Structure and Properties of Epoxy Polysulfone Systems Modified with an Active Diluent

An epoxy resin modified with polysulfone (PSU) and active diluent furfuryl glycidyl ether (FGE) was studied. Triethanolaminotitanate (TEAT) and iso-methyltetrahydrophthalic anhydride (iso-MTHPA) were used as curing agents. It is shown that during the curing of initially homogeneous mixtures, heterog...

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Bibliographic Details
Published in:Polymers 2022-12, Vol.14 (23), p.5320
Main Authors: Petrova, Tuyara V, Tretyakov, Ilya V, Kireynov, Alexey V, Shapagin, Alexey V, Budylin, Nikita Yu, Alexeeva, Olga V, Beshtoev, Betal Z, Solodilov, Vitaliy I, Yurkov, Gleb Yu, Berlin, Alexander Al
Format: Article
Language:English
Subjects:
Analysis
Composite materials
Crack propagation
Curing
Curing agents
Epoxy resins
Heat resistance
Homogeneous mixtures
Interferometry
Mechanical properties
Methyltetrahydrophthalic anhydride
Plastics
Polymer blends
Polysulfone resins
Temperature
Thermoplastics
Viscosity
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Summary:An epoxy resin modified with polysulfone (PSU) and active diluent furfuryl glycidyl ether (FGE) was studied. Triethanolaminotitanate (TEAT) and iso-methyltetrahydrophthalic anhydride (iso-MTHPA) were used as curing agents. It is shown that during the curing of initially homogeneous mixtures, heterogeneous structures are formed. The type of these structures depends on the concentration of active diluent and the type of hardener. The physico-mechanical properties of the hybrid matrices are determined by the structure formed. The maximum resistance to a growing crack is provided by structures with a thermoplastic-enriched matrix-interpenetrating structures. The main mechanism for increasing the energy of crack propagation is associated with the implementation of microplasticity of extended phases enriched in polysulfone and their involvement in the fracture process.
ISSN:2073-4360
2073-4360
DOI:10.3390/polym14235320