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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

Review of polymer oxidation and its relationship with materials performance and lifetime prediction

TL;DR: In this article, the authors present a brief status report on the important aspects of polymer oxidation and focus on the complexity of thermally accelerated polymer aging phenomena, the importance of DLO, property correlations, kinetic models, TGA approaches, and a framework for predictive aging models are briefly discussed.
Journal ArticleDOI

Cure kinetics characterization and monitoring of an epoxy resin using DSC, Raman spectroscopy, and DEA

TL;DR: Hardis et al. as mentioned in this paper describe the characterization and monitoring of an Epoxy Resin for thick composite structures. But they do not discuss the properties of the epoxy resins.
Journal ArticleDOI

A systematic study of the kinetics of lignin pyrolysis

TL;DR: In this paper, the pyrolysis kinetics of four types of lignin (Alkali, Hydrolytic, Organosolv and Klason) were investigated using thermogravimetric analysis (TGA).
Journal ArticleDOI

Kinetic analysis of complex solid-state reactions. A new deconvolution procedure.

TL;DR: A method that involves the deconvolution of the individual processes from the overall differential kinetic curves obtained under linear heating rate conditions, followed by the kinetic analysis of the discrete processes using combined kinetic analysis, is proposed.
Journal ArticleDOI

Mechanism and kinetics of the stabilization reactions of itaconic acid-modified polyacrylonitrile

TL;DR: The structural evolution and thermal behavior of polyacrylonitrile (PAN) homopolymer and copolymer [P(AN-IA)] containing about 1.5 mol% itaconic acid (IA) during stabilization in air were studied by Fourier transform infrared (FTIR) spectroscopy, differential scanning calorimetry (DSC) and thermogravimetry as discussed by the authors.
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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