Research output: Contribution to journal › Article › peer-review
Kinetics of thermal decomposition of PMMA at different heating rates and in a wide temperature range. / Korobeinichev, O. P.; Paletsky; Gonchikzhapov, M. B. et al.
In: Thermochimica Acta, Vol. 671, 01.01.2019, p. 17-25.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Kinetics of thermal decomposition of PMMA at different heating rates and in a wide temperature range
AU - Korobeinichev, O. P.
AU - Paletsky,
AU - Gonchikzhapov, M. B.
AU - Glaznev, R. K.
AU - Gerasimov, I. E.
AU - Naganovsky, Y. K.
AU - Shundrina, I. K.
AU - Snegirev, A. Yu
AU - Vinu, R.
N1 - Publisher Copyright: © 2018 Elsevier B.V.
PY - 2019/1/1
Y1 - 2019/1/1
N2 - Using the methods of differential mass-spectrometric thermal analysis (DMSTA), thermogravimetric analysis (TGA), microscale combustion calorimetry (MCC), and fast pyrolysis (FP), thermal decomposition of high-molecular-weight polymethylmetacrylate (PMMA) has been investigated in the temperature range of 315÷500 °C. Based on these data, the kinetic parameters (the activation energy, the pre-exponential factor) were obtained of a one-step pyrolysis reaction in supposition of a first-order reaction using simple mathematical fitting and an iso-conversion method. Validity of the obtained kinetic parameters was verified by comparing the experimental data on dependence of the decomposition rate on temperature in the broad range of the heating rates with the results of simulating the above dependence, using these kinetic parameters. These parameters, obtained in the broad temperature range, may be further used in numerical simulation of PMMA combustion under fire conditions and for assessing the polymer's flammability.
AB - Using the methods of differential mass-spectrometric thermal analysis (DMSTA), thermogravimetric analysis (TGA), microscale combustion calorimetry (MCC), and fast pyrolysis (FP), thermal decomposition of high-molecular-weight polymethylmetacrylate (PMMA) has been investigated in the temperature range of 315÷500 °C. Based on these data, the kinetic parameters (the activation energy, the pre-exponential factor) were obtained of a one-step pyrolysis reaction in supposition of a first-order reaction using simple mathematical fitting and an iso-conversion method. Validity of the obtained kinetic parameters was verified by comparing the experimental data on dependence of the decomposition rate on temperature in the broad range of the heating rates with the results of simulating the above dependence, using these kinetic parameters. These parameters, obtained in the broad temperature range, may be further used in numerical simulation of PMMA combustion under fire conditions and for assessing the polymer's flammability.
KW - Differential mass-spectrometric thermal analysis
KW - Fast pyrolysis
KW - Kinetics of thermal decomposition
KW - Microscale combustion calorimetry
KW - Polymethylmetacrylate
KW - Thermal decomposition
KW - Thermogravimetric analysis
KW - COMBUSTION
KW - BEHAVIOR
KW - MECHANISMS
KW - PARAMETERS
KW - POLY(METHYL METHACRYLATE)
KW - PYROLYSIS
KW - DOWNWARD FLAME SPREAD
KW - OXIDATIVE-DEGRADATION
UR - http://www.scopus.com/inward/record.url?scp=85056479052&partnerID=8YFLogxK
U2 - 10.1016/j.tca.2018.10.019
DO - 10.1016/j.tca.2018.10.019
M3 - Article
AN - SCOPUS:85056479052
VL - 671
SP - 17
EP - 25
JO - Thermochimica Acta
JF - Thermochimica Acta
SN - 0040-6031
ER -
ID: 17473474