PBAT/organoclay composite films: preparation and properties
| Autor: | Gabriella A. M. Falcão, Eduardo L. Canedo, Laura H. Carvalho, Tatiara G. Almeida, Maria B. C. Vitorino, Marcelo A. G. Bardi |
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| Rok vydání: | 2017 |
| Předmět: |
chemistry.chemical_classification
Materials science Polymers and Plastics Composite number Plastics extrusion Plastic materials 02 engineering and technology General Chemistry Polymer 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences law.invention Food packaging chemistry law Materials Chemistry Organoclay Degradation (geology) Crystallization Composite material 0210 nano-technology |
| Zdroj: | Polymer Bulletin. 74:4423-4436 |
| ISSN: | 1436-2449 0170-0839 |
| Popis: | Environmental problems caused by the increased waste associated with short-term use of plastic materials, particularly by the food packaging industry, prompted the search for biodegradable alternatives. This contribution studied one of these alternatives, poly(butylene adipate-co-terephthalate)—PBAT, a polymer that is fully biodegradable in common landfills, compounded with a small amount of Cloisite 20A organoclay. Materials were mixed in a laboratory internal mixer and films prepared in a chill roll extruder. Results show that the presence of organoclay does not increase degradation of the polymer matrix during processing, nor affects its crystallization characteristics. However, organoclay addition significantly diminished oxygen and carbon dioxide permeability of the films, making them a very interesting alternative for the food packaging industry. |
| Databáze: | OpenAIRE |
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