Effect of Experimental Conditions and Methods for Processing DTA and DSC Results on Reliability of Kinetic Calculations of Parameters of Curing Thermoset Prepregs

摘要

The methods of differential thermal analysis (DTA) and differential scanning calorimetry (DSC) have been used to study the kinetics of curing a thermoset epoxy binder, complicated by intensive self-heating, in an adhesive prepreg based on aramid Ruslan fiber. The most adequate reaction scheme has been chosen and the kinetic parameters of the curing reaction have been determined for each elementary stage. A generalized kinetic model of the reaction has been constructed based on experimental data obtained by DTA and DSC. The selected model has been tested by solving an opposite problem—namely, constructing a series of calculated DTA and DSC curves and evaluating their compliance with the experimental data.