Preparation and Characterization of Films Extruded of Polyethylene/Chitosan Modified with Poly(lactic acid)

Jesús Manuel Quiroz-Castillo; Dora Evelia Rodríguez-Félix; Heriberto Grijalva-Monteverde; Lauren Lucero Lizárraga-Laborín; María Mónica Castillo-Ortega; Teresa del Castillo-Castro; Francisco Rodríguez-Félix; Pedro Jesús Herrera-Franco

doi:10.3390/ma8010137

Preparation and Characterization of Films Extruded of Polyethylene/Chitosan Modified with Poly(lactic acid)

Jesús Manuel Quiroz-Castillo, Dora Evelia Rodríguez-Félix^*, Heriberto Grijalva-Monteverde, Lauren Lucero Lizárraga-Laborín, María Mónica Castillo-Ortega, Teresa del Castillo-Castro, Francisco Rodríguez-Félix, Pedro Jesús Herrera-Franco

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

26 Scopus citations

Abstract

The use of mixtures of synthetic and natural polymers is a potential option to reduce the pollution by plastic waste. In this work, the method for the chemical modification of chitosan with poly(lactic acid) was developed; then, the preparation of films of blends of polyethylene and chitosan-poly(lactic acid) produced by an extrusion method using polyethylene-graft maleic anhydride as a compatibilizer. It was possible to obtain films with a maximum content of 20 wt% and 30 wt%, chitosan, with and without compatibilizer, respectively. Scanning electron microscope (SEM) analysis showed a homogeneous surface on all films. The addition of the compatibilizer had a significant effect on the mechanical properties of the films, such as an increase in Young's modulus and a decrease in the elongation at break; additionally, the compatibilizer promotes thermal degradation in a single step and gives the film a slight increase in thermal resistance. These results are attributed to an improved interaction in the interface of polyethylene and chitosan-poly(lactic acid), promoted by the compatibilizer.

Original language	English
Pages (from-to)	137-148
Number of pages	12
Journal	Materials
Volume	8
Issue number	1
DOIs	https://doi.org/10.3390/ma8010137
State	Published - 2015

Bibliographical note

Publisher Copyright:
© 2014 by the authors; licensee MDPI, Basel, Switzerland.

Keywords

Chitosan
Extrusion
Maleic anhydride
Poly(lactic acid)
polyethylene

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Quiroz-Castillo, J. M., Rodríguez-Félix, D. E., Grijalva-Monteverde, H., Lizárraga-Laborín, L. L., Castillo-Ortega, M. M., del Castillo-Castro, T., Rodríguez-Félix, F., & Herrera-Franco, P. J. (2015). Preparation and Characterization of Films Extruded of Polyethylene/Chitosan Modified with Poly(lactic acid). Materials, 8(1), 137-148. https://doi.org/10.3390/ma8010137

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Preparation and Characterization of Films Extruded of Polyethylene/Chitosan Modified with Poly(lactic acid)

Abstract

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Keywords

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