biomass aerogel with the optimized formula had an average sound efficiency 0.352, density 0.047 g/cm3 and porosity 94.46 ± 0.04%. It shows better sound absorption performance than traditional sound absorption cotton. These results demonstrate the high sound absorption potential of biomass aerogels for building applications.

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