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Vitrimerization: A Novel Concept to Reprocess and Recycle Thermoset Waste via Dynamic Chemistry

A new approach for reprocessing of existing thermoset waste is presented. This work demonstrates that unrecyclable thermoset materials can be reprocessed using the concept of associative dynamic bonding, vitrimers. The developed recycling methodology relies on swelling the thermoset network into a s...

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Autores principales: Yue, Liang, Bonab, Vahab Solouki, Yuan, Dian, Patel, Ammar, Karimkhani, Vahid, Manas‐Zloczower, Ica
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6607417/
https://www.ncbi.nlm.nih.gov/pubmed/31565382
http://dx.doi.org/10.1002/gch2.201800076
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author Yue, Liang
Bonab, Vahab Solouki
Yuan, Dian
Patel, Ammar
Karimkhani, Vahid
Manas‐Zloczower, Ica
author_facet Yue, Liang
Bonab, Vahab Solouki
Yuan, Dian
Patel, Ammar
Karimkhani, Vahid
Manas‐Zloczower, Ica
author_sort Yue, Liang
collection PubMed
description A new approach for reprocessing of existing thermoset waste is presented. This work demonstrates that unrecyclable thermoset materials can be reprocessed using the concept of associative dynamic bonding, vitrimers. The developed recycling methodology relies on swelling the thermoset network into a solution of a catalyst, which enables transesterification reactions allowing dynamic bond exchange between ester and hydroxyl groups within the thermoset network. Thermal and mechanical properties for recycled polyurethane and epoxy networks are studied and a strategy to maintain the properties of recycled materials is discussed. The developed methodology promises recycling and even upcycling and reprocessing of previously thought intractable materials. Moreover, processability of vitrimerized thermosets with common thermoplastic manufacturing methods opens up the possibility of tuning recycled networks by adding nanoparticles. This flexibility keeps the application window of recycled thermosets very broad.
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spelling pubmed-66074172019-09-27 Vitrimerization: A Novel Concept to Reprocess and Recycle Thermoset Waste via Dynamic Chemistry Yue, Liang Bonab, Vahab Solouki Yuan, Dian Patel, Ammar Karimkhani, Vahid Manas‐Zloczower, Ica Glob Chall Communications A new approach for reprocessing of existing thermoset waste is presented. This work demonstrates that unrecyclable thermoset materials can be reprocessed using the concept of associative dynamic bonding, vitrimers. The developed recycling methodology relies on swelling the thermoset network into a solution of a catalyst, which enables transesterification reactions allowing dynamic bond exchange between ester and hydroxyl groups within the thermoset network. Thermal and mechanical properties for recycled polyurethane and epoxy networks are studied and a strategy to maintain the properties of recycled materials is discussed. The developed methodology promises recycling and even upcycling and reprocessing of previously thought intractable materials. Moreover, processability of vitrimerized thermosets with common thermoplastic manufacturing methods opens up the possibility of tuning recycled networks by adding nanoparticles. This flexibility keeps the application window of recycled thermosets very broad. John Wiley and Sons Inc. 2019-04-07 /pmc/articles/PMC6607417/ /pubmed/31565382 http://dx.doi.org/10.1002/gch2.201800076 Text en © 2019 The Authors. Published by WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Communications
Yue, Liang
Bonab, Vahab Solouki
Yuan, Dian
Patel, Ammar
Karimkhani, Vahid
Manas‐Zloczower, Ica
Vitrimerization: A Novel Concept to Reprocess and Recycle Thermoset Waste via Dynamic Chemistry
title Vitrimerization: A Novel Concept to Reprocess and Recycle Thermoset Waste via Dynamic Chemistry
title_full Vitrimerization: A Novel Concept to Reprocess and Recycle Thermoset Waste via Dynamic Chemistry
title_fullStr Vitrimerization: A Novel Concept to Reprocess and Recycle Thermoset Waste via Dynamic Chemistry
title_full_unstemmed Vitrimerization: A Novel Concept to Reprocess and Recycle Thermoset Waste via Dynamic Chemistry
title_short Vitrimerization: A Novel Concept to Reprocess and Recycle Thermoset Waste via Dynamic Chemistry
title_sort vitrimerization: a novel concept to reprocess and recycle thermoset waste via dynamic chemistry
topic Communications
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6607417/
https://www.ncbi.nlm.nih.gov/pubmed/31565382
http://dx.doi.org/10.1002/gch2.201800076
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