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.

中文翻译：

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基于KGM的气凝胶的吸声特性

这项研究提出了作为吸声材料的生物质气凝胶的制备和性能表征。选择生物质通过冷冻干燥法制备气凝胶。结果表明，四种成分可能会对气凝胶孔结构产生不同的影响，因此优化了气凝胶配方，以实现最佳的吸声效果。在实验范围内，优化配方的生物质气凝胶的平均声效为0.352，密度为0.047 g / cm ³，孔隙率为94.46±0.04％。它显示出比传统吸音棉更好的吸音性能。这些结果证明了用于建筑应用的生物质气凝胶的高吸声潜力。