Renewable cellulosic nanocomposites for food packaging to avoid fossil fuel plastic pollution: a review
| Autor: | Umair Qasim, Ahmed I. Osman, Muzaffar Ali, David Rooney, Charlie Farrell, Mohammed Al-Abri, Farrukh Jamil, Dai-Viet N. Vo, Ala’a H. Al-Muhtaseb |
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| Rok vydání: | 2020 |
| Předmět: |
Filler (packaging)
Cellulosic nanocomposites Materials science Cellulose nanoparticles Lignocellulosic biomass 02 engineering and technology 010402 general chemistry 01 natural sciences Sustainable packaging Food packaging chemistry.chemical_compound Oxygen transmission rate Biopolymers SDG 13 - Climate Action Environmental Chemistry SDG 7 - Affordable and Clean Energy Cellulose Nanocomposite Biodegradation 021001 nanoscience & nanotechnology 0104 chemical sciences chemistry Chemical engineering Cellulosic ethanol 0210 nano-technology |
| Zdroj: | Qasim, U, Osman Ahmed, A O, Al-Muhtaseb, A H, Farrell, C, Al-Abri, M, Ali, M, Vo, D-V N, Jamil, F & Rooney, D 2020, ' Renewable cellulosic nanocomposites for food packaging to avoid fossil fuel plastic pollution: a review ', Environmental Chemistry Letters . https://doi.org/10.1007/s10311-020-01090-x |
| ISSN: | 1610-3661 1610-3653 |
| DOI: | 10.1007/s10311-020-01090-x |
| Popis: | The extensive use of petroleum-based synthetic and non-biodegradable materials for packaging applications has caused severe environmental damage. The rising demand for sustainable packaging materials has encouraged scientists to explore abundant unconventional materials. For instance, cellulose, extracted from lignocellulosic biomass, has gained attention owing to its ecological and biodegradable nature. This article reviews the extraction of cellulose nanoparticles from conventional and non-conventional lignocellulosic biomass, and the preparation of cellulosic nanocomposites for food packaging. Cellulosic nanocomposites exhibit exceptional mechanical, biodegradation, optical and barrier properties, which are attributed to the nanoscale structure and the high specific surface area, of 533 m2 g−1, of cellulose. The mechanical properties of composites improve with the content of cellulose nanoparticles, yet an excessive amount induces agglomeration and, in turn, poor mechanical properties. Addition of cellulose nanoparticles increases tensile properties by about 42%. Barrier properties of the composites are reinforced by cellulose nanoparticles; for instance, the water vapor permeability decreased by 28% in the presence of 5 wt% cellulose nanoparticles. Moreover, 1 wt% addition of filler decreased the oxygen transmission rate by 21%. We also discuss the eco-design process, designing principles and challenges. |
| Databáze: | OpenAIRE |
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