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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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Evaluation of crystallization kinetics of glasses by non-isothermal analysis

TL;DR: Based on Johnson-Mehl-Avrami transition equation, a new non-isothermal method for evaluating the crystallization kinetics of glasses is proposed in this article, where an equation relating the kinetic parameters of the crystallisation activation energy, E, and the frequency factor, v, to the inflection point temperature, Tf and the heating rate, β, of differential thermal analysis (DTA) experiment is established.
Journal ArticleDOI

Kinetic analysis of non-catalytic and Mn-catalysed combustion of diesel soot surrogates

TL;DR: In this article, the kinetics of the combustion process of two carbon blacks, selected as diesel soot surrogates, were investigated by dynamic thermogravimetry in an excess of air.
Journal ArticleDOI

Synthesis, characterization, and properties of novel ladderlike phosphorus-containing polysilsesquioxanes

TL;DR: In this paper, ladder-like polysilsesquioxanes that contain phosphorus were successfully synthesized by the sol-gel method and characterized by Fourier transform infrared spectroscopy, 29 Si NMR, and X-ray diffraction.
Journal ArticleDOI

Study of curing kinetics of anhydride cured petroleum-based (DGEBA) epoxy resin and renewable resource based epoxidized soybean oil (ESO) systems catalyzed by 2-methylimidazole

TL;DR: The non-isothermal curing kinetics of diglycidyl ether of bisphenol-A (DGEBA) and bio-based epoxy resin (ESO) both cured with methyl hexahydrophthalic anhydride (MHHPA) curing agent in the presence of 2-methylimidazole as catalyst (2-MI) was investigated using differential scanning calorimetry (DSC) at three different heating rates 5, 10, 15 -C/min this paper.
Journal ArticleDOI

The Effect of Boron-Containing Layered Hydroxy Salt (LHS) on the Thermal Stability and Degradation Kinetics of Poly (Methyl Methacrylate)

TL;DR: A boron-containing layered hydroxy salt (LHS), ZHTMDBB, was prepared and compounded with a highly flammable synthetic polymer, poly (methyl methacrylate) {PMMA}, via melt blending: the composite structure was intercalated with poor dispersion.
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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