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Artículo

Physical and mechanical properties of thermoplastic starch/montmorillonite nanocomposite films

Cyras, Viviana PaolaIcon ; Manfredi, Liliana BeatrizIcon ; Ton That, Min Tan; Vázquez, AnalíaIcon
Fecha de publicación: 07/2008
Editorial: Elsevier
Revista: Carbohydrate Polymers
ISSN: 0144-8617
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Nano-materiales

Resumen

Glycerol-plasticized starch/clay nanocomposites films were prepared from potato starch and three different loadings of montmorillonite aqueous suspensions by casting, to study the effect of the nanoclay in the properties of starch. The clay dispersion in the films was analyzed by X-ray diffraction (XRD). It was observed that the 001 diffraction peak of clay was shift to lower angles in the nanocomposites patterns providing strong evidence that the clay nanolayers formed an intercalated structure but not complete exfoliation. An improvement in the thermal resistance of starch with the addition of clay was also observed by means of thermogravimetric analysis (TGA). The water absorbed by the nanocomposites measured in an environment with a 75% of constant relative humidity was reduced by the addition of montmorillonite to the starch. The micro-tensile test was performed on the nanocomposite films showing significant improvement in the Young modulus up to 500% for the nanocomposite containing 5 wt% of clay.
Palabras clave: Clay , Nanocomposites , Thermoplastic Starch
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/67978
URL: https://www.sciencedirect.com/science/article/pii/S014486170700553X
DOI: http://dx.doi.org/10.1016/j.carbpol.2007.11.014
Colecciones
Articulos(INTECIN)
Articulos de INST.D/TEC.Y CS.DE LA ING."HILARIO FERNANDEZ LONG"
Articulos(INTEMA)
Articulos de INST.DE INV.EN CIENCIA Y TECNOL.MATERIALES (I)
Citación
Cyras, Viviana Paola; Manfredi, Liliana Beatriz; Ton That, Min Tan; Vázquez, Analía; Physical and mechanical properties of thermoplastic starch/montmorillonite nanocomposite films; Elsevier; Carbohydrate Polymers; 73; 1; 7-2008; 55-63
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