Pyrolysis of natural rubber-cellulose composites: isoconversional kinetic analysis based on thermogravimetric data
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F24%3A10254769" target="_blank" >RIV/61989100:27360/24:10254769 - isvavai.cz</a>
Alternative codes found
RIV/61989100:27730/24:10254769
Result on the web
<a href="https://link.springer.com/article/10.1007/s10973-024-12933-y" target="_blank" >https://link.springer.com/article/10.1007/s10973-024-12933-y</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10973-024-12933-y" target="_blank" >10.1007/s10973-024-12933-y</a>
Alternative languages
Result language
angličtina
Original language name
Pyrolysis of natural rubber-cellulose composites: isoconversional kinetic analysis based on thermogravimetric data
Original language description
Despite the current growing interest in rubber composites with natural organic fillers, there is a lack of kinetic analyses that describe the decomposition of these materials during pyrolysis. For this reason, the main objective of this study was the kinetic analysis and determination of formal kinetic parameters for the pyrolytic decomposition of NR-CEL composites with different cellulose content (0, 30, 45, and 55 phr). Thermogravimetric measurements were made at heating rates of 2, 4, 6, 8, 10, and 20 degrees C min-1 in the temperature range of 20-600 degrees C. First, Friedman and KAS model-free methods were applied. Therefore, model-based methods and the model-fitting procedure were used to find the optimal multi-step kinetic model. The proposed final model consists of two parallel processes, which are kinetically independent: A -> B -> C and D -> E -> F. For each step, a kinetic triplet was calculated: the apparent activation energy, the pre-exponential factor, and the kinetic parameters of the extended empirical Prout-Tompkins model. The master plots method was used to determine the kinetic decomposition mechanism of the individual steps. It was found that step A -> B has the shape of an nth-order model, step B -> C mainly follows the diffusion model, the mechanism of step D -> E transfers from a random scission kinetics model to an nth-order model with an increasing amount of CEL, and step E -> F obeys the chain scission mechanism.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20500 - Materials engineering
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of thermal analysis and calorimetry
ISSN
1388-6150
e-ISSN
1588-2926
Volume of the periodical
149
Issue of the periodical within the volume
Neuveden
Country of publishing house
US - UNITED STATES
Number of pages
14
Pages from-to
3111-3124
UT code for WoS article
001173266500003
EID of the result in the Scopus database
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