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首页> 外文会议>International Conference on Engineering Tribology and Applied Technology >Acoustic Benefits of Ecofriendly Spent Tea Leaves Filled Porous Material
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Acoustic Benefits of Ecofriendly Spent Tea Leaves Filled Porous Material

机译：Ecofriendly Chent Tea的声学益处填充多孔材料

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摘要

This paper demonstrates the feasibility of spent tea leaf (STL) fiber as an eco-friendly sound absorbing material. STL fiber is a by-product which was extracted from tea plant. STL fibers are rich in polyphenols (tannins) which cause high resistance to fungal and termites, and high resistance to fire. In addition, STL are hollow and cellular in nature and thus perform well as acoustic and thermal insulators. Three different grades of STL were studied and the acoustic properties were analyzed in terms of sound absorption coefficient and transmission loss. Experimental measurements of sound absorption coefficient in impedance tube were conducted. It was found that finest STL fiber grade exhibits better acoustic performance among others. Furthermore, the effect of latex binder on the acoustic property of STL fiber was also analyzed. Results suggest that the types of binder such as polyurethane and latex influenced the acoustic performance of STL fiber.
机译：本文展示了花茶叶（STL）纤维作为环保吸声材料的可行性。 STL纤维是一种从茶厂提取的副产物。 STL纤维富含多酚（单宁），其对真菌和白蚁具有高抗性，以及高耐火性。 另外，STL是空心的和细胞的性质中，因此表现出很好的声学和热绝缘体。 研究了三种不同等级的STL，并且在吸音系数和传输损失方面分析了声学性质。 进行阻抗管中吸声系数的实验测量。 发现最好的STL纤维等级在其他方面具有更好的声学性能。 此外，还分析了胶乳粘合剂对STL纤维声学性质的影响。 结果表明，聚氨酯和胶乳等粘合剂的类型影响了STL纤维的声学性能。

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