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Estimation of kinetic parameters associated with the curing of thermoset resins. Part II: Experimental results
Author(s) -
Scott Elaine P.,
Saad Zoubeir
Publication year - 1993
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760331803
Subject(s) - thermosetting polymer , curing (chemistry) , materials science , epoxy , kinetic energy , differential scanning calorimetry , arrhenius equation , isothermal process , thermodynamics , standard deviation , composite material , mathematics , activation energy , statistics , chemistry , physics , quantum mechanics
This is a two‐part theoretical and experimental study on the estimation of the kinetic parameters associated with the curing of a thermoset epoxy resin. In Part II, the kinetic parameters associated with the curing of the bisphenol‐A‐diglycidylether/meta‐phenylenediamine (BADGE/mPDA) resin were estimated from both differential scanning calorimetry (DSC) and dielectric experimental data using a new estimation procedure described in Part I. The kinetic parameters estimated were the Arrhenius constants associated with a kinetic model used to describe the degree of cure. Isothermal experiments were performed using both experimental techniques at four different curing temperatures. The resulting estimates of the kinetic parameters were compared with results obtained from the same data using a linear regression method. The magnitude of the confidence intervals of the estimated parameters and the standard deviation of the model (based on the residual errors between predicted values of the degree of cure and experimental values) were used as criteria in the comparison of the results. From this comparison, it was concluded that the parameters estimated from DSC data using the new estimation procedure provided the estimates with the least variability and, consequently, the smallest errors associated with the kinetic model.