Bioplastics are considered a viable alternative and an option to reduce the high levels of pollution associated with synthetic plastics. However, some inherent physical failures need to be surpassed. One of the strategies adopted to improve the flaws presented by biopolymers is their reinforcement with nanoparticles. Incorporating crystalline nanocellulose (CNCs) as reinforcement in bioplastics perfectly fits in the scope of biodegradability and lignocellulosic residues valorization. Thus, the aim of this work was to achieve a biodegradable bionanocomposite made from chitosan, a bio-based polymeric matrix, reinforced with CNC extracted from giant reed (Arundo donax L.) lignocellulosic residues. The nanocellulose from giant reed (2.5% and 5% w/w in chitosan) was added and an exfoliation process was performed. Biofilms with commercial nanocellulose (2.5% and 5% w/w in chitosan) and films without nanocellulose were also produced for comparison. The novel chitosan/nanocellulose bionanocomposites were produced with success by casting method and characterized in terms of their physical properties. The results indicate that the incorporation of nanocrystalline cellulose improved the mechanical properties as intended. Additionally, bionanocomposites are slightly more saturated and showed greater ultraviolet light block than the pristine chitosan films. Hence, bionanocomposites showed greater potential than pristine chitosan biofilm.
|Number of pages||7|
|Journal||European Biomass Conference and Exhibition Proceedings|
|Publication status||Published - 2020|
|Event||28th European Biomass Conference and Exhibition, e-EUBCE 2020 - Virtual, Online|
Duration: 6 Jul 2020 → 9 Jul 2020
- Biomass feedstock
- Lignocellulosic sources