Journal ArticleDOI
Kinetics of thermal degradation of char-forming plastics from thermogravimetry. Application to a phenolic plastic
TLDR
In this article, a technique was devised for obtaining rate laws and kinetic parameters which describe the thermal degradation of plastics from TGA data, based on the inter-comparison of experiments which were performed at different linear rates of heating.Abstract:
A technique was devised for obtaining rate laws and kinetic parameters which describe the thermal degradation of plastics from TGA data. The method is based on the inter-comparison of experiments which were performed at different linear rates of heating. By this method it is possible to determine the activation energy of certain professes without knowing the form of the kinetic equation. This technique was applied to fiberglass-reinforced CTL 91-LD phenolic resin, where the rate law - (1/we)(dw/dt) = 1018e−55,000/RT [(w - wf)/w0,]5, nr.−1, was found to apply to a major part of the degradation. The equation was successfully tested by several techniques, including a comparison with constant temperature data that were available in the literature. The activation energy was thought to be correct within 10 kcal.read more
Citations
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Biomass pyrolysis kinetics: A comparative critical review with relevant agricultural residue case studies
TL;DR: A critical review of kinetic models and mathematical approximations currently employed in solid state thermal analysis is provided and analysis of thermal decomposition data obtained from two agricultural residues, nutshells and sugarcane bagasse reveals the inherent difficulty and risks involved in modeling heterogeneous reaction systems.
Journal ArticleDOI
Isoconversional Kinetic Analysis of Thermally Stimulated Processes in Polymers
TL;DR: Isoconversional analysis of polymer kinetics has been studied extensively over the past decade as discussed by the authors and has been applied to a wide range of applications, including thermal degradation, crosslinking, glass transition, and glass and melt crystallization.
Journal ArticleDOI
Modification of the integral isoconversional method to account for variation in the activation energy
TL;DR: Vyazovkin et al. as discussed by the authors used an integration technique that properly accounts for the variation in the activation energy, which was implemented as a modification of the earlier proposed advanced isoconversional method and applied to the thermal decomposition of calcium oxalate monohydrate and ammonium nitrate.
Journal ArticleDOI
A comprehensive review on the pyrolysis of lignocellulosic biomass
TL;DR: In this paper, pyrolysis of lignocellulosic biomass has been addressed, focusing primarily on the ideal feedstock, technologies, reactors, and properties of the end product.
Journal ArticleDOI
Solution Combustion Synthesis of Nanoscale Materials
TL;DR: This Review focuses on the analysis of new approaches and results in the field of solution combustion synthesis (SCS) obtained during recent years, emphasizing the chemical mechanisms that are responsible for rapid self-sustained combustion reactions.
References
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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
The kinetics of the thermal degradation of polystyrene and polyethylene
David A. Anderson,Eli S. Freeman +1 more
TL;DR: The nonisothermal method of Freeman and Carroll was used to investigate the kinetics of the thermal degradation of polyethylene and polystyrene and the results of this investigation are compared with the kinetic parameters reported by other investigators as mentioned in this paper.
Journal ArticleDOI
The kinetics of the thermal degradation of the synthetic styrenated polyester, laminac 4116
David A. Anderson,Eli S. Freeman +1 more
TL;DR: In this paper, the authors investigated the thermal decomposition of polyester, Laminac 4116, at atmospheric pressure by means of a continuous recording thermobalance and by differential thermal analysis.
Journal ArticleDOI
LXXX. Some new values for the exponential integral
C.A. Coulson,W.E. Duncanson +1 more