Sound absorption characteristics of KGM-based aerogel. (7th April 2020)

• Record Type: Journal Article
• Authors: Wang, Yixin; Xiang, Fei; Wang, Wei; Wang, Weiling; Su, Yuehong; Jiang, Fatang; Chen, Sheng; Riffat, Saffa
• Is Part Of: International journal of low carbon technologies. Volume 15:Number 3(2020:Sep.)
• Page Start: 450
• Page End: 457
• Publication Date: 2020-04-07
• Subjects: biomass aerogels -- natural -- sound absorption -- building applications; Climatic changes -- Environmental aspects -- Periodicals; Energy industries -- Technological innovations -- Periodicals; Sustainable architecture -- Periodicals; Sustainable buildings -- Periodicals; 621.042
• DOI: 10.1093/ijlct/ctaa005
• Languages: English
• ISSNs: 1748-1317

Abstract

Abstract: 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/cm 3 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.