Hybrid HPMC nanocomposites containing bacterial cellulose nanocrystals and silver nanoparticles

被引：79

作者：

George, Johnsy ^{[1
]}

Kumar, Ranganathan ^{[1
]}

Sajeevkumar, Vallayil Appukuttan ^{[1
]}

Ramana, Karna Venkata ^{[1
]}

Rajamanickam, Ramalingam ^{[1
]}

Abhishek, Virat ^{[1
]}

Nadanasabapathy, Shanmugam ^{[1
]}

Siddaramaiah ^{[2
]}

机构：

[1] Def Food Res Lab, Mysore 570011, Karnataka, India

[2] Sri Jayachamarajendra Coll Engn, Mysore 570006, Karnataka, India

来源：

CARBOHYDRATE POLYMERS | 2014年 / 105卷

关键词：

Hybrid nanocomposites; Cellulose nanocrystals; Silver nanoparticles; HYDROXYPROPYL METHYLCELLULOSE; WATER-VAPOR; COMPOSITES; SORPTION; FILMS;

D O I：

10.1016/j.carbpol.2014.01.057

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Hydroxypropyl methyl cellulose (HPMC) based hybrid nanocomposites reinforced with bacterial cellulose nanocrystals (BCNC) and silver nanoparticles (AgNPs) had been prepared and characterised. BCNC was capable of improving the tensile strength and modulus of HPMC, but they made the film more brittle. The addition of AgNPs along with BCNC, helped to regain some of the lost elongation properties without affecting other properties. Moisture sorption analysis proved that the hydrophilicity of the nanocomposite decreased considerably by the addition of these nanomaterials. Several mathematical models were also used to fit the experimental sorption results. A unique combination of two nanomaterials was highly effective in overcoming certain limitations of nanocomposites which uses only one type of nanomaterial. This type of hybrid nanocomposites with superior properties is expected to be useful in eco-friendly food packaging applications. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：285 / 292

页数：8

共 28 条

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