Influence of Polyethersulfone on the Fracture Toughness of Epoxy Matrices and Reinforced Plastics on Their Basis

The physical-mechanical properties of epoxy matrices modified with polyethersulfone (PES) and unidirectional glass- and carbon-fiber-reinforced plastics (GFRP and CFRP) based on them were investigated. The fracture toughness of epoxy matrices modified with 20 wt% PES, increased by 4.3 times. The del...

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Bibliographic Details
Published in:Mechanics of composite materials 2023-09, Vol.59 (4), p.743-756
Main Authors: Solodilov, V. I., Tretyakov, I. V., Petrova, T. V., Kireynov, A. V., Korokhin, R. A., Yurkov, G. Y.
Format: Article
Language:English
Subjects:
Carbon fiber reinforced plastics
Carbon-epoxy composites
Ceramics
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Composite materials
Composites
Delamination
Epoxy resins
Fiber reinforced polymers
Fracture toughness
Glass
Glass fiber reinforced plastics
Laminated materials
Materials Science
Mechanical properties
Natural Materials
Plastics industry
Polyethersulfones
Solid Mechanics
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Summary:The physical-mechanical properties of epoxy matrices modified with polyethersulfone (PES) and unidirectional glass- and carbon-fiber-reinforced plastics (GFRP and CFRP) based on them were investigated. The fracture toughness of epoxy matrices modified with 20 wt% PES, increased by 4.3 times. The delamination energy of GFRP and CFRP with this content of PES in the matrix increases by 50 and 65%, respectively. A correlation between the fracture toughness of modified matrices and the delamination toughness of GFRP and CFRP was established, and the influence of structure of the matrices on the fracture toughness of the reinforced plastics was demonstrated. A significant increase in the fracture toughness of the matrices and reinforced plastics was also observed during the formation of extended phases enriched with PES.
ISSN:0191-5665
1573-8922
DOI:10.1007/s11029-023-10128-4