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Updated: Dec 8, 2025
Towards Biomimicking Wood: Fabricated Free-standing Films of Nanocellulose, Lignin, and a Synthetic Polycation
Published on: June 17, 2014
Transparent, water-stable, cellulose nanofiber-based packaging film with a low oxygen permeability
Joong-Kwon Kim1, Byeongwook Choi1, Jungho Jin1
1School of Materials Science and Engineering, University of Ulsan, Ulsan, 44776, Republic of Korea.
Abstract:
Herein, we report on a transparent, water-stable, high oxygen barrier packaging film made from a combination of cellulose nanofiber (CNF) and a fluoropolymer (FP) coating. Nanofibrillation of the hardwood kraft pulp was carried out using succinic anhydride pretreatment and aqueous counter collision (ACC) technique to obtain ultrafine (5-7 nm) succinylated cellulose nanofibers (SCNF), which was readily fabricated into a thin coating (on PET film) as well as a self-standing film. Introducing the FP topcoat on SCNF enabled a synergistic enhancement of both oxygen barrier performance and stability against water-swelling.
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