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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

Cure behaviors and mechanical properties of carbon fiber-reinforced nylon6/epoxy blended matrix composites

TL;DR: In this paper, the composition effects of a nylon6 and epoxy blend system on the cure behaviors and mechanical properties of carbon fiber-reinforced nylon6/epoxy composites were investigated.
Journal ArticleDOI

Kinetics of thermal degradation and thermal oxidative degradation of poly(p-dioxanone)

TL;DR: In this article, the kinetics of the thermal degradation and thermal oxidative degradation of poly(p-dioxanone) (PPDO) were investigated by thermogravimetric analysis Kissinger method, Friedman method, Flynn-Wall-Ozawa method and Coats-Redfern method.
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Study of the thermooxidative degradation kinetics of poly(tetrafluoroethene) using iso-conversional calculation procedure

TL;DR: In this article, the authors compared six calculation procedures based on single TG curves and iso-conversional method, as well as 27 mechanism functions for the PTFE degradation process.
Journal ArticleDOI

Improved thermo-mechanical properties by the addition of natural fibres in starch-based sustainable biocomposites

TL;DR: In this article, sustainable biocomposites based on thermoplastic starch copolymers (Mater-Bi KE03B1) and biofibres (cotton, hemp and kenaf) were prepared and characterised in terms of their thermo-mechanical and morphological properties.
Journal ArticleDOI

Fuel production from waste polystyrene via pyrolysis: Kinetics and products distribution.

TL;DR: Temperature of 410 °C and exposure time of 70 min are the best conditions for maximum fuel oil production and a comparison of the composition of pyrolysis oil with standard parameters of diesel, gasoline and kerosene oil suggested that pyrofullysis oil from polystyrene waste holds great promise for replacing fuel oil.
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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