Antioxidant and UV-Blocking Leather-Inspired Nanocellulose-Based Films with High Wet Strength.

ABSTRACT: The mechanical performance in the wet state needs to be significantly improved and the intrinsic functionalities should be fully utilized to promote the replacement of fossil-based plastics with renewable biobased materials. We demonstrate a leather-inspired approach to produce multifunctional materials with a high wet strength that is based on tannin-induced precipitation of gelatin grafted onto surface-modified cellulose nanofibrils (CNF). The leather-inspired CNF-based films had a wet tensile strength of 33 MPa, a Young's modulus of 310 MPa, and a strain at failure of 22%, making the wet materials stronger than, for example, dry conventional low-density polyethylene and more ductile than paper-based food packaging materials. The tannin-containing films displayed excellent antioxidant an

SUBMITTER: Kriechbaum K 

PROVIDER: S-EPMC7343243 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature