INFLUENCIA DEL TAMAÑO DE PARTÍCULA EN EL RENDIMIENTO DE LA HIDRÓLISIS ALCALINA DEL POLIETILENTEREFTALATO (PET) POST- CONSUMO

Paul Palmay; Mishell Sánchez; Michele Alvarado

doi:10.47187/perf.v1i29.196

Autores/as

Paul Palmay Escuela Superior Politécnica de Chimborazo, Facultad de Ciencias, Riobamba,Ecuador.
Mishell Sánchez Escuela Superior Politécnica de Chimborazo, Facultad de Ciencias, Riobamba,Ecuador.
Michele Alvarado Escuela Superior Politécnica de Chimborazo, Facultad de Ciencias, Riobamba,Ecuador.

DOI:

https://doi.org/10.47187/perf.v1i29.196

Palabras clave:

Hidrólisis, álcali, plástico, color, tamaño

Resumen

La generación de plástico a nivel mundial se ha incrementado a un ritmo descontrolado, donde el termoplástico que más aparece es el polietilentereftalato PET, debido a su uso en la industria alimenticia. En la actualidad, se manejan varias tecnologías para su adecuada disposición final. En los últimos años se ha fortalecido las tecnologías de reciclaje químico para obtener productos de interés industrial a partir de un residuo. En este sentido la hidrólisis es una técnica que busca la descomposición del PET, mediante un conjunto de reacciones químicas considerando factores como: tamaño de partícula del PET, catalizador, condiciones de reacción, composición del PET y demás. Para el estudio se utilizó dos dimensiones del plástico: 5mm x 5mm (T5mm) y 10mm x 10mm (T10mm), de plásticos de colores verde y violeta. El material obtenido se caracterizó por medio de espectroscopia infrarroja (FTIR) y prueba de solubilidad, corroborando la presencia de ácido tereftálico (TPA). El mejor resultado se obtuvo con la partícula “T5mm, verde”, con un rendimiento de 96,346%. Por lo tanto, mientras más pequeño sea el tamaño de la partícula, mayor será la probabilidad de que exista una interacción química entre la superficie de las partículas PET y la solución base.

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