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https://doi.org/10.37358/Rev.Chim.1949

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Revista de Chimie (Rev. Chim.), Year 2017, Volume 68, Issue 11, 2514-1528

https://doi.org/10.37358/RC.17.11.5918

Petru Budrugeac, Iosif Lingvay, Alexandra Pica, Beatrice Gabriela Sbarcea

Study Regarding the Bahaviour of an Insulating Vegetable Oil Exposed to Accelerated Thermal Aging

Abstract:

The simultaneous thermal analysis method (thermogravimetry/derivative thermogravimetry + differential thermal analysis (TG/DTG+DTA) and determination of iodine index have been used for characterization of an experimental vegetable insulating oil exposed to thermal cyclic and isothermal accelerated aging in pure state and in contact with red copper. The results obtained by thermal analyses show that three main successive processes of thermo-oxidation occur at progressive heating of initial (un-aged) and thermal aged oil samples. The accelerated thermal aging determines the change of composition and thermal properties of oil, which involves the formation of sites with an oxidative reactivity greater than those from initial (un-aged) oil. It has been put in evidence the catalytic role of red copper in the process of oil oxidation. The change of composition of oil as result of thermal aging also results from the decrease of iodine index. The general mechanism of auto-oxidation of vegetable oils gives a qualitative explanation of obtained results.
Keywords:
vegetable oil for electrical insulation; thermal (TG; DTG+DTA) analysis; aging; iodine index of oil; red copper catalyst

Issue: 2017, Volume 68, Issue 11
Pages: 2514-1528
Publication date: 2017/12/15
https://doi.org/10.37358/RC.17.11.5918
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Creative Commons License
This article is published under the Creative Commons Attribution 4.0 International License
Citation Styles
Cite this article as:
BUDRUGEAC, P., LINGVAY, I., PICA, A., SBARCEA, B.G., Study Regarding the Bahaviour of an Insulating Vegetable Oil Exposed to Accelerated Thermal Aging, Rev. Chim., 68(11), 2017, 2514-1528.

Vancouver
Budrugeac P, Lingvay I, Pica A, Sbarcea BG. Study Regarding the Bahaviour of an Insulating Vegetable Oil Exposed to Accelerated Thermal Aging. Rev. Chim.[internet]. 2017 Nov;68(11):2514-1528. Available from: https://doi.org/10.37358/RC.17.11.5918


APA 6th edition
Budrugeac, P., Lingvay, I., Pica, A. & Sbarcea, B.G. (2017). Study Regarding the Bahaviour of an Insulating Vegetable Oil Exposed to Accelerated Thermal Aging. Revista de Chimie, 68(11), 2514-1528. https://doi.org/10.37358/RC.17.11.5918


Harvard
Budrugeac, P., Lingvay, I., Pica, A., Sbarcea, B.G. (2017). 'Study Regarding the Bahaviour of an Insulating Vegetable Oil Exposed to Accelerated Thermal Aging', Revista de Chimie, 68(11), pp. 2514-1528. https://doi.org/10.37358/RC.17.11.5918


IEEE
P. Budrugeac, I. Lingvay, A. Pica, B.G. Sbarcea, "Study Regarding the Bahaviour of an Insulating Vegetable Oil Exposed to Accelerated Thermal Aging". Revista de Chimie, vol. 68, no. 11, pp. 2514-1528, 2017. [online]. https://doi.org/10.37358/RC.17.11.5918


Text
Petru Budrugeac, Iosif Lingvay, Alexandra Pica, Beatrice Gabriela Sbarcea,
Study Regarding the Bahaviour of an Insulating Vegetable Oil Exposed to Accelerated Thermal Aging,
Revista de Chimie,
Volume 68, Issue 11,
2017,
Pages 2514-1528,
ISSN 2668-8212,
https://doi.org/10.37358/RC.17.11.5918.
(https://revistadechimie.ro/Articles.asp?ID=5918)
Keywords: vegetable oil for electrical insulation; thermal (TG; DTG+DTA) analysis; aging; iodine index of oil; red copper catalyst


RIS
TY - JOUR
T1 - Study Regarding the Bahaviour of an Insulating Vegetable Oil Exposed to Accelerated Thermal Aging
A1 - Budrugeac, Petru
A2 - Lingvay, Iosif
A3 - Pica, Alexandra
A4 - Sbarcea, Beatrice Gabriela
JF - Revista de Chimie
JO - Rev. Chim.
PB - Revista de Chimie SRL
SN - 2668-8212
Y1 - 2017
VL - 68
IS - 11
SP - 2514
EP - 1528
UR - https://doi.org/10.37358/RC.17.11.5918
KW - vegetable oil for electrical insulation
KW - thermal (TG
KW - DTG+DTA) analysis
KW - aging
KW - iodine index of oil
KW - red copper catalyst
ER -


BibTex
@article{RevCh2017P2514,
author = {Budrugeac Petru and Lingvay Iosif and Pica Alexandra and Sbarcea Beatrice Gabriela},
title = {Study Regarding the Bahaviour of an Insulating Vegetable Oil Exposed to Accelerated Thermal Aging},
journal = {Revista de Chimie},
volume = {68},
number = {11},
pages = {2514-1528},
year = {2017},
issn = {2668-8212},
doi = {https://doi.org/10.37358/RC.17.11.5918},
url = {https://revistadechimie.ro/Articles.asp?ID=5918}
}
 
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