Mechanical characteristics of bacterial cellulose-reinforced mycelium composite materials.
Bacterial cellulose
Biocomposite
Hybrid materials
Mycelium materials
Trametes versicolor
White-rot fungi
Journal
Fungal biology and biotechnology
ISSN: 2054-3085
Titre abrégé: Fungal Biol Biotechnol
Pays: England
ID NLM: 101655873
Informations de publication
Date de publication:
04 Dec 2021
04 Dec 2021
Historique:
received:
13
08
2021
accepted:
17
11
2021
entrez:
5
12
2021
pubmed:
6
12
2021
medline:
6
12
2021
Statut:
epublish
Résumé
While mycelium is considered a promising alternative for fossil-based resins in lignocellulosic materials, the mechanical properties of mycelium composite materials remain suboptimal, among other reasons due to the weak internal bonds between the hyphae and the natural fibres. A solution could be provided by the hybridisation of mycelium materials with organic additives. More specifically, bacterial cellulose seems to be a promising additive that could result in reinforcing mycelium composites; however, this strategy is underreported in scientific literature. In this study, we set out to investigate the mechanical properties of mycelium composites, produced with the white-rot fungus Trametes versicolor, and supplemented with bacterial cellulose as an organic additive. A methodological framework is developed for the facile production of bacterial cellulose and subsequent fabrication of mycelium composite particle boards based on a hybrid substrate consisting of bacterial cellulose and hemp in combination with a heat-pressing approach. We found that, upon adding bacterial cellulose, the internal bond of the composite particle boards significantly improved. The addition of bacterial cellulose to mycelium composite materials not only results in a strengthening of internal bonding of mycelium material, but also renders tuneable mechanical properties to the material. As such, this study contributes to the ongoing development of fully biological hybrid materials with performant mechanical characteristics.
Sections du résumé
BACKGROUND
BACKGROUND
While mycelium is considered a promising alternative for fossil-based resins in lignocellulosic materials, the mechanical properties of mycelium composite materials remain suboptimal, among other reasons due to the weak internal bonds between the hyphae and the natural fibres. A solution could be provided by the hybridisation of mycelium materials with organic additives. More specifically, bacterial cellulose seems to be a promising additive that could result in reinforcing mycelium composites; however, this strategy is underreported in scientific literature.
RESULTS
RESULTS
In this study, we set out to investigate the mechanical properties of mycelium composites, produced with the white-rot fungus Trametes versicolor, and supplemented with bacterial cellulose as an organic additive. A methodological framework is developed for the facile production of bacterial cellulose and subsequent fabrication of mycelium composite particle boards based on a hybrid substrate consisting of bacterial cellulose and hemp in combination with a heat-pressing approach. We found that, upon adding bacterial cellulose, the internal bond of the composite particle boards significantly improved.
CONCLUSIONS
CONCLUSIONS
The addition of bacterial cellulose to mycelium composite materials not only results in a strengthening of internal bonding of mycelium material, but also renders tuneable mechanical properties to the material. As such, this study contributes to the ongoing development of fully biological hybrid materials with performant mechanical characteristics.
Identifiants
pubmed: 34863310
doi: 10.1186/s40694-021-00125-4
pii: 10.1186/s40694-021-00125-4
pmc: PMC8645105
doi:
Types de publication
Journal Article
Langues
eng
Pagination
18Subventions
Organisme : Fonds Wetenschappelijk Onderzoek
ID : 1S36417N
Organisme : Fonds Wetenschappelijk Onderzoek
ID : 1SC9220N
Organisme : Fonds Wetenschappelijk Onderzoek
ID : 1SA9721N
Informations de copyright
© 2021. The Author(s).
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