Mycofabrication of Mycelium-Based Leather from Brown-Rot Fungi - Raman et al. (2022)
"This study investigated the physicochemical and mechanical properties of mycelium-based leather (MBL) samples, including the hygroscopic nature, thermal stability, cell wall chemistry, density, micromorphology, tensile strength, elongation rate, and Young’s modulus."
Excellent article full of technical detail; required reading for anyone seriously interested in mycofabrication.
i'm not sure i understand your question.
the mycelium is not a fossil fuel plastic composite.
the researchers grew mycelia of several species in liquid culture and on a mix of sawdust and rice bran (agricultural waste products). they then treated the mycelial mats with various substances (one being polyethylene glycol, a petroleum-derived compound) to test the effect on various physicochemical and mechanical properties.
@glyph ...this is just another regular fossil fuel plastic composite?