USE OF NEW SILICA FILLERS AS ADDITIVES FOR POLYMERS USED IN PACKAGING OF FRUIT

被引：5

作者：

Arreche, Romina ^{[1
]}

Blanco, Mirta ^{[1
]}

Vazquez, Patricia ^{[1
]}

Miguel Martin-Martinez, Jose ^{[2
]}

机构：

[1] Natl Univ La Plata, Fac Ciencias Exactas,Ctr Cient Tecnol, Dept Quim,Consejo Nacl Invest Cient & Tecn, Ctr Invest & Desarrollo Ciencias Aplicadas Dr Jor, RA-1900 La Plata, Argentina

[2] Univ Alicante, Adhes & Adhes Lab, E-03080 Alicante, Spain

来源：

QUIMICA NOVA | 2012年 / 35卷 / 10期

关键词：

modified silica; SEM; TEM; APPLE; STORAGE;

D O I：

10.1590/S0100-40422012001000003

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The objective of this work was to synthesize nanosilicas with different degree of hydrophobicity by the sot-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.

引用

页码：1907 / 1911

页数：5

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[11] Synthesis and characterization of novel saponified guar-graft-poly(acrylonitrile)/silica nanocomposite materials [J].