Effect of stoichiometry on crosslinked epoxy resin characteristics: structural heterogeneities, topological defects, properties, free volume and segmental mobility
Arun Srikanth Sridhar
Abstract
) and it was established that the key mechanism underlying these correlations was the plasticization caused by defects. Analysis based on the rule of mixture models showed that these correlations were found to be in good agreement with the interpretations based on free volume concepts. The results also revealed a strong negative correlation between fractional free volume at room temperature and defect composition, a phenomenon typically associated with the antiplasticization effect.
Topics & Concepts
StoichiometryMaterials scienceEpoxyThermal expansionMonomerVolume (thermodynamics)Glass transitionChemical physicsMolecular dynamicsThermodynamicsTopology (electrical circuits)Composite materialChemistryComputational chemistryPolymerPhysical chemistryPhysicsMathematicsCombinatoricsEpoxy Resin Curing ProcessesPolymer Nanocomposites and PropertiesMechanical Behavior of Composites