Properties and structural characterization of oxide starch/chitosan/graphene oxide biodegradable nanocomposites

被引：49
作者：
Ma, Jun [1 ]
Liu, Changhua [1 ]
Li, Rui [1 ]
Wang, Jia [1 ]
机构：
[1] Southwest Univ, Coll Chem & Chem Engn, Chongqing 400715, Peoples R China
来源：
JOURNAL OF APPLIED POLYMER SCIENCE | 2012年 / 123卷 / 05期
关键词：
oxidized starch; graphene oxide; chitosan; polymer composites; GRAPHITE OXIDE; MECHANICAL-PROPERTIES; CHEMICAL-REDUCTION; COMPOSITE FILMS; PEA STARCH; GRAPHENE; FABRICATION; CHITOSAN; MORPHOLOGY; NANOSHEETS;
D O I：
10.1002/app.34901
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Novel chitosan (CS)/oxidized starch (OST)/graphene oxide (GO) nanocomposites (COST/GO-n) films are prepared in a casting and solvent evaporation method. Fourier transform infrared spectroscopy, X-ray diffractions, atomic force microscopy, scanning electron microscopy, transmission electron microscopy, thermal gravimetric analysis, tensile testing, and moisture uptake are used to study the structure and properties of these nanocomposites. To indicate the effect of carboxyl groups of OST, some results of the properties of CS/starch/GO nanocomposite (CST/GO-n) were selected for control experimentation. Compared with the control CST/GO-n series, COST/GO-n films, which have the same component ration showed higher tensile strength (sb) and lower elongation at break (eb). Additionally, in the COST/GO-n series, the sb increased with an increase of GO loading. However, higher proportion of GO could result in aggregations of GO nanosheets and deterioration of the film properties. Compared with the COST/GO-0, the values of sb and water resistance of the COST/GO-4 containing 2.0 wt % of GO were improved by 57.7 and 20.1%, respectively. (c) 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012
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页码：2933 / 2944
页数：12
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