Recycling of Wastes Deriving from the Production of Epoxy-Carbon Fiber Composites in the Production of Polymer Composites

The formulation of composites reinforced with shredded epoxy-carbon fibers wastes is investigated. Poly (buthylene terephthalate) PBT was selected as the matrix for the composites. In order to increase the interaction between the epoxy resin still coating the carbon fibers and the PBT matrix, polyca...

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Main Authors: Andrea Saccani, Maurizio Fiorini, Stefania Manzi
Format: Article
Language:English
Published: MDPI AG 2022-04-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/12/9/4287
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author Andrea Saccani
Maurizio Fiorini
Stefania Manzi
author_facet Andrea Saccani
Maurizio Fiorini
Stefania Manzi
author_sort Andrea Saccani
collection DOAJ
description The formulation of composites reinforced with shredded epoxy-carbon fibers wastes is investigated. Poly (buthylene terephthalate) PBT was selected as the matrix for the composites. In order to increase the interaction between the epoxy resin still coating the carbon fibers and the PBT matrix, polycarbonate (PC) was added either to the matrix formulation or as a waste coating. The flexural strength, impact strength, and dynamic-mechanical analysis of the new composites was investigated, as well as their microstructure by scanning electron microscopy. Experimental results show that the recycled fibers can be dispersed in both pure PBT and in its blend, enhancing the mechanical properties of the composites. An increase in the investigated properties is found specifically in the elastic modulus below 50 °C and in the impact strength. The extent of the increase depends on the obtained microstructure.
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spelling doaj.art-2cf7c38c334d43deb002adeeeaadecc42023-11-23T07:46:57ZengMDPI AGApplied Sciences2076-34172022-04-01129428710.3390/app12094287Recycling of Wastes Deriving from the Production of Epoxy-Carbon Fiber Composites in the Production of Polymer CompositesAndrea Saccani0Maurizio Fiorini1Stefania Manzi2Department of Civil, Chemical, Environmental and Material Engineering, University of Bologna, Via Terracini 28, 40131 Bologna, ItalyDepartment of Civil, Chemical, Environmental and Material Engineering, University of Bologna, Via Terracini 28, 40131 Bologna, ItalyDepartment of Civil, Chemical, Environmental and Material Engineering, University of Bologna, Via Terracini 28, 40131 Bologna, ItalyThe formulation of composites reinforced with shredded epoxy-carbon fibers wastes is investigated. Poly (buthylene terephthalate) PBT was selected as the matrix for the composites. In order to increase the interaction between the epoxy resin still coating the carbon fibers and the PBT matrix, polycarbonate (PC) was added either to the matrix formulation or as a waste coating. The flexural strength, impact strength, and dynamic-mechanical analysis of the new composites was investigated, as well as their microstructure by scanning electron microscopy. Experimental results show that the recycled fibers can be dispersed in both pure PBT and in its blend, enhancing the mechanical properties of the composites. An increase in the investigated properties is found specifically in the elastic modulus below 50 °C and in the impact strength. The extent of the increase depends on the obtained microstructure.https://www.mdpi.com/2076-3417/12/9/4287compositespoly (buthylene terephthalate)polycarbonaterecyclingwaste carbon fiber
spellingShingle Andrea Saccani
Maurizio Fiorini
Stefania Manzi
Recycling of Wastes Deriving from the Production of Epoxy-Carbon Fiber Composites in the Production of Polymer Composites
Applied Sciences
composites
poly (buthylene terephthalate)
polycarbonate
recycling
waste carbon fiber
title Recycling of Wastes Deriving from the Production of Epoxy-Carbon Fiber Composites in the Production of Polymer Composites
title_full Recycling of Wastes Deriving from the Production of Epoxy-Carbon Fiber Composites in the Production of Polymer Composites
title_fullStr Recycling of Wastes Deriving from the Production of Epoxy-Carbon Fiber Composites in the Production of Polymer Composites
title_full_unstemmed Recycling of Wastes Deriving from the Production of Epoxy-Carbon Fiber Composites in the Production of Polymer Composites
title_short Recycling of Wastes Deriving from the Production of Epoxy-Carbon Fiber Composites in the Production of Polymer Composites
title_sort recycling of wastes deriving from the production of epoxy carbon fiber composites in the production of polymer composites
topic composites
poly (buthylene terephthalate)
polycarbonate
recycling
waste carbon fiber
url https://www.mdpi.com/2076-3417/12/9/4287
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