Computer-determined kinetic parameters from TG curves. Part XIII

Autor: L.Z. Pollara, Salvatore S. Stivala, Leo Reich
Rok vydání: 1985
Předmět:
Zdroj: Thermochimica Acta. 90:189-193
ISSN: 0040-6031
DOI: 10.1016/0040-6031(85)87096-9
Popis: Several procedures have been previously reported whereby non-isothermal TG (NITG) data can be analyzed for values of the activation energy ( E ) independent of values of the reaction order ( n ). In this paper, other expressions will be derived for the estimation of E which are essentially independent of n -values and are valid at relatively low degrees of conversion. These equations are applied to NITG data for a siloxane and teflon, as well as for theoretical data. The resulting computer and graphical procedures are both utilized to estimate E -values. Limitations of the methods are also mentioned.
Databáze: OpenAIRE