Preparation and characterization of degradable composite materials

D. E. Rodríguez-Félix, J. M. Quiroz-Castillo, T. Del Castillo-Castro, M. M. Castillo-Ortega, L. P. Ramírez-Rodríguez, D. García-Bedoya, T. Mendívil-Reynoso

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Increasing volumes of synthetic polymers are manufactured for various applications, a way to address the problem of the polymer waste is by adding natural occurring polymers to a synthetic polymeric matrix. In this work, it was possible to extrude films of polyethylene (PE) with poly(lactic acid) (PLA) at any weight ratio; however, a range of 10 to 50 wt[%] PLA was selected. The results of tensile strength tests demonstrated a strong interaction of the chains of PE and poly (lactic acid) in the presence of 5 wt[%] of compatibilizer. Thermal analysis showed an improvement in thermal stability of the compatibilized films. SEM images showed a smooth and homogeneous surface in the films, regardless of the presence of the compatibilizer. The sensitivity to temperature, relative humidity, and solar radiation was evaluated for the films containing a 50 wt[%] of PLA in the polymeric matrix of PE; this was done through solar degradation experiments.

Translated title of the contributionPreparación y caracterización de materiales compuestos degradables
Original languageEnglish
Pages (from-to)18-24
Number of pages7
JournalSuperficies y Vacio
Issue number1
StatePublished - 1 Mar 2015

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©Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales.


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