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Renewable Coumarin-Derived Network as a Toughening Structure for Petroleum-Based Epoxy Resins

[Image: see text] A double-network strategy to toughen epoxy resin system is presented herein. Dihydrocoumarin (DHC), a hexatomic compound extracted from tonka bean, is used as the building block for the construction of the first network, and the diglycidyl ether of bisphenol A epoxy matrix is used...

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Autores principales: Cai, Xiaoxia, Li, Cong, Qiao, Congde, Peng, Dan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2019
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6777077/
https://www.ncbi.nlm.nih.gov/pubmed/31592475
http://dx.doi.org/10.1021/acsomega.9b02282
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author Cai, Xiaoxia
Li, Cong
Qiao, Congde
Peng, Dan
author_facet Cai, Xiaoxia
Li, Cong
Qiao, Congde
Peng, Dan
author_sort Cai, Xiaoxia
collection PubMed
description [Image: see text] A double-network strategy to toughen epoxy resin system is presented herein. Dihydrocoumarin (DHC), a hexatomic compound extracted from tonka bean, is used as the building block for the construction of the first network, and the diglycidyl ether of bisphenol A epoxy matrix is used as the second network. The resultant double network demonstrates a single glass transition and good compatibility between these two networks. Owing to the firm interfacial adhesion between networks and the effective stress transfer as well as external energy absorption derived from the DHC-based network, the double-network-based epoxy resin shows a significant toughness improvement without trade-offs in the tensile strength and elongation at break. The finding in this study provides a promising way to overcome the intrinsic brittleness of commercial epoxy resin via the utilization of renewable DHC for the construction of a novel double network.
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spelling pubmed-67770772019-10-07 Renewable Coumarin-Derived Network as a Toughening Structure for Petroleum-Based Epoxy Resins Cai, Xiaoxia Li, Cong Qiao, Congde Peng, Dan ACS Omega [Image: see text] A double-network strategy to toughen epoxy resin system is presented herein. Dihydrocoumarin (DHC), a hexatomic compound extracted from tonka bean, is used as the building block for the construction of the first network, and the diglycidyl ether of bisphenol A epoxy matrix is used as the second network. The resultant double network demonstrates a single glass transition and good compatibility between these two networks. Owing to the firm interfacial adhesion between networks and the effective stress transfer as well as external energy absorption derived from the DHC-based network, the double-network-based epoxy resin shows a significant toughness improvement without trade-offs in the tensile strength and elongation at break. The finding in this study provides a promising way to overcome the intrinsic brittleness of commercial epoxy resin via the utilization of renewable DHC for the construction of a novel double network. American Chemical Society 2019-09-18 /pmc/articles/PMC6777077/ /pubmed/31592475 http://dx.doi.org/10.1021/acsomega.9b02282 Text en Copyright © 2019 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes.
spellingShingle Cai, Xiaoxia
Li, Cong
Qiao, Congde
Peng, Dan
Renewable Coumarin-Derived Network as a Toughening Structure for Petroleum-Based Epoxy Resins
title Renewable Coumarin-Derived Network as a Toughening Structure for Petroleum-Based Epoxy Resins
title_full Renewable Coumarin-Derived Network as a Toughening Structure for Petroleum-Based Epoxy Resins
title_fullStr Renewable Coumarin-Derived Network as a Toughening Structure for Petroleum-Based Epoxy Resins
title_full_unstemmed Renewable Coumarin-Derived Network as a Toughening Structure for Petroleum-Based Epoxy Resins
title_short Renewable Coumarin-Derived Network as a Toughening Structure for Petroleum-Based Epoxy Resins
title_sort renewable coumarin-derived network as a toughening structure for petroleum-based epoxy resins
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6777077/
https://www.ncbi.nlm.nih.gov/pubmed/31592475
http://dx.doi.org/10.1021/acsomega.9b02282
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