| abstract |
The invention discloses a preparation method of ultra-light cellulose nanocrystal aerogel material. The aqueous dispersion of cellulose nanocrystals is used as the water phase; the water-insoluble organic solvent is used as the oil phase; the oil phase is poured into the water phase at one time, and a high internal phase emulsion is obtained by emulsification; the emulsion is freeze-dried to obtain Porous aerogel materials with adjustable pore structure and extremely low density, the density of which can be as low as 0.5 mg/cm 3 . The method of the invention is simple, easy to operate, green and environmentally friendly, and can obtain ultra-low density cellulose nanocrystal aerogel. |