USING THERMOANALYTICAL DATA .1. THE POWER OF KINETIC-PARAMETERS DETERMINED FROM THERMOGRAVIMETRY TO DESCRIBE THE EXPERIMENTAL BEHAVIOR OF THE SAMPLE

被引:12
作者
CEIPIDOR, UB
BUCCI, R
CARUNCHIO, V
MAGRI, AD
机构
[1] UNIV LA SAPIENZA,DIPARTIMENTO CHIM,P A MORO,I-00185 ROME,ITALY
[2] UNIV BASILICATA,IST CHIM,I-85100 POTENZA,ITALY
关键词
D O I
10.1016/0040-6031(90)80060-C
中图分类号
O414.1 [热力学];
学科分类号
摘要
Sources of misunderstandings when evaluating kinetic parameters from thermogravimetric (TG) curves are discussed. A simple method for calculating Arrhenius parameters, suitable for implementation on a PC connected to the TG apparatus, is presented. The results obtained with calcium oxalate are discussed with respect to their ability to predict thermal behaviour in several experimental conditions: agreement with experimental data is satisfactory. This is not so when using some literature-cited kinetic parameters, which fail to represent the same TG curves from which they are extracted. Suggestions are derived for design of a modern TG apparatus connected to a PC. © 1990.
引用
收藏
页码:125 / 141
页数:17
相关论文
共 17 条