Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7783335 | Carbohydrate Polymers | 2018 | 7 Pages |
Abstract
Nanoparticles (montmorillonite, MMT) can enhance biopolymer-based film properties. The structure-property relationship between polymers and nanoparticles may be explained by the rheological tests of nanocomposite forming solutions (NFS). The aim of this work was to study the effect of MMT concentration and amylose content on the rheological properties of NFS based on corn starch and glycerol following two preparation methods, through steady shear and dynamic tests. The organization level of NFS was influenced by the addition order of the components. Decreasing in flow index behavior when increasing amylose content was attributed to interactions between the starch components. In all NFS, Gâ² was higher than Gâ³ indicating a gel-like behavior and suggesting that the MMT reinforced the starch matrix as observed by the increase in the storage modulus of films with MMT. Films obtained from method 2 have better mechanical properties probably due to the starch-MMT interactions.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Claudia A. Romero-Bastida, Miguel Chávez Gutiérrez, Luis A. Bello-Pérez, Estefania Abarca-RamÃrez, Gonzalo Velazquez, Guadalupe Mendez-Montealvo,