Sound absorption properties of a sunflower composite made from crushed stem particles and from chitosan bio-binder
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- 作者：Narimane Mati-Baouchea ; Hé ; lè ; ne de Baynasta ; Philippe Michauda ; Thomas Dupontb ; Philippe Leclaireb ; Philippe.Leclaire@u-bourgogne.fr" class="auth_mail" title="E-mail the corresponding author
- 关键词：Chitosan ; Sunflower ; Bio-based composite ; Acoustical properties ; Porosities
- 刊名：Applied Acoustics
- 出版年：2016
- 出版时间：October 2016
- 年：2016
- 卷：111
- 期：Complete
- 页码：179-187
- 全文大小：1885 K
文摘
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A sunflower stem particles/chitosan 100% bio-based material was built.
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The sound absorption coefficient and transmission loss were measured.
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The acoustic properties were also studied theoretically.
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Kinematic and dead-end porosity were measured.
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Dead-end pores and clusters appear as peculiarities of the studied material.