ESTIMATION OF THERMAL-STABILITY OF PHENOL STABILIZERS BY MEANS OF THERMOGRAVIMETRIC ANALYSIS

A new method was developed for evaluation of the results of thermal an aylsis of phenol stabilizers used for the thermal stabilization of lig ht-coloured polymers. The integral observed decomposition temperature obtained by using Doyle's method from the thermogravimetric curves was used as a basis of approach. For this purpose, the computational prog ram TERMOGRAF for PC/AT is suggested. It is considered that the integr al observed decomposition temperature is a more reliable and reproduci ble characteristic of thermal stability than the approach based on the temperature of beginning of decomposition.