| abstract |
The invention discloses a cellulose-based porous heat insulating material and a preparation method thereof. The cellulose-based thermal insulation material has a closed-cell structure to ensure low thermal conductivity of the material, and can be prepared by an emulsion template method, including the following steps: adding an organic solution containing a cross-linking agent or an initiator into an aqueous cellulose dispersion, mixing Then, an oil-in-water emulsion is obtained, and a cellulose-based thermal insulating material with a closed-cell structure is obtained through cross-linking and drying. The material has low thermal conductivity, high hydrophobicity, and good mechanical properties, and has broad application prospects in the fields of heat preservation, heat insulation, and cold preservation. |