Oligomer epoxy binders with controllable molecular characteristics: Curing rheokinetics

A method for calculation of molecular characteristics and compositions of the mixtures of industrial epoxy diane oligomers (EDOs) with the given parameters of molecular weights and molecular weight distribution is proposed. Using the rheokinetic investigation techniques, the time ranges of the initial stages of EDO curing were defined and the dependence of time parameters of curing on the molecular characteristics and fractional compositions of the mixtures of these oligomers were determined. The investigations performed allow calculation, prediction, and optimization of compositions of epoxy binders and technological parameters of different stages of the production of polymer-composite materials and adhesive bonds with a complex of given properties.