Thermo-rheological and kinetic characterization and modeling of an epoxy vitrimer based on polyimine exchange
Niklas Lorenz, William E. Dyer, Barış Kumru
Abstract
th-order and an autocatalytic approach. The suggested chemo-rheological model captures the intrinsically high viscosity of the resin over a broad temperature and curing range, even after the gelation point. The Di-Benedetto equation represents the glass transition temperature advancement with cure while combining the rheological Winter-Chambon criterion and the kinetic model determines the degree of cure at the gelation. These results give important advice for improved process modeling of vitrimeric resins, facilitate accurate process selection, and pave the way towards the development of composites based on the matrix system investigated in this work.
Topics & Concepts
RheologyEpoxyMaterials scienceCharacterization (materials science)KineticsGlass transitionComposite numberKinetic energyComposite materialThermodynamicsPolymerNanotechnologyPhysicsQuantum mechanicsPolymer composites and self-healingEpoxy Resin Curing ProcessesPolymer Nanocomposites and Properties