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Open AccessJournal ArticleDOI

A New Method of Analyzing Thermogravimetric Data

Takeo Ozawa
- 01 Nov 1965 - 
- Vol. 38, Iss: 11, pp 1881-1886
TLDR
In this paper, a new method of obtaining the kinetic parameters from thermogravimetric curves has been proposed, which is simple and applicable to reactions which can not be analyzed by other methods.
Abstract
A new method of obtaining the kinetic parameters from thermogravimetric curves has been proposed. The method is simple and applicable to reactions which can not be analyzed by other methods. The effect of the heating rate on thermogravimetric curves has been elucidated, and the master curve of the experimental curves at different heating rates has been derived. The applications of the method to the pyrolyses of calcium oxalate and nylon 6 have been shown ; the results are in good agreement with the reported values. The applicability of the method to other types of thermal analyses has been discussed, and the method of the conversion of the data to other conditions of temperature change has been suggested. From these discussions, the definition of the thermal stability of materials has been criticized.

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Citations
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Journal ArticleDOI

Problems of the characterization of thermoanalytical processes by kinetic parameters

TL;DR: In this paper, the authors showed that the course of non-isothermal analytical curves are strongly influenced by the experimental conditions, and therefore the sense of kinetic parameters calculated from these curves is fictitious and their determination is uncertain.
Journal ArticleDOI

Calorimetric study on the crystallization of a Se0.8Te0.2 chalcogenide glass

TL;DR: In this paper, the results of differential scanning calorimetry (DSC) at different heating rates on Se0.8Te0.2 chalcogenide glass are reported and discussed.
Journal ArticleDOI

Pyrolysis kinetic behavior and TG-FTIR-GC–MS analysis of metallised food packaging plastics

TL;DR: In this paper, the volatile products released from pyrolysis of MFPW and their kinetics by using the TG-FTIR/GC-MS system were investigated on six different types of food packaging plastics waste and its mixture.
Journal ArticleDOI

Model-free treatment of the dehydration kinetics of nedocromil sodium trihydrate.

TL;DR: The application of model-free analysis to solid-state dehydrations was investigated using the two consecutive dehydration reactions of nedocromil sodium trihydrate, showing clearly better than the model-fitting approach for understanding the details of these solid- state dehydration reactions.
Journal ArticleDOI

The thermal decomposition of some primary explosives as studied by differential scanning calorimetry

TL;DR: In this paper, the thermal decomposition of 24 compounds, all identified as potential replacements for tetrazene in stab and percussion mixes, has been studied by non-isothermal differential scanning calorimetry, and the physicochemical parameters which characterise these explosive reactions have been determined and compared with data from temperature of ignition measurements.
References
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Journal ArticleDOI

Kinetic Parameters from Thermogravimetric Data

A. W. Coats, +1 more
- 01 Jan 1964 - 
TL;DR: In this article, a thermocouple is used to measure the sample temperature in a Stanton HT-D thermobalance, the bead of which is positioned in or near the sample, depending on crucible design.
Journal ArticleDOI

Kinetic analysis of thermogravimetric data

TL;DR: The kinetic analysis of the thermogram, by use of either its exact equation or a more convenient approximation formula, is straightforward in cases of volatilization via simple kinetics as mentioned in this paper.
Journal ArticleDOI

Estimating isothermal life from thermogravimetric data

TL;DR: In this paper, the authors presented a method for estimating equivalent isothermal life from thermogravimetric data and for estimating the apparent activation energy for volatilization even though the nature of the kinetic process is unknown.
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