High-Temperature Thermodestruction Analysis of a Polyphenylene-Sulfide-Based Composite by Thermogravimetry

Thermodestruction of a polyphenylene-sulfide-based composite at temperatures up to 800°C was studied by dynamic thermogravimetric analysis. Activation energies Еа were determined using a nonlinear regression analysis within the framework of a kinetic model of the process with two noninterrelated noninteracting stages. Estimates of Еа by this and other methods were compared with the value of Еа during destruction in the isothermal regime.