Fracture Toughness of Winding Carbon Plastics Based on Epoxy Matrices and Reinforced by Polysulfone Film
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Le résumé fourni par la source
In this work, the fracture mechanism of winding carbon-fiber-reinforced plastics (CFRPs) based on epoxy matrices reinforced by polysulfone film was investigated. Two types of polymer matrices were used: epoxy oligomer (EO) cured by iso-methyltetrahydrophthalic anhydride (iso-MTHPA), and EO-modified polysulfone (PSU) with active diluent furfuryl glycidyl ether (FGE) cured by iso-MTHPA. At the winding stage, the reinforcing film was placed in the middle layer of the CFRP. The fracture toughness GIR of the obtained CFRP was determined by the double-cantilever beam delamination method. Additionally, the effect of cyclic loading on the fracture toughness of CFRP reinforced with polysulfone film was investigated. It was shown that heterogeneous structures arising from the dissolution of the polysulfone film in the epoxy binder during the curing process increase the fracture toughness of CFRP from 0.5 kJ/m2 to 1.2 kJ/m2. Application of cyclic loads had little effect on the fracture toughness value. As a result of this study, it was revealed that the macrocrack propagates near the reinforcement layer along the diffusion zone, which has a phase organization of the type PSU matrix–EO dispersion.
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Fracture Toughness of Winding Carbon Plastics Based on Epoxy Matrices and Reinforced by Polysulfone Film
- Date Crossref
- 16/01/2025
- Éditeur
- MDPI AG
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Bauman Moscow State Technical University NTI Center “Digital Materials Science: New Materials and Substances” pays non établi dans la noticeUniversité ou école supérieure
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Semenov Institute of Chemical Physics pays non établi dans la noticeStructure de recherche
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Frumkin Institute of Physical Chemistry and Electrochemistry pays non établi dans la noticeStructure de recherche
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Institute of Biochemical Physics NM Emanuel pays non établi dans la noticeStructure de recherche
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N.N. Semenov Federal Research Center for Chemical Physics pays non établi dans la noticeStructure de recherche
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N.M. Emanuel Institute of Biochemical Physics pays non établi dans la noticeStructure de recherche
NTI Center “Digital Materials Science: New Materials and Substances” — Bauman Moscow State Technical University, Semenov Institute of Chemical Physics et Frumkin Institute of Physical Chemistry and Electrochemistry, avec 3 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.