A New Method of Analyzing Thermogravimetric Data
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.read more
Citations
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Pyrolysis characteristics of polystyrene and polypropylene in a stirred batch reactor
Seung-Soo Kim,Seungdo Kim +1 more
TL;DR: In this paper, a thermogravimetric analysis (TGA) technique was used for pyrolysis of polystyrene (PS) and polypropylene (PP) at the heating rate of 0.5, 1.0, and 2.0°C min −1 in a stirred batch reactor.
Book
Textile Coloration and Finishing
TL;DR: In this paper, the authors discuss the laws of absorption of light by transparent and opaque objects, the Munsell and CIE color order systems, CIELab color space, and expression of color differences.
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Effect of comonomer structure on the stabilization and spinnability of polyacrylonitrile copolymers
Anqi Ju,Shanyi Guang,Hongyao Xu +2 more
TL;DR: In this article, three bifunctional comonomers were synthesized to prepare poly(acrylonitrile-co-β-methylhydrogen itaconate) [P(co-MHI)], poly(acetylacetyl-carboxylate-3-butenoic acid methyl ester] [P (co-ACBM)] which can be used as carbon fiber precursor, and the effect of comonomer structure on the stabilization of bipolymers were studied by Fourier transform infrared spectroscopy, X-ray diffraction, differential
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Thermal degradation of biodegradable edible films based on xanthan and starches from different sources
TL;DR: In this article, the FTIR spectra of the gaseous products during thermal degradation of xanthan showed a broad absorption in the 2750-3300 cm −1 region.
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Pyrolysis of banana leaves biomass: Physico-chemical characterization, thermal decomposition behavior, kinetic and thermodynamic analyses.
TL;DR: Results showed that average activation energy ranges between 70.75 and 92.12 kJ/mol for the studied isoconversional model-free methods, and pre-exponential factor obtained from Kissinger method was found to vary from 107 to 1033 s-1.
References
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Journal ArticleDOI
Kinetic Parameters from Thermogravimetric Data
A. W. Coats,J. P. Redfern +1 more
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
A New Analysis of Thermogravimetric Traces.
H. H. Horowitz,Gershon. Metzger +1 more
Journal ArticleDOI
The Application of Thermoanalytical Techniques to Reaction Kinetics: The Thermogravimetric Evaluation of the Kinetics of the Decomposition of Calcium Oxalate Monohydrate
Eli S. Freeman,Benjamin Carroll +1 more
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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