Features of rubber swelling in transformer oil, according to NMR data
- Authors: Bavin R.R.1, Fursov D.I.1, Vasil’ev S.G.2,3, Tarasov V.P.2,3, Zabrodin V.A.2,3, Volkov V.I.2,3
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Affiliations:
- FTsDT Soyuz
- Institute of Problems of Chemical Physics
- Scientific Center of the Russian Academy of Sciences in Chernogolovka
- Issue: Vol 90, No 8 (2016)
- Pages: 1650-1655
- Section: Physical Chemistry of Surface Phenomena
- URL: https://journals.rcsi.science/0036-0244/article/view/168632
- DOI: https://doi.org/10.1134/S0036024416080033
- ID: 168632
Cite item
Abstract
NMR spectroscopy, NMR relaxation, and NMR with a pulsed magnetic field gradient methods are used to study the swelling of the elastomers based on ethylene-propylene rubber, butadiene-nitrile rubber, and fluororubber SKF-26 in transformer oil. Components corresponding to the fractions of oil and polymer network are identified. It is shown that the affinity of the polymers toward transformer oil displays an increase in the orderly sequence of ethylene-propylene rubber, fluororubber, and butadiene-nitrile rubber; the stability of the polymers towards carbon tetrachloride falls in the same sequence. Based on an analysis of the spin–spin relaxation time depending on the degree of swelling, it is found that fluororubber elastomers are characterized by the formation of a polymer network that prevents further sorption, In contrast, elastomer based on ethylene-propylene rubber gives no indication of the formation of a rigid polymer network.
About the authors
R. R. Bavin
FTsDT Soyuz
Email: tarasov.07@list.ru
Russian Federation, Dzerzhinsky, Moscow oblast, 140090
D. I. Fursov
FTsDT Soyuz
Email: tarasov.07@list.ru
Russian Federation, Dzerzhinsky, Moscow oblast, 140090
S. G. Vasil’ev
Institute of Problems of Chemical Physics; Scientific Center of the Russian Academy of Sciences in Chernogolovka
Email: tarasov.07@list.ru
Russian Federation, Chernogolovka, Moscow oblast, 142432; Chernogolovka, Moscow oblast, 142432
V. P. Tarasov
Institute of Problems of Chemical Physics; Scientific Center of the Russian Academy of Sciences in Chernogolovka
Author for correspondence.
Email: tarasov.07@list.ru
Russian Federation, Chernogolovka, Moscow oblast, 142432; Chernogolovka, Moscow oblast, 142432
V. A. Zabrodin
Institute of Problems of Chemical Physics; Scientific Center of the Russian Academy of Sciences in Chernogolovka
Email: tarasov.07@list.ru
Russian Federation, Chernogolovka, Moscow oblast, 142432; Chernogolovka, Moscow oblast, 142432
V. I. Volkov
Institute of Problems of Chemical Physics; Scientific Center of the Russian Academy of Sciences in Chernogolovka
Email: tarasov.07@list.ru
Russian Federation, Chernogolovka, Moscow oblast, 142432; Chernogolovka, Moscow oblast, 142432