Thermal Degradation and Fire Properties of Fungal Mycelium and Mycelium - Biomass Composite Materials

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

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Author(s)

  • Mitchell Jones
  • Tanmay Bhat
  • Everson Kandare
  • Ananya Thomas
  • Paul Joseph
  • Chaitali Dekiwadia
  • Sabu John
  • Jun Ma
  • Chun-Hui Wang

Detail(s)

Original languageEnglish
Article number17583
Journal / PublicationScientific Reports
Volume8
Issue number1
Publication statusPublished - 4 Dec 2018

Link(s)

Abstract

Mycelium and mycelium-biomass composites are emerging as new sustainable materials with useful flame-retardant potentials. Here we report a detailed characterisation of the thermal degradation and fire properties of fungal mycelium and mycelium-biomass composites. Measurements and analyses are carried out on key parameters such as decomposition temperatures, residual char, and gases evolved during pyrolysis. Pyrolysis flow combustion calorimetry (PCFC) evaluations reveal that the corresponding combustion propensity of mycelium is significantly lower compared to poly(methyl methacrylate) (PMMA) and polylactic acid (PLA), indicating that they are noticeably less prone to ignition and flaming combustion, and therefore safer to use. The hyphal diameters of mycelium decrease following pyrolysis. Cone calorimetry testing results show that the presence of mycelium has a positive influence on the fire reaction properties of wheat grains. This improvement is attributable to the relatively higher charring tendency of mycelium compared to wheat grain, which reduces the heat release rate (HRR) by acting as a thermal insulator and by limiting the supply of combustible gases to the flame front. The mycelium growth time has been found to yield no significant improvements in the fire properties of mycelium-wheat grain composites.

Research Area(s)

Citation Format(s)

Thermal Degradation and Fire Properties of Fungal Mycelium and Mycelium - Biomass Composite Materials. / Jones, Mitchell; Bhat, Tanmay; Kandare, Everson; Thomas, Ananya; Joseph, Paul; Dekiwadia, Chaitali; Yuen, Richard; John, Sabu; Ma, Jun; Wang, Chun-Hui.

In: Scientific Reports, Vol. 8, No. 1, 17583, 04.12.2018.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

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