Mechanical properties of dense mycelium-bound composites under accelerated tropical weathering conditions

Abstract Mycelium, as the root of fungi, is composed of filamentous strands of fine hyphae that bind discrete substrate particles into a block material. With advanced processing, dense mycelium-bound composites (DMCs) resembling commercial particleboards can be formed. However, their mechanical prop...

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Autores principales:	Xin Ying Chan, Nazanin Saeidi, Alireza Javadian, Dirk E. Hebel, Manoj Gupta
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b1cb07ec5b72473b872389c8cf4df3c7
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id	oai:doaj.org-article:b1cb07ec5b72473b872389c8cf4df3c7
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spelling	oai:doaj.org-article:b1cb07ec5b72473b872389c8cf4df3c72021-11-14T12:18:38ZMechanical properties of dense mycelium-bound composites under accelerated tropical weathering conditions10.1038/s41598-021-01598-42045-2322https://doaj.org/article/b1cb07ec5b72473b872389c8cf4df3c72021-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-01598-4https://doaj.org/toc/2045-2322Abstract Mycelium, as the root of fungi, is composed of filamentous strands of fine hyphae that bind discrete substrate particles into a block material. With advanced processing, dense mycelium-bound composites (DMCs) resembling commercial particleboards can be formed. However, their mechanical properties and performance under the working conditions of particleboards are unknown. Here, we show how weathering conditions affect the DMC stress and elastic modulus. DMC was made using Ganoderma lucidum mycelium grown on a substrate of sawdust and empty fruit bunch. The DMC was then subjected to weathering under tropical conditions over 35 days and tested under flexural, tensile, and compressive loading with reference to international standards. After exposure to specified weathering conditions, the maximum stress in flexure, tension, and compression decreased substantially. The addition of a protective coating improved the resistance of DMC to weathering conditions; however, the difference between coated and uncoated samples was only found to be statistically significant in tensile strength.Xin Ying ChanNazanin SaeidiAlireza JavadianDirk E. HebelManoj GuptaNature 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 Xin Ying Chan Nazanin Saeidi Alireza Javadian Dirk E. Hebel Manoj Gupta Mechanical properties of dense mycelium-bound composites under accelerated tropical weathering conditions
description	Abstract Mycelium, as the root of fungi, is composed of filamentous strands of fine hyphae that bind discrete substrate particles into a block material. With advanced processing, dense mycelium-bound composites (DMCs) resembling commercial particleboards can be formed. However, their mechanical properties and performance under the working conditions of particleboards are unknown. Here, we show how weathering conditions affect the DMC stress and elastic modulus. DMC was made using Ganoderma lucidum mycelium grown on a substrate of sawdust and empty fruit bunch. The DMC was then subjected to weathering under tropical conditions over 35 days and tested under flexural, tensile, and compressive loading with reference to international standards. After exposure to specified weathering conditions, the maximum stress in flexure, tension, and compression decreased substantially. The addition of a protective coating improved the resistance of DMC to weathering conditions; however, the difference between coated and uncoated samples was only found to be statistically significant in tensile strength.
format	article
author	Xin Ying Chan Nazanin Saeidi Alireza Javadian Dirk E. Hebel Manoj Gupta
author_facet	Xin Ying Chan Nazanin Saeidi Alireza Javadian Dirk E. Hebel Manoj Gupta
author_sort	Xin Ying Chan
title	Mechanical properties of dense mycelium-bound composites under accelerated tropical weathering conditions
title_short	Mechanical properties of dense mycelium-bound composites under accelerated tropical weathering conditions
title_full	Mechanical properties of dense mycelium-bound composites under accelerated tropical weathering conditions
title_fullStr	Mechanical properties of dense mycelium-bound composites under accelerated tropical weathering conditions
title_full_unstemmed	Mechanical properties of dense mycelium-bound composites under accelerated tropical weathering conditions
title_sort	mechanical properties of dense mycelium-bound composites under accelerated tropical weathering conditions
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/b1cb07ec5b72473b872389c8cf4df3c7
work_keys_str_mv	AT xinyingchan mechanicalpropertiesofdensemyceliumboundcompositesunderacceleratedtropicalweatheringconditions AT nazaninsaeidi mechanicalpropertiesofdensemyceliumboundcompositesunderacceleratedtropicalweatheringconditions AT alirezajavadian mechanicalpropertiesofdensemyceliumboundcompositesunderacceleratedtropicalweatheringconditions AT dirkehebel mechanicalpropertiesofdensemyceliumboundcompositesunderacceleratedtropicalweatheringconditions AT manojgupta mechanicalpropertiesofdensemyceliumboundcompositesunderacceleratedtropicalweatheringconditions
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Mechanical properties of dense mycelium-bound composites under accelerated tropical weathering conditions

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