Results 21 to 30 of about 866 (174)

Thermogravimetric Analysis and Kinetic Modeling of the AAEM-Catalyzed Pyrolysis of Woody Biomass

open access: yesMolecules, 2022
This work analyzes the catalytic effects induced by alkali and alkaline earth metals (AAEMs) on pyrolysis kinetics. To this end, thermogravimetric analyses (TGA) were carried out with raw beech wood and samples impregnated with NaCl, KCl and MgCl2 at ...
Wei Wang   +3 more
doaj   +1 more source

Some Peculiarities of the Isoconversional Methods

open access: yesFunGlass School 2018/part 2 : Book of abstracts., 2018
{"references": ["P.\u0160imon, J.Therm.Anal.Calorim. 76 (2004) 123-132: Isoconversional methods: Fundamentals, meaning and application.", "P.\u0160imon, J.Therm.Anal.Calorim. 82 (2005) 651-657: Considerations on the single-step kinetics approximation.", "P.\u0160imon, P.Thomas, T.Dubaj, Z.Cibulkov\u00e1, A.Peller, M.Veverka, J Therm Anal Calorim 115 ...
Šimon, Peter   +3 more
openaire   +2 more sources

Isothermal and Isoconversional Modeling of Solid-State Nitroso Polymerization

open access: yesThe Journal of Physical Chemistry A, 2020
The solid-state formation of azodioxide polymers from aromatic dinitroso compounds with different spacer groups was used as a model reaction for a comprehensive analysis that included bulk-based, mechanistic, and isoconversional kinetic methods. Dinitroso species were prepared in situ from azodioxides by UV cleavage under cryogenic conditions, after ...
Petar Bibulić   +4 more
openaire   +4 more sources

Curing Characterisation of Spruce Tannin-based Foams using the Advanced Isoconversional Method

open access: yesBioResources, 2014
The curing kinetics of foam prepared from the tannin of spruce tree bark was investigated using differential scanning calorimetry (DSC) and the advanced isoconversional method.
Matjaž Čop   +3 more
doaj   +1 more source

Kinetic Analysis of the Thermal Decomposition of Polymer-Bonded Explosive Based on PETN: Model-Fitting Method and Isoconversional Method

open access: yesAdvances in Materials Science and Engineering, 2020
This work investigates kinetics and thermal decomposition behaviors of pentaerythritol tetranitrate (PETN) and two polymer-bonded explosive (PBX) samples created from PETN (named as PBX-PN-85 and PBX-PP-85) using the vacuum stability test (VST) and ...
Trung Toan Nguyen   +3 more
doaj   +1 more source

Role of Functional Groups in the Monomer Molecule on the Radical Polymerization in the Presence of Graphene Oxide. Polymerization of Hydroxyethyl Acrylate under Isothermal and Non-Isothermal Conditions

open access: yesMolecules, 2022
Functional groups in a monomer molecule usually play an important role during polymerization by enhancing or decreasing the reaction rate due to the possible formation of side bonds.
Ioannis S. Tsagkalias   +1 more
doaj   +1 more source

Kissinger Method in Kinetics of Materials: Things to Beware and Be Aware of

open access: yesMolecules, 2020
The Kissinger method is an overwhelmingly popular way of estimating the activation energy of thermally stimulated processes studied by differential scanning calorimetry (DSC), differential thermal analysis (DTA), and derivative thermogravimetry (DTG ...
Sergey Vyazovkin
doaj   +1 more source

Measurement and Evaluation of Experimental Data for Modelling Thermal Decomposition of Solid Materials

open access: yesChemical Engineering Transactions, 2012
This paper studies a method of estimating the kinetic parameters for wood thermal decomposition as an input for pyrolysis modelling. Samples of birch and pine wood were firstly examined using Thermogravimetric analysis (TG) both in oxidative (air) and ...
L. Hasalová, J. Ira, M. Jahoda
doaj   +1 more source

Iso-conversional kinetic analysis of quaternary glass re-crystallization

open access: yesHeliyon, 2017
Iso-conversional kinetic analysis is popular in scientific community for analyzing solid-state reactions (e.g., glass/amorphous and amorphous/crystal phase transformations, re-crystallization etc).
Ankita Srivastava   +2 more
doaj   +1 more source

Kinetic studies on thermal degradation of natural rubber/butyl rubber

open access: yesMajalah Kulit, Karet, dan Plastik, 2018
The knowledge of how rubber breakdown on heating in oxidative environment is important in processing and using the material. In the present work, we performed thermogravimetric analysis and utilized three iso-conversional kinetic models to get apparent ...
Muhammad Sholeh   +2 more
doaj   +1 more source

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