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2017/1
Research of thermal oxidation and mechanical stability of low molecular weight polyisobuty-lenes in petroleum base and synthetic oils
Technical sciences

Authors: Igor R. TATUR (b. 1956) graduated from Gubkin Moscow Institute of Petrochemical and Gas Industry in 1979. He is PhD, Associate Professor of the Dept. of сhemistry and technology of lubricants and chemmotology of Gubkin Russia State University (National Research University) of Oil and Gas. He is author of 98 articles, 25 patents, 2 tutorial and 1 monograph.
E-mail: igtatur@yandex.ru
Ekaterina S. SEVAST’YANOVA graduated from the Gubkin Russia State Oil and Gas University in 2014. She is PROACT Field Engineer II in Schlumberger Ltd. E-mail: kateseva@gmail.com
Аleksey V. LEONTYEV (b. 1988) graduated from Gubkin Russian State University of Oil and Gas in 2013. He is post-graduate student of the Department of Chemistry and Technology of Lubricants and Chemmotology of Gubkin Russia State University (National Research University) of Oil and Gas. He is Research Fellow in OOO United Research and Development Center (OOO „RN-CIR”). He is author of more than 15 publications. E-mail: leontievaleksey@gmail.com
Vladimir G. SPIRKIN (b. 1937) graduated from the Military Rocket Forces Academy named after Peter the Great in 1959. He is D.Sc., Professor of the Dept. of Chemistry and Technology of Lubricants and Chemmotology of Gubkin Russia State University (National Research University) of Oil and Gas. He is author more than 350 publications, 10 books and monographs, 35 patents.
E-mail: vgspirkin@mail.ru
Boris P. HOLODOV (b. 1945) graduated from Gubkin Moscow Institute of Petrochemical and Gas Industry in 1968. He is Doctor of Technical Sciences, Assistant Professor the Dept. of Chemistry and Technology of Lubricants and Chemmotology of Gubkin Russia State University (National Research University) of Oil and Gas. He is author of more than 40 publications.
E-mail: b.kholodov@mail.ru

Abstract: Termal oxidation and mechanical stability of polyisobutylenes (PIB) with molecular weights of 30 000 and 60 000 in petroleum base (industrial and isoparaffin) and synthetic (polyalphaolifin) oils is investigated. Thermaloxidative stability of PIB solutions was studied using PAPOK-R at the STO Gazprom 2-2.4-134-2007 and PIB solutions stability to mechanical stress was measured by ultrasonic treatment using UZDN-2T. It is found that PIB with molecular weights of 30 000 and 60 000 in the I-20A industrial oil in concentrations of 3,5-9,0 % by weight have high thermal oxidation stability. PIB in PAO-10 oil show minimum thermal oxidation stability. Аn anomaly of viscosity and thermal oxidation stability of the 20A oil and PAO-10 oil mixture containing PIB with molecular weight of 30 000 and 60 000 at concentration of 9 % by weight with PAO concentration of 10 — 30-40 % by weight is revealed. Sonicated PIB solutions stability depending on the composition of the base oil are arranged in series: oil-20A < PAO-10 oil < oil VHVI-4

Index UDK: 665.7.038.64

Keywords: viscosity modifier, condensed oils, polyisobutylene, polymers, thermal oxidation stability, mechanical stability of polymers, polialfaolifin and iso paraffin oils, sonication

Bibliography:
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