Starch nanocrystals and starch nanoparticles from waxy maize as nanoreinforcement: A comparative study

被引：82

作者：

Haaj, Sihem Bel ^{[1
]}

Thielemans, Wim ^{[2
]}

Magnin, Albert ^{[3
]}

Boufi, Sami ^{[1
]}

机构：

[1] Univ Sfax, Sfax Fac Sci LMSE, BP 802, Sfax 3018, Tunisia

[2] Katholieke Univ Leuven, Renewable Mat & Nanotechnol Res Grp, Campus Kortrijk,Etienne Sabbelaan 53, B-8500 Kortrijk, Belgium

[3] Univ Grenoble Alpes, LRP, F-38000 Grenoble, France

来源：

CARBOHYDRATE POLYMERS | 2016年 / 143卷

基金：

比利时弗兰德研究基金会;

关键词：

Starch nanocrystals; Starch nanoparticles; Nanocomposite; Nanoreinforcement; MECHANICAL-PROPERTIES; CELLULOSE; NANOCOMPOSITES;

D O I：

10.1016/j.carbpol.2016.01.061

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The morphological, structural and thermal behavior of starch nanocrystals (SNCs) extracted from waxy maize starch through an acid hydrolysis were compared with those of starch nanoparticles (SNPs) obtained through an ultrasound treatment starting from the same waxy maize starch. The SNPs were found to be completely amorphous, slightly smaller and had no surface charge, whereas the SNCs had the expected platelet-like morphology with a negative surface charge introduced as a result of the use of sulphuric acid in the acid hydrolysis step. SNCs also showed better thermal stability than SNPs in the presence of water. As a result of their platelet-like morphology, the SNCs performed better in reinforcing a polymer film. On the other hand, SNPs reduced the transparency of the nanocomposite films to a lesser extent than the SNCs due to their smaller size. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：310 / 317

页数：8

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