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Reciclaje químico de polímeros sintéticos

Authors: Martínez Castelló, Joan;

Reciclaje químico de polímeros sintéticos

Abstract

El presente estudio se centra en la investigación del reciclado químico de poliéster (PET), proporcionando una solución para la disminución de residuos textiles. El estudio se ha focalizado en analizar la cinética de hidrólisis del poliéster en condiciones alcalinas, empleando un co-disolvente alternativo, el isopropanol. El objetivo es establecer las condiciones óptimas de reacción, tales como la concentración de NaOH, la cantidad de isopropanol necesaria para lograr una conversión óptima de poliéster, el tiempo de reacción y la temperatura. En el desarrollo de este trabajo, se tratarán muestras de un tejido de poliéster. Estas muestras se mezclarán con una solución alcalina de NaOH, isopropanol y agua destilada, con variaciones en la concentración de NaOH y proporción de alcohol y agua. La mezcla se someterá a condiciones determinadas de tiempo y temperatura para degradar el tejido a lo largo del proceso. Al finalizar la reacción, se filtrará el residuo no reaccionado de poliéster y se pesará para analizar su conversión. Además, se llevará a cabo una evaluación de la recuperación de ácido tereftálico (TPA) obtenido durante el proceso.

This study focuses on the investigation of the chemical recycling of polyester (PET), providing a solution for the reduction of textile waste. The study has focused on analysing the hydrolysis kinetics of polyester under alkaline conditions, using an alternative co-solvent, isopropanol. The aim is to establish the optimal reaction conditions, such as NaOH concentration, the amount of isopropanol required to achieve optimal polyester conversion, reaction time and temperature. In the development of this work, samples of a polyester fabric will be treated. These samples will be mixed with an alkaline solution of NaOH, isopropanol and distilled water, with variations in NaOH concentration and alcohol/water ratio. The mixture shall be subjected to specific time and temperature conditions to degrade the tissue throughout the process. At the end of the reaction, the unreacted polyester residue shall be filtered and weighed for conversion analysis. In addition, an evaluation of the recovery of terephthalic acid (TPA) obtained during the process shall be carried out.

Country
Spain
Keywords

Refuse and refuse disposal, Àrees temàtiques de la UPC::Enginyeria tèxtil::Fibres tèxtils::Fibres sintètiques, Hidrólisis alcalina, Co-disolvente, Polyester, Textile waste, Gestión de residuos, Polyester fibers, Reciclado químico, Alkaline hydrolysis, Chemical recycling, Residus tèxtils, Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Política i gestió ambiental::Gestió de residus, Fibres de polièster, Residus -- Eliminació, Co-solvent, Poliéster, Waste management

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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