Use of new silica fillers as additives for polymers used in packaging of fruit

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Title: Use of new silica fillers as additives for polymers used in packaging of fruit
Authors: Arreche, Romina | Blanco, Mirta | Vázquez, Patricia | Martín-Martínez, José Miguel
Research Group/s: Adhesión y Adhesivos
Center, Department or Service: Universidad de Alicante. Departamento de Química Inorgánica
Keywords: Modified silica | SEM | TEM
Knowledge Area: Química Inorgánica
Issue Date: 28-Sep-2012
Publisher: Sociedade Brasileira de Química
Citation: Química Nova. 2012, 35(10): 1907-1911. doi:10.1590/S0100-40422012001000003
Abstract: 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.
ISSN: 0100-4042 | 1678-7064 (Online)
DOI: 10.1590/S0100-40422012001000003
Language: eng
Type: info:eu-repo/semantics/article
Rights: Licencia Creative Commons Reconocimiento-NoComercial 3.0
Peer Review: si
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Appears in Collections:INV - LAA - Artículos de Revistas

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