Properties of hydric and biodegradability of cassava starch-based bioplastics reinforced with thermally modified kaolin
| Autor: | Monique Tohoué Tognonvi, Léon Koffi Konan, Namory Meite, Moussa Gomina, Bi Irié Hervé Goure Doubi, Samuel Oyetola |
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| Přispěvatelé: | Université Félix Houphouët-Boigny (UFHB), Université Péléforo Gon Coulibaly (UPGC), Laboratoire de cristallographie et sciences des matériaux (CRISMAT), École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Institut de Chimie du CNRS (INC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche sur les Matériaux Avancés (IRMA), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Rouen Normandie (UNIROUEN), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
inorganic chemicals
Hot Temperature Manihot Polymers and Plastics Starch Hydric properties 02 engineering and technology Biodegradable Plastics 010402 general chemistry 01 natural sciences Bioplastic complex mixtures Permeability [SPI.MAT]Engineering Sciences [physics]/Materials Diffusion chemistry.chemical_compound Adsorption Materials Chemistry Solubility Kaolin Metakaolin Plant Extracts Organic Chemistry Water Biodegradation 021001 nanoscience & nanotechnology Microstructure Casting Cassava starch-based bioplastic 6. Clean water 0104 chemical sciences Biodegradability Biodegradation Environmental [CHIM.POLY]Chemical Sciences/Polymers chemistry Chemical engineering Clay 0210 nano-technology |
| Zdroj: | Carbohydrate Polymers Carbohydrate Polymers, Elsevier, 2021, 254, pp.117322. ⟨10.1016/j.carbpol.2020.117322⟩ Carbohydrate Polymers, 2021, 254, pp.117322. ⟨10.1016/j.carbpol.2020.117322⟩ |
| ISSN: | 0144-8617 |
| DOI: | 10.1016/j.carbpol.2020.117322⟩ |
| Popis: | International audience; In this study, hydric and biodegradability properties of cassava starch-based bioplastics reinforced with crude kaolin or treated kaolinitic clay at 700 °C called metakaolin were investigated using water adsorption and microbiological tests. Non-reinforced bioplastics (BP) and those containing 5 wt.% crude kaolin (BPKB) or metakaolin (BPMKB) were manufactured using the casting/evaporation method. Results obtained showed a decrease in the solubility and in the water diffusion and permeability of clay-reinforced bioplastics with respect to the ones without reinforcement. This improvement of the hydric properties has been attributed to the reduction in the free volumes existing between the starch macromolecules due to their interactions with clay platelets. These interactions might favor a more homogeneous and compact microstructure. The biodegradability of the clay reinforced bioplastics was significantly improved due to the bacterial proliferation. The thermal treatment of kaolinitic clay further improved the hydric and biodegradability properties of starch-based bioplastics. |
| Databáze: | OpenAIRE |
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