Use of new silica fillers as additives for polymers used in packaging of fruit
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Título: | Use of new silica fillers as additives for polymers used in packaging of fruit |
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Autor/es: | Arreche, Romina | Blanco, Mirta | Vázquez, Patricia | Martín-Martínez, José Miguel |
Grupo/s de investigación o GITE: | Adhesión y Adhesivos |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Química Inorgánica |
Palabras clave: | Modified silica | SEM | TEM |
Área/s de conocimiento: | Química Inorgánica |
Fecha de publicación: | 28-sep-2012 |
Editor: | Sociedade Brasileira de Química |
Cita bibliográfica: | Química Nova. 2012, 35(10): 1907-1911. doi:10.1590/S0100-40422012001000003 |
Resumen: | The objective of this work was to synthesize nanosilicas with different degree of hydrophobicity by the sol-gel method, using tetraethyl orthosilicate as a precursor. For this purpose, 3-aminopropyl triethoxysilane (APS) and 1,1,1,3,3,3 - hexamethyldisilazane (HMDS), were added during synthesis as modifiers. A commercial biopolymer (Hexamoll Dinch, BASF) intended for packaging of apples, was added to the new nanosilicas. The materials obtained were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, potentiometric titration, porosity, specific surface area and hydrophobicity/hydrophilicity by wetting test. Colorimetry was used to evaluate change in apple pulp color after contact with the different silicas. |
URI: | http://hdl.handle.net/10045/33682 |
ISSN: | 0100-4042 | 1678-7064 (Online) |
DOI: | 10.1590/S0100-40422012001000003 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | Licencia Creative Commons Reconocimiento-NoComercial 3.0 |
Revisión científica: | si |
Versión del editor: | http://dx.doi.org/10.1590/S0100-40422012001000003 |
Aparece en las colecciones: | INV - LAA - Artículos de Revistas |
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2012_Arreche_etal_QuimNova.pdf | 1,54 MB | Adobe PDF | Abrir Vista previa | |
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