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Mendes J.F.,Federal University of Lavras | Paschoalin R.T.,Laboratorio Of Nanotecnologia Nacional Of Agricultura Lnna | Carmona V.B.,Laboratorio Of Nanotecnologia Nacional Of Agricultura Lnna | Sena Neto A.R.,Laboratorio Of Nanotecnologia Nacional Of Agricultura Lnna | And 5 more authors.
Carbohydrate Polymers | Year: 2016

Blends of thermoplastic cornstarch (TPS) and chitosan (TPC) were obtained by melt extrusion. The effect of TPC incorporation in TPS matrix and polymer interaction on morphology and thermal and mechanical properties were investigated. Possible interactions between the starch molecules and thermoplastic chitosan were assessed by XRD and FTIR techniques. Scanning Electron Microscopy (SEM) analyses showed a homogeneous fracture surface without the presence of starch granules or chitosan aggregates. Although the incorporation of thermoplastic chitosan caused a decrease in both tensile strength and stiffness, films with better extensibility and thermal stability were produced. © 2015 Elsevier Ltd. All rights reserved.


PubMed | Federal University of Lavras, Laboratorio Of Nanotecnologia Nacional Of Agricultura Lnna and Federal University of Paraiba
Type: | Journal: Carbohydrate polymers | Year: 2015

Blends of thermoplastic cornstarch (TPS) and chitosan (TPC) were obtained by melt extrusion. The effect of TPC incorporation in TPS matrix and polymer interaction on morphology and thermal and mechanical properties were investigated. Possible interactions between the starch molecules and thermoplastic chitosan were assessed by XRD and FTIR techniques. Scanning Electron Microscopy (SEM) analyses showed a homogeneous fracture surface without the presence of starch granules or chitosan aggregates. Although the incorporation of thermoplastic chitosan caused a decrease in both tensile strength and stiffness, films with better extensibility and thermal stability were produced.

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