| Literature DB >> 26686150 |
J F Mendes1, R T Paschoalin2, V B Carmona2, Alfredo R Sena Neto2, A C P Marques3, J M Marconcini2, L H C Mattoso2, E S Medeiros4, J E Oliveira5.
Abstract
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.Entities:
Keywords: Biodegradable polymers; Extrusion; Thermoplastic chitosan; Thermoplastic starch
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Year: 2015 PMID： 26686150 DOI： 10.1016/j.carbpol.2015.10.093
Source DB: PubMed Journal: Carbohydr Polym ISSN： 0144-8617 Impact factor: 9.381