Environmentally Friendly Melt-Processed Chitosan/Starch Composites Modified with PVA and Lignin
| Autor: | Weronika Janik, Anna Pietruszka, Ewa Sabura, Gabriela Dudek, Anna Wojtala |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Vinyl alcohol
Materials science Polymers and Plastics Scanning electron microscope Starch Organic chemistry lignin macromolecular substances complex mixtures Article Chitosan chemistry.chemical_compound QD241-441 Ultimate tensile strength Lignin Composite material thermomechanical processing integumentary system starch technology industry and agriculture food and beverages General Chemistry Microstructure Environmentally friendly chemistry PVA chitosan |
| Zdroj: | Polymers Volume 13 Issue 16 Polymers, Vol 13, Iss 2685, p 2685 (2021) |
| ISSN: | 2073-4360 |
| Popis: | Chitosan/starch-based composites were prepared by thermomechanical processing as an alternative to the traditional solution method, with the aim of fabricating environmentally friendly materials on a larger scale. Different contents and types of lignin and poly(vinyl alcohol), PVA were incorporated into chitosan/starch compositions to improve their mechanical properties. It was demonstrated that the presence of both lignin and PVA increases the values of tensile strength and elongation at break of the composites. Moreover, it was observed that by the selection of a type of lignin and PVA, it was possible to tailor the internal microstructure of the samples. As observed in scanning electron microscope (SEM) micrographs, the introduction of lignin and PVA resulted in the formation of a smooth surface and homogeneous samples. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|