The research progress of biomass-based foam materials was reviewed,and the main materials and types(such as cellulose,lig-nin,starch,and chitosan),preparation methods,and method of improving properties(e.g.,thermal and mechanical properties,and envi-ronmental stability)of biomass-based foam were expounded.The application status of biomass-based foam in building insulation,packaging materials,and other potential fields were introduced.
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