However, the significant shrinkage in the supercritical drying process causes the relatively high thermal conductivity and low mechanical property of cellulose and its derivatives aerogels.  Considering the pearl-necklace-like skeleton network of silica aerogels, which can improve thermal insulation property and mechanical property.  CDAAs obtained have the low density of 0.09 g cm-3, the nanopore size in the range of 10-40 nm, the low thermal conductivity of 0.024 W m-1 K-1 at ambient conditions, and the excellent mechanical properties (0.18 MPa at 3% strain, 0.38 MPa at 5% strain). 
THERM