纤维素基发泡材料的研究进展OA北大核心

Foamed materials are a class of artificial materials with 3D network framework,with small relative density,large specific surface area and complex pore structure.As the most abundant natural polymer material on earth,cellulose has become an ideal material for the preparation of cellulose-based foaming material with its advantages of easy structural modification,green,renewable and biodegradable,and has attracted wide attention.In order to have a more comprehensive understanding of the research progress of cellulose-based foaming materials,this paper first analyzes the selection of raw materials,the control of foaming process and the selection of drying mode,and then discusses the application status and prospect of cellulose-based foaming materials in the fields of buffer,adsorption,flame retardant,sound absorption,electromagnetic shielding and so on,finally summarizes and looks forward to the preparation and application of cellulose foam material facing opportunities and challenges.