ОДЕРЖАННЯ ТА ВЛАСТИВОСТІ СЕЧОВИННИХ МАСТИЛ  І СКЛАДОВИХ ДО НИХ НА ОСНОВІ ОЛІЙ

Oleg I. Safronov

doi:10.20535/kpisn.2020.4.227095

Vol. · Issue 4 · 2020 Jun 1, 2020 article

OBTAINING AND PROPERTIES OF COMPOSITIONS OF UREA GREASES AND THEIR COMPONENTS ON THE BASIS OF VEGETABLE OILS

Oleg I. Safronov Corresponding V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry of the National Academy of Sciences of Ukraine , Ukraine Ukraine

PublishedJun 1, 2020

PDF (Ukrainian)

KPISN 4 VOL · 4

VOL · ISS 4 · 2020 View issue

Abstract

Background. In recent years, requirements for the properties of lubricants and their components are increasing. Attention is paid to the impact of lubricants on the environment. Urea greases fully meet the high requirements for the properties of lubricants. The development of greases of this class and vegetable oil-based additives should solve the environmental problems of their use. Objective. The purpose of the paper is development of urea greases and their components using raw materials of plant origin. Methods. A number of protective additives to lubricants were obtained by epoxidation of vegetable oils and introduction of nitrogen-containing fragments on the carbonyl group and epoxy ring. Amidation of triacylglycerides of vegetable oils with ethylenediamine synthesized monoaminoamides of fatty acids of linear structure. Urea thixotropic systems are synthesized by the interaction of polyisocyanate with fatty acid monoaminoamides in petroleum oil. Synthesized additives in various quantities were introduced into the composition of the investigated products in order to check the operational properties of the finished greases. Results. The obtained greases are characterized by a high level of mechanical and colloidal stability. Their composition and chemical structure were established by a set of spectrometric methods of analysis. The upper temperature limit of application of the synthesized urea in the range of 150–200 °С is established by the method of derivatographic analysis. It is established that the combination of urea thickener and vegetable oil-based additives allows obtaining urea greases with high thermal stability, improved protective and antioxidant characteristics. The use of environmentally friendly oleochemical products in the composition of the thickener and lubricant additives improves the biodegradability of the developed grease composition. Conclusions. It is shown that the proposed series of vegetable oil transformations allows obtaining ready-made compositions of urea greases and their components using raw materials of natural origin. The obtained products have satisfactory operational properties and according to some indicators industrial analogues prevail. This allows us to recommend the developed urea oils as substitutes for commercial products.

Keywords

#vegetable oil #urea grease #additive #amidation #condensation

References

Agricultural Outlook 2018-2027. OECD/Food and Agriculture Organization of the United Nations, 2018, 50 p. doi: 10.1787/agr_outlook-2018-en
V.I. Kyrychenko et al., “Lubricants with technical oils: Tribological and tribochemical aspects”, Naukoiemni Tekhnolohii, vol. 14, no. 2, pp. 38–45, 2012. doi: 10.18372/2310-5461.14.5280
L.V. Zheleznyi et al., “Lubricants of improved quality based on oleochemical products”, in Proc. VIII Int. Conf. Problems for Nature Management, Sustainable Development and Technogenic Safety of Regions, Dnipropetrovsk, Ukraine, 2015, pp. 77–80.
V. Paronyan, Technology of Fats and Fat Substitutes. Moskow, Russia: DeLi print, 2006.
A.S. Lyadov et al., “Urea (Polyurea) Greases”, Rus. J. Appl. Chem., vol. 91, no. 6, pp. 885−894, 2018. doi: 10.1134/S1070427218060010
J.C. Root, “Polyurea Greases Thickeners, A Grease Researcherʼs Dream”, Eurogrease, March/April, pp. 16–20, 2001.
L.V. Zheleznyi, “Features of synthesis of urea thixotropic systems”, Ukrainskyi Khimichnyi Zhurnal, vol. 82, no. 12, pp. 117–122, 2016.
K. Takane et al., “Grease composition for bearing”, U.S. Patent 2016/0002558, 2016.
A.V. Nesterov et al., “Grease with increased efficiency and method of its production”, RU Patent 2524691, 2014.
A.P. Melnik et al., “Obtaining surface-active mono- and diacylglycerides by amidating flaxseed oil”, Eastern-European Journal of Enterprise Technologies, vol. 2, no. 62, pp. 21–24, 2013.
A. Adewuyi et al., “Synthesis of alkanolamide: A nonionic surfactant from the oil of Gliricidia sepium”, J. Surfactants and Detergents, vol. 15, no. 1, pp. 89–96, 2011. doi: 10.1007/s11743-011-1285-0
T.A. Patil, “Amidation of lanolin and amidation of vegetable oils for rust preventive coatings application”, Int. J. Adv. Sci. Tech. Res., vol. 6, no. 1, pp. 504–512, 2016.
O.I. Safronov et al., “Application of amidamines of vegetable oils as additives to lubricants”, Visnyk ONU. Khimiia, vol. 23, no. 3, pp. 29–39, 2018.
K. Nakanisi, Infrared Spectra and Structure of Organic Compounds. Moscow, SU: Mir, 1965. (Russian translation).
O.I. Safronov et al., “Investigation of the catalytic effect of potassium tret-butoxide in the amidation reactions of rapeseed oil acylglycerides”, KPI Sci. News, no. 4, pp. 83–88, 2019. doi: 10.20535/kpi-sn.2019.4.180743
C. Siggia and Dzh.G. Khanna, Quantitative Organic Analysis by Functional Groups. Moscow, SU: Khimiya, 1983.
O.O. Papeikin et al., “Obtaining of urea greases based on transformation products of vegetable oils”, Kataliz ta Naftokhimiia, no. 29, pp. 84-91, 2020. doi: 10.15407/kataliz2020.29.084
L.N. Pymenova, Thermography. Tomsk. Russia: Tomsk State University of Architecture and Building, 2005.

