Water soluble nanocomposite films based on poly(vinyl alcohol) and chemically modified montmorillonites
Different montmorillonites were added to poly(vinyl alcohol) in order to improve their properties. The used montmorillonite’s were: Cloisite Naþ (Na), Nanofil (NF), and Cloisite 30B (30B). Poly(vinyl alcohol) þ montmorillonite films, obtained by casting, were characterized by means of Fourier transf...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2013 |
| País: | Argentina |
| Institución: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repositorio: | CONICET Digital (CONICET) |
| Idioma: | inglés |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/5052 |
| Acceso en línea: | http://hdl.handle.net/11336/5052 |
| Access Level: | acceso abierto |
| Palabra clave: | Poly(Vinyl Alcohol) Montmorillonite Organoclay Characterization Nanocomposite https://purl.org/becyt/ford/2.5 https://purl.org/becyt/ford/2 https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
| Sumario: | Different montmorillonites were added to poly(vinyl alcohol) in order to improve their properties. The used montmorillonite’s were: Cloisite Naþ (Na), Nanofil (NF), and Cloisite 30B (30B). Poly(vinyl alcohol) þ montmorillonite films, obtained by casting, were characterized by means of Fourier transform infrared spectroscopy, differential scanning calorimetry, thermogravimetric analysis, X-ray diffraction pattern, transmission electron microscopy, water absorption, contact angle, and mechanical properties. Sodium and organically modified montmorillonites were used. The montmorillonite basal peak shifted to a lower angle for composites, with sodium montmorillonites, and the films were exfoliated–intercalated anocomposites. Composites with organically modified montmorillonites presented a micro-morphology and the lowest water absorption. The best mechanical properties were obtained for the composite with sodium montmorillonites. |
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