Seaweed-Derived Alginate-Cellulose Nanofiber Aerogel for Insulation Applications.

ABSTRACT: The next generation of green insulation materials is being developed to provide safer and more sustainable alternatives to conventional materials. Bio-based cellulose nanofiber (CNF) aerogels offer excellent thermal insulation properties; however, their high flammability restricts their application. In this study, the design concept for the development of a multifunctional and non-toxic insulation material is inspired by the natural composition of seaweed, comprising both alginate and cellulose. The approach includes three steps: first, CNFs were separated from alginate-rich seaweed to obtain a resource-efficient, fully bio-based, and inherently flame-retardant material; second, ice-templating, followed by freeze-drying, was employed to form an anisotropic aerogel for effective insulation;

SUBMITTER: Berglund L 

PROVIDER: S-EPMC8323098 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature