Methods for Preparing Self-Structured Cellulose Aerogel Materials from Hydrogel and Their Applications

Abstract

Aspects of the present disclosure may include methods of preparing a cellulose-based aerogel including: preparing an alkali cellulose; reacting the alkali cellulose with an alkylating agent to form alkylated cellulose; mixing the alkylated cellulose with fibrillated cellulose comprising carboxyl groups in an aqueous solution to form a foam; and drying the foam to form a cellulose-based aerogel. Embodiments of the present disclosure may include a cellulose-based closed-foam aerogel, the closed-cell aerogel including: an alkylated cellulose; a fibrillated carboxylated cellulose; wherein the alkylated cellulose and the fibrillated carboxylated cellulose are mixed to foam, wherein the foam is capable of being dried under ambient conditions to form the closed-cell aerogel.

Dependencies are inferred from the claim text.