Strong and optically transparent biocomposites reinforced with cellulose nanofibers isolated from peanut shell |
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| Affiliation: | 1. College of Material Science and Engineering, Nanjing Forestry University, Nanjing 210037, Jiangsu, People’s Republic of China;2. College of Lighttextile Engineering and Art, Anhui Agricultral University, Hefei 230031, Anhui, People’s Republic of China;1. Centre for Human and Organizational Resources Development, Council of Scientific and Industrial Research-Central Leather Research Institute, Adyar, India;2. Centre for Academic and Research Excellence, Council of Scientific and Industrial Research-Central Leather Research Institute, Adyar, Chennai, India;3. Department of Chemical Engineering, Hyderabad Campus, Birla Institute of Technology & Science, Pilani, Hyderabad Campus, India;4. Department of Biological Sciences, Pilani Campus, Birla Institute of Technology & Science, Pilani, Rajasthan, India;5. Leather Processing Division, Council of Scientific and Industrial Research-Central Leather Research Institute, Adyar, Chennai, India;1. Bioresource Processing Research Institute of Australia (BioPRIA), Department of Chemical Engineering, Monash University, VIC, 3800, Australia;2. Pulp and Paper Centre, The University of British Columbia, 321-2385 East Mall, Vancouver, BC, V6T 1Z4, Canada;1. Department of Civil Engineering, Kahramanmara? Sutcu Imam University, Department of Civil Engineering, Kahramanmara? 46100, Turkey;2. Department of Civil Engineering, Toros University, Mersin 33140, Turkey;1. State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute at Sichuan University, Chengdu 610065, China;2. School of Chemical and Biomolecular Engineering and IPST at GT, Georgia Institute of Technology, Atlanta 30332-0620, GA USA;1. Schoolof Environment and Energy, South China University of Technology, Guangzhou 510006, PR China;2. The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou 510006, PR China;3. National Technology Center, Guangxi Bossco Environmental Protection Technology Co Ltd, Nanning 530004, PR China |
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| Abstract: | Cellulose nanofibers–reinforced PVA biocomposites were prepared from peanut shell by chemical–mechanical treatments and impregnation method. The composite films were optically transparent and flexible, showed high mechanical and thermal properties. FE-SEM images showed that the isolated fibrous fragments had highly uniform diameters in the range of 15–50 nm and formed fine network structure, which is a guarantee of the transparency of biocomposites. Compared to that of pure PVA resin, the modulus and tensile strength of prepared nanocomposites increased from 0.6 GPa to 6.0 GPa and from 31 MPa to 125 MPa respectively with the fiber content as high as 80 wt%, while the light transmission of the composite only decreased 7% at a 600 nm wavelength. Furthermore, the composites exhibited excellent thermal properties with CTE as low as 19.1 ppm/K. These favorable properties indicated the high reinforcing efficiency of the cellulose nanofibers isolated from peanut shell in PVA composites. |
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| Keywords: | A Nano-structures B Optical properties D Mechanical testing D Thermal analysis |
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