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§ 06 — Related

[1] Agricultural Outlook 2018-2027. OECD/Food and Agriculture Organization of the United Nations, 2018, 50 p. doi: 10.1787/agr_outlook-2018-en

[2] V.I. Kyrychenko et al., “Lubricants with technical oils: Tribological and tribochemical aspects”, Naukoiemni Tekhnolohii, vol. 14, no. 2, pp. 38–45, 2012. doi: 10.18372/2310-5461.14.5280

[3] L.V. Zheleznyi et al., “Lubricants of improved quality based on oleochemical products”, in Proc. VIII Int. Conf. Problems for Nature Management, Sustainable Development and Technogenic Safety of Regions, Dnipropetrovsk, Ukraine, 2015, pp. 77–80.

[4] V. Paronyan, Technology of Fats and Fat Substitutes. Moskow, Russia: DeLi print, 2006.

[5] A.S. Lyadov et al., “Urea (Polyurea) Greases”, Rus. J. Appl. Chem., vol. 91, no. 6, pp. 885−894, 2018. doi: 10.1134/S1070427218060010

[6] J.C. Root, “Polyurea Greases Thickeners, A Grease Researcherʼs Dream”, Eurogrease, March/April, pp. 16–20, 2001.

[7] L.V. Zheleznyi, “Features of synthesis of urea thixotropic systems”, Ukrainskyi Khimichnyi Zhurnal, vol. 82, no. 12, pp. 117–122, 2016.

[8] K. Takane et al., “Grease composition for bearing”, U.S. Patent 2016/0002558, 2016.

[9] A.V. Nesterov et al., “Grease with increased efficiency and method of its production”, RU Patent 2524691, 2014.

[10] A.P. Melnik et al., “Obtaining surface-active mono- and diacylglycerides by amidating flaxseed oil”, Eastern-European Journal of Enterprise Technologies, vol. 2, no. 62, pp. 21–24, 2013.

[11] A. Adewuyi et al., “Synthesis of alkanolamide: A nonionic surfactant from the oil of Gliricidia sepium”, J. Surfactants and Detergents, vol. 15, no. 1, pp. 89–96, 2011. doi: 10.1007/s11743-011-1285-0

[12] T.A. Patil, “Amidation of lanolin and amidation of vegetable oils for rust preventive coatings application”, Int. J. Adv. Sci. Tech. Res., vol. 6, no. 1, pp. 504–512, 2016.

[13] O.I. Safronov et al., “Application of amidamines of vegetable oils as additives to lubricants”, Visnyk ONU. Khimiia, vol. 23, no. 3, pp. 29–39, 2018.

[14] K. Nakanisi, Infrared Spectra and Structure of Organic Compounds. Moscow, SU: Mir, 1965. (Russian translation).

[15] O.I. Safronov et al., “Investigation of the catalytic effect of potassium tret-butoxide in the amidation reactions of rapeseed oil acylglycerides”, KPI Sci. News, no. 4, pp. 83–88, 2019. doi: 10.20535/kpi-sn.2019.4.180743

[16] C. Siggia and Dzh.G. Khanna, Quantitative Organic Analysis by Functional Groups. Moscow, SU: Khimiya, 1983.

[17] O.O. Papeikin et al., “Obtaining of urea greases based on transformation products of vegetable oils”, Kataliz ta Naftokhimiia, no. 29, pp. 84-91, 2020. doi: 10.15407/kataliz2020.29.084

[18] L.N. Pymenova, Thermography. Tomsk. Russia: Tomsk State University of Architecture and Building, 2005.

OBTAINING AND PROPERTIES OF COMPOSITIONS OF UREA GREASES AND THEIR COMPONENTS ON THE BASIS OF VEGETABLE OILS

Abstract

Keywords

References

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