Mathematical modeling of temperature fields with consideration for curing kinetics of thick-walled fiberglass plate

Resumo

The kinetic parameters of curing of the binder VSK-14-2m are determined. The heat release power in the specified hardening regime in the temperature range from 100 up to 200°C is estimated on the basis of the obtained data. A mathematical model of heat transfer when forming the thick-walled fiberglass plate is proposed. Temperature differences of the outer and middle layers of the plate and temperature gradients over the plate thickness are revealed—significant temperature differences of the outer and middle layers of the plate (more than 30°C) and temperature gradients of layers (more than 7 K/mm) are observed, resulting in decrease in mechanical characteristics. Comparison of theoretical and experimental data on the temperature distribution over the plate thickness is performed. The level of correlation with each other is 99.5%.