Thermoformable and recyclable CFRP pultruded profile manufactured from an epoxy vitrimer

In the present work a recyclable and reprocessable vitrimer suitable for pultrusion process has been formulated and a pultruded profile reshaped by thermoforming has been manufactured therefrom. A DGEBA epoxy resin with medium range viscosity and a bis(a-aminophenyl disulfide) as dynamic crosslinker...

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Autores principales:	Ibon Aranberri, Maite Landa, Edurne Elorza, Asier M. Salaberria, Alaitz Rekondo
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Epoxy vitrimers Pultrusion Reprocessable Recyclable Thermoforming Polymers and polymer manufacture TP1080-1185
Acceso en línea:	https://doaj.org/article/f514ed573f434a96850530dbf5d6954b
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spelling	oai:doaj.org-article:f514ed573f434a96850530dbf5d6954b2021-11-24T04:24:30ZThermoformable and recyclable CFRP pultruded profile manufactured from an epoxy vitrimer0142-941810.1016/j.polymertesting.2020.106931https://doaj.org/article/f514ed573f434a96850530dbf5d6954b2021-01-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0142941820321607https://doaj.org/toc/0142-9418In the present work a recyclable and reprocessable vitrimer suitable for pultrusion process has been formulated and a pultruded profile reshaped by thermoforming has been manufactured therefrom. A DGEBA epoxy resin with medium range viscosity and a bis(a-aminophenyl disulfide) as dynamic crosslinker were used for the synthesis of the vitrimer. The thermal stability was studied by thermogravimetric analysis (TGA) and curing behaviour and curing kinetics were studied by means of dynamic scanning calorimeter (DSC) and rheology measurements. Mechanical properties of the dynamic resins and its counterpart epoxy resin and of the fabricated carbon fibre reinforced polymers (CFRP) were determined. The dynamic resin showed a fast stress relaxation at temperatures above 150 °C. Finally, as a proof of concept, mechanical recyclability and the thermoforming of the vitrimer-based pultruded profile have been validated.Ibon AranberriMaite LandaEdurne ElorzaAsier M. SalaberriaAlaitz RekondoElsevierarticleEpoxy vitrimersPultrusionReprocessableRecyclableThermoformingPolymers and polymer manufactureTP1080-1185ENPolymer Testing, Vol 93, Iss , Pp 106931- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Epoxy vitrimers Pultrusion Reprocessable Recyclable Thermoforming Polymers and polymer manufacture TP1080-1185
spellingShingle	Epoxy vitrimers Pultrusion Reprocessable Recyclable Thermoforming Polymers and polymer manufacture TP1080-1185 Ibon Aranberri Maite Landa Edurne Elorza Asier M. Salaberria Alaitz Rekondo Thermoformable and recyclable CFRP pultruded profile manufactured from an epoxy vitrimer
description	In the present work a recyclable and reprocessable vitrimer suitable for pultrusion process has been formulated and a pultruded profile reshaped by thermoforming has been manufactured therefrom. A DGEBA epoxy resin with medium range viscosity and a bis(a-aminophenyl disulfide) as dynamic crosslinker were used for the synthesis of the vitrimer. The thermal stability was studied by thermogravimetric analysis (TGA) and curing behaviour and curing kinetics were studied by means of dynamic scanning calorimeter (DSC) and rheology measurements. Mechanical properties of the dynamic resins and its counterpart epoxy resin and of the fabricated carbon fibre reinforced polymers (CFRP) were determined. The dynamic resin showed a fast stress relaxation at temperatures above 150 °C. Finally, as a proof of concept, mechanical recyclability and the thermoforming of the vitrimer-based pultruded profile have been validated.
format	article
author	Ibon Aranberri Maite Landa Edurne Elorza Asier M. Salaberria Alaitz Rekondo
author_facet	Ibon Aranberri Maite Landa Edurne Elorza Asier M. Salaberria Alaitz Rekondo
author_sort	Ibon Aranberri
title	Thermoformable and recyclable CFRP pultruded profile manufactured from an epoxy vitrimer
title_short	Thermoformable and recyclable CFRP pultruded profile manufactured from an epoxy vitrimer
title_full	Thermoformable and recyclable CFRP pultruded profile manufactured from an epoxy vitrimer
title_fullStr	Thermoformable and recyclable CFRP pultruded profile manufactured from an epoxy vitrimer
title_full_unstemmed	Thermoformable and recyclable CFRP pultruded profile manufactured from an epoxy vitrimer
title_sort	thermoformable and recyclable cfrp pultruded profile manufactured from an epoxy vitrimer
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/f514ed573f434a96850530dbf5d6954b
work_keys_str_mv	AT ibonaranberri thermoformableandrecyclablecfrppultrudedprofilemanufacturedfromanepoxyvitrimer AT maitelanda thermoformableandrecyclablecfrppultrudedprofilemanufacturedfromanepoxyvitrimer AT edurneelorza thermoformableandrecyclablecfrppultrudedprofilemanufacturedfromanepoxyvitrimer AT asiermsalaberria thermoformableandrecyclablecfrppultrudedprofilemanufacturedfromanepoxyvitrimer AT alaitzrekondo thermoformableandrecyclablecfrppultrudedprofilemanufacturedfromanepoxyvitrimer
_version_	1718416070155436032

Thermoformable and recyclable CFRP pultruded profile manufactured from an epoxy vitrimer

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