Cure kinetics, glass transition advancement and chemo-rheological modelling of an epoxy vitrimer based on disulphide metathesis

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dc.contributor.authorAnagwu, Festus Ifeanyi
dc.contributor.authorSkordos, Alexandros A.
dc.date.accessioned2023-11-06T13:43:22Z
dc.date.available2023-11-06T13:43:22Z
dc.date.issued2023-11-03
dc.description.abstractThis study develops cure and chemo-rheological models for a vitrimeric system appropriate for use as matrix in continuous fibre composites based on a disulphide-endowed amine/epoxy formulation. The focus is on the processing conditions relevant to liquid composite moulding. Kinetics is investigated using Differential Scanning Calorimetry. An autocatalytic model is developed, simulating the reaction with an average reaction rate error of 5.2 % and degree of cure error of 3 %. The viscosity development is modelled at relatively low degrees of cure, focusing on the liquid moulding infusion window, yielding results with an average relative error of 4.8 %. The glass transition temperature advancement is represented by the Di Benedetto equation, whilst the topological transition temperature of the system is determined using stress relaxation experiments and found to be 149.5 °C. These results set the scene for the development of composites based on the matrix system investigated in this work.en_UK
dc.identifier.citationAnagwu FI, Skordos AA. (2023) Cure kinetics, glass transition advancement and chemo-rheological modelling of an epoxy vitrimer based on disulphide metathesis, Polymer, Volume 288, December 2023, Article Number 126427en_UK
dc.identifier.eissn1873-2291
dc.identifier.issn0032-3861
dc.identifier.urihttps://doi.org/10.1016/j.polymer.2023.126427
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/20505
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectCure kineticsen_UK
dc.subjectVitrimersen_UK
dc.subjectCompositesen_UK
dc.subjectChemo-rheologyen_UK
dc.subjectGlass transitionen_UK
dc.subjectTopology transitionen_UK
dc.titleCure kinetics, glass transition advancement and chemo-rheological modelling of an epoxy vitrimer based on disulphide metathesisen_UK
dc.typeArticleen_UK

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