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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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Investigating thermal degradation, crystallization and surface behavior of l-lactide, glycolide and trimethylene carbonate terpolymers used for medical applications

TL;DR: In this article, the surface properties of copolymers based on l -lactide, glycolide and trimethylene carbonate copolymer were investigated, showing that the contact angle of DDI water droplet on the polymer surface becomes smaller than that without TMC, vindicating inherent softness and stronger hydrophilic structure in the terpolymer.
Journal ArticleDOI

Pyrolysis Kinetics and Thermodynamics of Typical Plastic Waste

TL;DR: In this paper, some alternatives that have been developed to manage plastic wastes are recycling and the energy-recovery method, and it is important to note that these alternatives are not suitable for reuse.
Journal ArticleDOI

Influence of electrospinning parameters on poly(hydroxybutyrate) electrospun membranes fiber size and distribution

TL;DR: In this article, the influence of processing parameters on fiber size and distribution was systematically studied, and it was observed that an increase of tip inner diameter promotes a decrease of the fiber average size and a broader distribution.
Journal ArticleDOI

Non-flammable thiazole-functional monobenzoxazines: Synthesis, polymerization, thermal and thermomechanical properties, and flammability studies

TL;DR: In this paper, a poly(PH-at) has been synthesized, which is characterized with proton and carbon nuclear magnetic resonance spectroscopy (1H NMR, 13C NMR), and the thermal properties of the polymer are tested with thermogravimetric analysis.
Journal ArticleDOI

Isoconversional kinetic analysis of novolac-type lignophenolic resins cure

TL;DR: In this article, the authors compared the cure kinetics of two lignin-based novolac-type phenolic resins with those from a commercial no-volac system.
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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