Barrier and Mechanical Properties of Clay-Reinforced Polymeric Nanocomposites

被引：25

作者：

de Moura, Marcia R. ^{[1
,3
]}

Aouada, Fauze A. ^{[2
,3
]}

Zucolotto, Valtencir ^{[1
]}

Mattoso, Luiz H. C. ^{[3
]}

机构：

[1] Univ Sao Paulo, Nanomed & Nanotoxicol Lab, IFSC, BR-13560970 Sao Carlos, SP, Brazil

[2] Sao Paulo State Univ, Inst Chem, Araraquara, SP, Brazil

[3] Embrapa Agr Instrumentat CNPDIA, Natl Nanotechnol Lab Agr LNNA, Sao Carlos, SP, Brazil

来源：

POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING | 2011年 / 50卷 / 13期

基金：

巴西圣保罗研究基金会;

关键词：

Barrier properties; Hydroxypropyl methylcellulose; Mechanical properties; Nanocomposite; Pectin; WATER-VAPOR PERMEABILITY; EDIBLE FILMS; ABSORPTION;

D O I：

10.1080/03602559.2011.578296

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 [高分子化学与物理];

摘要：

In this work, clay-based nanocomposites films were prepared by addition of clay-Na+ natural montmorillonite in pectin and hydroxypropyl methylcellulose (HPMC) matrices. Mechanical (tensile strength, elastic modulus, and elongation) and barrier (Water Vapor Permeability (WVP), and Oxygen permeability (O2P)) properties were investigated. From results, it was observed that the WVP and O2P decreased when nanoclay was included into the HPMC and pectin matrix films. Additionally, the incorporation of nanoclay in the films significantly improved the mechanical properties because the reinforcing effect of clay from its high aspect ratio and its enormous surface area. These results are very important in packaging area.

引用

页码：1323 / 1328

页数：6

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