Deacetylation of chitin and chitosan in fungal materials and their composites for crosslinking and tunable properties

摘要

A method for crosslinking fungal crosslinking structures, fungal crosslinking systems, and fungal materials.The crosslinked fungal materials described herein include various combinations of crosslinking agents, crosslinking sites, and crosslinks, each forming a unique structure.The cross-linked fungal material comprises at least one cross-linking compound bound to the binding site.The fungal crosslinking system comprises a preparation unit, an impregnation unit, a crosslinking unit, and a rinse unit.The preparation unit can partially deacetylate chitin within the fungal material and chitin nanowhiskers.The impregnated unit impregnates chitin nanowhiskers into the fungal material.The cross-linking unit is configured to crosslinked the fungal material and chitin nanowhiskers by genipin to create a composite material.The rinse unit provides a crosslinked composite material by rinsing out unreacted genipine material.The resulting crosslinked composite material is stronger and more flexible than the original fungal material and has improved chemical and mechanical properties.Diagram