Water vapor sorption behavior of bamboo pertaining to its hierarchical structure

Abstract Bamboo is an anisotropic, hierarchical, and hygroscopic material. Moisture transport in bamboo is one of the most fundamental properties affecting almost all other physical and mechanical properties of the material. This study investigated the water vapor sorption behaviors of bamboo at var...

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Autores principales:	Qi Chen, Changhua Fang, Ge Wang, Xinxin Ma, Junji Luo, Meiling Chen, Chunping Dai, Benhua Fei
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/058e0fadc29945ccb84b9611d631dae8
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spelling	oai:doaj.org-article:058e0fadc29945ccb84b9611d631dae82021-12-02T16:04:31ZWater vapor sorption behavior of bamboo pertaining to its hierarchical structure10.1038/s41598-021-92103-42045-2322https://doaj.org/article/058e0fadc29945ccb84b9611d631dae82021-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-92103-4https://doaj.org/toc/2045-2322Abstract Bamboo is an anisotropic, hierarchical, and hygroscopic material. Moisture transport in bamboo is one of the most fundamental properties affecting almost all other physical and mechanical properties of the material. This study investigated the water vapor sorption behaviors of bamboo at various structural levels: cell walls, cells (with pits) and bamboo blocks. The specimens with two sorption directions, longitudinal (L) and transverse (T), were measured by saturated salt solution method and dynamic vapor sorption. The parallel exponential kinetics model was used to analyze the sorption kinetics. The results showed that at the cell wall level, the sorption rate and equilibrium moisture content (EMC) of cell wall in the L specimens were larger than those in the T specimens. The differences were probably caused by the looser cell wall layers in the L specimens. At the cellular scale, pits in the cell wall resulted in an enhanced sorption rate and EMC of the T specimens compared with the L specimens where the pits in the parenchyma cells were only distributed in the lateral walls but not in end walls. At the macro scale, the sorption rate and moisture content of bamboo blocks were largely controlled by the vessel cells. As a hierarchically-structured plant, bamboo performs the biological function of moisture transport at all these scales. This work helps improve the understanding of water transport behavior in bamboo, which may lead to better bamboo drying and impregnation processes.Qi ChenChanghua FangGe WangXinxin MaJunji LuoMeiling ChenChunping DaiBenhua FeiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Qi Chen Changhua Fang Ge Wang Xinxin Ma Junji Luo Meiling Chen Chunping Dai Benhua Fei Water vapor sorption behavior of bamboo pertaining to its hierarchical structure
description	Abstract Bamboo is an anisotropic, hierarchical, and hygroscopic material. Moisture transport in bamboo is one of the most fundamental properties affecting almost all other physical and mechanical properties of the material. This study investigated the water vapor sorption behaviors of bamboo at various structural levels: cell walls, cells (with pits) and bamboo blocks. The specimens with two sorption directions, longitudinal (L) and transverse (T), were measured by saturated salt solution method and dynamic vapor sorption. The parallel exponential kinetics model was used to analyze the sorption kinetics. The results showed that at the cell wall level, the sorption rate and equilibrium moisture content (EMC) of cell wall in the L specimens were larger than those in the T specimens. The differences were probably caused by the looser cell wall layers in the L specimens. At the cellular scale, pits in the cell wall resulted in an enhanced sorption rate and EMC of the T specimens compared with the L specimens where the pits in the parenchyma cells were only distributed in the lateral walls but not in end walls. At the macro scale, the sorption rate and moisture content of bamboo blocks were largely controlled by the vessel cells. As a hierarchically-structured plant, bamboo performs the biological function of moisture transport at all these scales. This work helps improve the understanding of water transport behavior in bamboo, which may lead to better bamboo drying and impregnation processes.
format	article
author	Qi Chen Changhua Fang Ge Wang Xinxin Ma Junji Luo Meiling Chen Chunping Dai Benhua Fei
author_facet	Qi Chen Changhua Fang Ge Wang Xinxin Ma Junji Luo Meiling Chen Chunping Dai Benhua Fei
author_sort	Qi Chen
title	Water vapor sorption behavior of bamboo pertaining to its hierarchical structure
title_short	Water vapor sorption behavior of bamboo pertaining to its hierarchical structure
title_full	Water vapor sorption behavior of bamboo pertaining to its hierarchical structure
title_fullStr	Water vapor sorption behavior of bamboo pertaining to its hierarchical structure
title_full_unstemmed	Water vapor sorption behavior of bamboo pertaining to its hierarchical structure
title_sort	water vapor sorption behavior of bamboo pertaining to its hierarchical structure
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/058e0fadc29945ccb84b9611d631dae8
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Water vapor sorption behavior of bamboo pertaining to its hierarchical structure

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