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Effect of Saturated Steam Heat Treatment on Physical and Chemical Properties of Bamboo

The aim of this study was to investigate the effects of the heat treatment time and initial moisture content of bamboo on the corresponding chemical composition, crystallinity, and mechanical properties after saturated steam heat treatment at 180 °C. The mechanism of saturated steam heat treatment o...

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Detalles Bibliográficos
Autores principales: Wang, Qiuyi, Wu, Xinwu, Yuan, Chenglong, Lou, Zhichao, Li, Yanjun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7221802/
https://www.ncbi.nlm.nih.gov/pubmed/32344634
http://dx.doi.org/10.3390/molecules25081999
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author Wang, Qiuyi
Wu, Xinwu
Yuan, Chenglong
Lou, Zhichao
Li, Yanjun
author_facet Wang, Qiuyi
Wu, Xinwu
Yuan, Chenglong
Lou, Zhichao
Li, Yanjun
author_sort Wang, Qiuyi
collection PubMed
description The aim of this study was to investigate the effects of the heat treatment time and initial moisture content of bamboo on the corresponding chemical composition, crystallinity, and mechanical properties after saturated steam heat treatment at 180 °C. The mechanism of saturated steam heat treatment of bamboo was revealed on the micro-level, providing a theoretical basis for the regulation of bamboo properties and the optimization of heat treatment process parameters. XRD patterns of the treated bamboo slices were basically the same. With the increase in the initial moisture content of bamboo, the crystallinity of bamboo increased first and then decreased after treatment. Due to the saturated steam heat treatment, the content of cellulose and lignin in bamboo slices increased while the content of hemicellulose decreased, but the content of cellulose in bamboo with a 40% initial moisture content increased first and then decreased. The shear strength of treated bamboo changed little within 10 min after saturated steam heat treatment, and then decreased rapidly. During the first 20 min with saturated steam heat treatment, the compressive strength, flexural strength, and flexural modulus of elasticity of the treated bamboo increased, and then decreased.
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spelling pubmed-72218022020-05-21 Effect of Saturated Steam Heat Treatment on Physical and Chemical Properties of Bamboo Wang, Qiuyi Wu, Xinwu Yuan, Chenglong Lou, Zhichao Li, Yanjun Molecules Article The aim of this study was to investigate the effects of the heat treatment time and initial moisture content of bamboo on the corresponding chemical composition, crystallinity, and mechanical properties after saturated steam heat treatment at 180 °C. The mechanism of saturated steam heat treatment of bamboo was revealed on the micro-level, providing a theoretical basis for the regulation of bamboo properties and the optimization of heat treatment process parameters. XRD patterns of the treated bamboo slices were basically the same. With the increase in the initial moisture content of bamboo, the crystallinity of bamboo increased first and then decreased after treatment. Due to the saturated steam heat treatment, the content of cellulose and lignin in bamboo slices increased while the content of hemicellulose decreased, but the content of cellulose in bamboo with a 40% initial moisture content increased first and then decreased. The shear strength of treated bamboo changed little within 10 min after saturated steam heat treatment, and then decreased rapidly. During the first 20 min with saturated steam heat treatment, the compressive strength, flexural strength, and flexural modulus of elasticity of the treated bamboo increased, and then decreased. MDPI 2020-04-24 /pmc/articles/PMC7221802/ /pubmed/32344634 http://dx.doi.org/10.3390/molecules25081999 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Wang, Qiuyi
Wu, Xinwu
Yuan, Chenglong
Lou, Zhichao
Li, Yanjun
Effect of Saturated Steam Heat Treatment on Physical and Chemical Properties of Bamboo
title Effect of Saturated Steam Heat Treatment on Physical and Chemical Properties of Bamboo
title_full Effect of Saturated Steam Heat Treatment on Physical and Chemical Properties of Bamboo
title_fullStr Effect of Saturated Steam Heat Treatment on Physical and Chemical Properties of Bamboo
title_full_unstemmed Effect of Saturated Steam Heat Treatment on Physical and Chemical Properties of Bamboo
title_short Effect of Saturated Steam Heat Treatment on Physical and Chemical Properties of Bamboo
title_sort effect of saturated steam heat treatment on physical and chemical properties of bamboo
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7221802/
https://www.ncbi.nlm.nih.gov/pubmed/32344634
http://dx.doi.org/10.3390/molecules25081999
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