Bioinspired Dry-Steam Superinsulation Straw Foam.

ABSTRACT: Cellulosic materials offer sustainable advantages for building energy conservation. However, their development has been hindered by reduced thermal performance, often caused by structural collapse during the transition from solution to solid. Inspired by natural goose down, a bio-based, lightweight insulation foam derived from agricultural waste straw is presented. Through in situ synthesis, bio-silica fibers with branched structures capable of supporting hollow silica microspheres are fabricated. After steam-mediated processing, the resulting foam exhibit low density (95 mg cm^{- 3}), high porosity (95.5%), low thermal conductivity (0.03 ± 0.003 W mK^-1), and a cyclic compressive strength of 90 kPa at 50% strain. Owing to the synergistic microstructure formed

SUBMITTER: Meng T 

PROVIDER: S-EPMC12306404 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature