Extrusion of polypropylene/chitosan/poly(lactic‐acid) films: Chemical, mechanical, and thermal properties

Development of extruded films composed of biopolymers blended with synthetic polymers aims to minimize the environmental impact of plastic waste‐materials and lead to the sustainable plastic industry. To produce biodegradable polymeric blends, the weight content of biopolymers must be maximum withou...

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Bibliographic Details
Published in:Journal of applied polymer science 2021-02, Vol.138 (7), p.n/a
Main Authors: Quiroz‐Castillo, Jesús M., Rodríguez‐Félix, Dora E., Romero‐García, Jorge, Madera‐Santana, Tomás J., Encinas‐Encinas, José C., Castillo‐Ortega, María M., Cabrera‐Germán, Dagoberto, Lizárraga‐Laborín, Lauren L.
Format: Article
Language:English
Subjects:
Biodegradability
Biopolymers
Chitosan
Environmental impact
Extrusion
Maleic anhydride
Mass production
Materials science
Mechanical properties
Polymer blends
Polymer films
Polymers
Polypropylene
synthesis and processing techniques
Thermodynamic properties
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Summary:Development of extruded films composed of biopolymers blended with synthetic polymers aims to minimize the environmental impact of plastic waste‐materials and lead to the sustainable plastic industry. To produce biodegradable polymeric blends, the weight content of biopolymers must be maximum without compromising the performance properties of the extruded films. Using a solvent‐free extrusion method, films composed of polypropylene, poly(lactic‐acid), and Chitosan, can be obtained with the use of polypropylene‐graft‐maleic anhydride and glycerol as compatibilizer and plasticizer, respectively. Extruded films with up to a 50 wt% content of biopolymers show acceptable thermal and mechanical properties, where the use of compatibilizer improves the processing characteristics and homogeneous distribution of chitosan throughout the films. Therefore, the extruded films can be considered as alternatives to conventional synthetic‐polymer films, due to their acceptable mechanical and thermal properties with direct potential applications in extrusion‐method mass production of biodegradable polymers.
ISSN:0021-8995
1097-4628
DOI:10.1002/app.49850