El problema de la hidrofilicidad en materiales plásticos derivados de almidón

  • Alcy Rene Ceron Universidad del Cauca
Palabras clave: Polímeros Biodegradables, Modificación Superficial, Absorción de Agua.

Resumen

El almidón es un polisacárido natural renovable, económico y a partir del cual se pueden obtener fácilmente productos plásticos biodegradables. Sin embargo, los productos obtenidos a partir de almidón presentan bajas propiedades mecánicas y tienden a cambiar sus propiedades en presencia de agua. Para disminuir los problemas provocados por el agua en los productos plásticos derivados de almidón, causados por la alta hidrofilicidad de este polímero, se han planteado diversas estrategias tales como la modificación química del almidón, la asociación del almidón con otros polímeros menos hidrofílicos y la modificación superficial de los productos finales. En la presente revisión se presentan ejemplos de trabajos investigativos relacionados con cada una de las estrategias mencionadas, centrando la atención en la modificación superficial, que permite disminuir con efectividad la hidrofilicidad de los productos derivados de almidón sin afectar apreciablemente las características internas del material.

Biografía del autor/a

Alcy Rene Ceron, Universidad del Cauca
Químico. Grupo de investigación CYTBIA.

Citas

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Publicado
2019-11-01
Sección
Artículos de Investigaciòn