Valorisation of Tannery Waste and Animal By-Product for Acoustics Applications

IF 0.6 4区 工程技术 Q4 CHEMISTRY, APPLIED
Tesfay Gebryergs, C. Sivaranjani, N. Fathima
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引用次数: 0

Abstract

Disposal of chromium-containing solid wastes generated from the leather industry poses a major threat to tanners worldwide. Herein, we propose a strategy to utilize chrome shaving waste for sound absorption application by blending it with natural fiber, wool. The composites were prepared at various ratios with different thickness by compression molding method and subjected to characterizations like scanning electron microscope, porosity measurements, and tensile strength analysis. The sound absorption behavior of the composites was evaluated using the two-microphone impedance tube method. The results indicate that the composites with higher thickness show better sound absorption at higher frequencies when compared to the natural wool and composites with lesser thicknesses. Thus, this material can be used as a sound-absorbing material thereby paving the alternative use of leather waste utilization.
制革废料和动物副产品声学应用的价值计算
皮革工业产生的含铬固体废物的处理对全世界的制革商构成了重大威胁。在此,我们提出了一种策略,利用铬剃须废料的吸声应用与天然纤维,羊毛混纺。采用压缩成型方法制备了不同厚度、不同比例的复合材料,并对其进行了扫描电镜、孔隙率测量和拉伸强度分析等表征。采用双传声器阻抗管法对复合材料的吸声性能进行了评价。结果表明,与天然羊毛和厚度较小的复合材料相比,厚度较大的复合材料在高频处具有更好的吸声效果。因此,这种材料可以作为吸声材料,从而铺装皮革废料的替代利用。
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来源期刊
Journal of The American Leather Chemists Association
Journal of The American Leather Chemists Association 工程技术-材料科学:纺织
CiteScore
1.30
自引率
33.30%
发文量
29
审稿时长
3 months
期刊介绍: The Journal of the American Leather Chemists Association publishes manuscripts on all aspects of leather science, engineering, technology, and economics, and will consider related subjects that address concerns of the industry. Examples: hide/skin quality or utilization, leather production methods/equipment, tanning materials/leather chemicals, new and improved leathers, collagen studies, leather by-products, impacts of changes in leather products industries, process efficiency, sustainability, regulatory, safety, environmental, tannery waste management and industry economics.
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