Effects of Poloxamer Content and Storage Time of Biodegradable Starch-Chitosan Films on Its Thermal, Structural, Mechanical, and Morphological Properties

Biodegradable packaging prepared from starch is an alternative to fossil-based plastic packaging. However, the properties of starch packaging do not comply with the necessary physicochemical properties to preserve food. Hence, in a previous study, we reported the preparation of a composite polymer m...

Full description

Saved in:
Bibliographic Details
Published in:Polymers 2021-07, Vol.13 (14), p.2341
Main Authors: Fonseca-García, Abril, Caicedo, Carolina, Jiménez-Regalado, Enrique Javier, Morales, Graciela, Aguirre-Loredo, Rocio Yaneli
Format: Article
Language:English
Subjects:
Biodegradability
Biopolymers
Chitosan
Color
Contact angle
Glycerol
Humidity
Mechanical properties
Morphology
Packaging
Poloxamers
Polymers
Scanning electron microscopy
Software
Stiffness
Storage
Wettability
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Biodegradable packaging prepared from starch is an alternative to fossil-based plastic packaging. However, the properties of starch packaging do not comply with the necessary physicochemical properties to preserve food. Hence, in a previous study, we reported the preparation of a composite polymer material based on starch-chitosan-pluronic F127 that was found to be an adequate alternative packaging material. In this study, we modified the physicochemical properties of this material by storing it for 16 months under ambient conditions. The results indicate that the incorporation of pluronic F127 in the blend polymer can help avoid the retrogradation of starch. Moreover, at higher concentrations of pluronic F127, wettability is reduced. Finally, after storage, the materials exhibited surface modification, which is related to a color change and an increase in solubility, as well as a slight increase in stiffness.
ISSN:2073-4360
2073-4360
DOI:10.3390/polym13142341