Process Development for Flexible Films of Industrial Cellulose Pulp Using Superbase Ionic Liquids
| Autor: | Arménio C. Serra, Rafael C. Rebelo, Francesco De Bon, Jorge F. J. Coelho, Diana C. M. Ribeiro |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Polymers and Plastics Scanning electron microscope superbase ionic liquids Pulp (paper) Superbase Organic chemistry General Chemistry Calorimetry engineering.material mechanical properties Article chemistry.chemical_compound QD241-441 chemistry Chemical engineering industrial pulp Ionic liquid engineering cellulose films Fourier transform infrared spectroscopy Thermal analysis IL quantification Dissolution |
| Zdroj: | Polymers Volume 13 Issue 11 Polymers, Vol 13, Iss 1767, p 1767 (2021) |
| ISSN: | 2073-4360 |
| Popis: | Due to environmental concerns, more attention has been given to the development of bio-based materials for substitution of fossil-based ones. Moreover, paper use is essential in daily routine and several applications of industrial pulp can be developed. In this study, transparent films were produced by industrial cellulose pulp solubilization in tetramethylguanidine based ionic liquids followed by its regeneration. Films were characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), UV/Vis spectroscopy, proton nuclear magnetic resonance (1H-NMR), dynamic scanning calorimetry (DSC), thermal analysis (TG), and X-ray diffraction (XRD). Mechanical tests showed that films have a good elongation property, up to 50%, depending on ionic liquid incorporation. The influence of the conjugated acid and dissolution temperature on mechanical properties were evaluated. These results revealed the potential of this methodology for the preparation of new biobased films. |
| Databáze: | OpenAIRE |
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