The comparative kinetic analysis of non-isothermal degradation process of acrylonitrile-butadiene and ethylene-propylene-diene rubber compounds. Part I
Само за регистроване кориснике
2012
Аутори
Janković, Bojan Ž.Marinović-Cincović, Milena
Jovanović, Vojislav
Samaržija-Jovanović, Suzana
Marković, Gordana
Чланак у часопису
Метаподаци
Приказ свих података о документуАпстракт
The non-isothermal degradation processes of acrylonitrile-butadiene and ethylene-propylene-ethylidenenorbornene rubber compounds were investigated with thermogravimetric analysis (TGA) and derivative thermogravimetry (DTG), using the different calculation procedures. It was found that the acrylonitrile-butadiene (NBR) and the ethylene-propylene-diene (EPDM) rubber degradations represent the complex processes, where there are conversion regions with a constant value of the apparent activation energy (E-a). It was established that the NBR and EPDM degradation under nitrogen atmosphere can be described by the one and a half order (n = 3/2) and the first order (n = 1) reaction kinetics, respectively. A linear dependence was observed between In A and E-a at every heating rate, known as the artificial compensation effect (art-CE). It was found that the calculated differential conversion curves are in good agreement with the experimental ones, for each of the observed heating rates, thus conf...irming the correctness of the obtained reaction models for the NBR and EPDM degradation processes. (C) 2011 Elsevier B.V. All rights reserved.
Кључне речи:
NBR / EPDM / Kinetics / Apparent activation energy / Artificial compensation effectИзвор:
Thermochimica Acta, 2012, 543, 295-303Финансирање / пројекти:
- Материјали редуковане димензионалности за ефикасну апсорпцију светлости и конверзију енергије (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45020)
- Вишескално структурирање полимерних нанокомпозита и функционалних материјала применом различитих прекурсора (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45022)
- Динамика нелинеарних физичкохемијских и биохемијских система са моделирањем и предвиђањем њихових понашања под неравнотежним условима (RS-MESTD-Basic Research (BR or ON)-172015)
DOI: 10.1016/j.tca.2011.11.034
ISSN: 0040-6031
WoS: 000307419500041
Scopus: 2-s2.0-84863727006
Колекције
Институција/група
VinčaTY - JOUR AU - Janković, Bojan Ž. AU - Marinović-Cincović, Milena AU - Jovanović, Vojislav AU - Samaržija-Jovanović, Suzana AU - Marković, Gordana PY - 2012 UR - https://vinar.vin.bg.ac.rs/handle/123456789/4989 AB - The non-isothermal degradation processes of acrylonitrile-butadiene and ethylene-propylene-ethylidenenorbornene rubber compounds were investigated with thermogravimetric analysis (TGA) and derivative thermogravimetry (DTG), using the different calculation procedures. It was found that the acrylonitrile-butadiene (NBR) and the ethylene-propylene-diene (EPDM) rubber degradations represent the complex processes, where there are conversion regions with a constant value of the apparent activation energy (E-a). It was established that the NBR and EPDM degradation under nitrogen atmosphere can be described by the one and a half order (n = 3/2) and the first order (n = 1) reaction kinetics, respectively. A linear dependence was observed between In A and E-a at every heating rate, known as the artificial compensation effect (art-CE). It was found that the calculated differential conversion curves are in good agreement with the experimental ones, for each of the observed heating rates, thus confirming the correctness of the obtained reaction models for the NBR and EPDM degradation processes. (C) 2011 Elsevier B.V. All rights reserved. T2 - Thermochimica Acta T1 - The comparative kinetic analysis of non-isothermal degradation process of acrylonitrile-butadiene and ethylene-propylene-diene rubber compounds. Part I VL - 543 SP - 295 EP - 303 DO - 10.1016/j.tca.2011.11.034 ER -
@article{ author = "Janković, Bojan Ž. and Marinović-Cincović, Milena and Jovanović, Vojislav and Samaržija-Jovanović, Suzana and Marković, Gordana", year = "2012", abstract = "The non-isothermal degradation processes of acrylonitrile-butadiene and ethylene-propylene-ethylidenenorbornene rubber compounds were investigated with thermogravimetric analysis (TGA) and derivative thermogravimetry (DTG), using the different calculation procedures. It was found that the acrylonitrile-butadiene (NBR) and the ethylene-propylene-diene (EPDM) rubber degradations represent the complex processes, where there are conversion regions with a constant value of the apparent activation energy (E-a). It was established that the NBR and EPDM degradation under nitrogen atmosphere can be described by the one and a half order (n = 3/2) and the first order (n = 1) reaction kinetics, respectively. A linear dependence was observed between In A and E-a at every heating rate, known as the artificial compensation effect (art-CE). It was found that the calculated differential conversion curves are in good agreement with the experimental ones, for each of the observed heating rates, thus confirming the correctness of the obtained reaction models for the NBR and EPDM degradation processes. (C) 2011 Elsevier B.V. All rights reserved.", journal = "Thermochimica Acta", title = "The comparative kinetic analysis of non-isothermal degradation process of acrylonitrile-butadiene and ethylene-propylene-diene rubber compounds. Part I", volume = "543", pages = "295-303", doi = "10.1016/j.tca.2011.11.034" }
Janković, B. Ž., Marinović-Cincović, M., Jovanović, V., Samaržija-Jovanović, S.,& Marković, G.. (2012). The comparative kinetic analysis of non-isothermal degradation process of acrylonitrile-butadiene and ethylene-propylene-diene rubber compounds. Part I. in Thermochimica Acta, 543, 295-303. https://doi.org/10.1016/j.tca.2011.11.034
Janković BŽ, Marinović-Cincović M, Jovanović V, Samaržija-Jovanović S, Marković G. The comparative kinetic analysis of non-isothermal degradation process of acrylonitrile-butadiene and ethylene-propylene-diene rubber compounds. Part I. in Thermochimica Acta. 2012;543:295-303. doi:10.1016/j.tca.2011.11.034 .
Janković, Bojan Ž., Marinović-Cincović, Milena, Jovanović, Vojislav, Samaržija-Jovanović, Suzana, Marković, Gordana, "The comparative kinetic analysis of non-isothermal degradation process of acrylonitrile-butadiene and ethylene-propylene-diene rubber compounds. Part I" in Thermochimica Acta, 543 (2012):295-303, https://doi.org/10.1016/j.tca.2011.11.034 . .