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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

Thermal stability and degradation kinetics of poly(methyl methacrylate)/layered copper hydroxy methacrylate composites

TL;DR: In this paper, an additive 3% by weight of the CHM additive using solution blending resulted in a significant increment (∼45°C) in TGA T50, the temperature at which 50% of the original polymeric mass is lost.
Journal ArticleDOI

A kinetic study of non-isothermal decomposition process of anhydrous nickel nitrate under air atmosphere

TL;DR: In this article, the authors investigated the non-isothermal decomposition process of anhydrous nickel nitrate under air atmosphere and used the composite differential method I was used for checking the established reaction model.
Journal ArticleDOI

Effects of maleated ethylene propylene diene rubber (EPDM) on the thermal stability of pure polyamides, and polyamide/EPDM and polyamide/poly(ethylene terephthalate) blends: kinetic parameters and reaction mechanism

TL;DR: In this paper, the effects of maleated ethylene propylene diene (EPDM-g-MA) on the thermal stability of polyamide and polyamide/poly(ethylene terephthalate) (PET) systems were studied by thermogravimetric analysis and infrared spectroscopy in nitrogen.
Journal ArticleDOI

A degradation study of waterborne polyurethane based on TDI

TL;DR: In this paper, the thermal degradation of synthetic waterborne polyurethane (PU) based on toluenediisocyanate (TDI) was investigated by pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) and thermogravimetry (TG).
Journal ArticleDOI

A new integral method for the kinetic analysis of thermogravimetric data

TL;DR: In this article, a new integral method was proposed for the determination of activation energies, preexponential factors and reaction orders from thermogravimetric data, using data from pairs of TG curves produced at different heating rates.
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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