Preparation and antifrictional properties of surface modified hybrid fluorine-containing silica particles / Gorbunova T. I.,Zapevalov A. Ya.,Beketov I. V.,Demina T. M.,Timoshenkova O. R.,Murzakaev A. M.,Gaviko V. S.,Safronov A. P.,Saloutin V. I. // APPLIED SURFACE SCIENCE. - 2015. - V. 326, l. . - P. 19-26.

ISSN/EISSN:

0169-4332 / 1873-5584

Type:

Article

Abstract:

Modified SiO2 particles were successfully prepared via {[}(perfluorobutyl)methyl]oxirane and {[}(perfluorobutyl)methyl]thiirane in sol-gel conditions using basic catalysis. As a result of acid catalysis non-modified nano-sized SiO2 particles were formed. Chemically modified SiO2 particles were characterized by means of FT-IR, BET, TEM, XRD- and XPS-analyses. Friction coefficients were determined at steel surface for base oil with modified SiO2 additives (5, 10 and 15 wt.\%) at 10, 20, 30 and 60 N loads. Friction was reduced most strongly in the oil mix with the lowest content of the additive. A possible mechanism of antifrictional improvement is the formation of boundary lubrication layers containing iron salts. (C) 2014 Elsevier B.V. All rights reserved.

Author keywords:

Sol-gel preparation; Surface modification; Covalent bonding; Fluorine-containing oxirane/thiirane; Antifrictional properties RAY PHOTOELECTRON-SPECTROSCOPY; SOL-GEL; TRIBOLOGICAL PROPERTIES; CONTAINING ADDITIVES; CALCARENITE STONE; FILMS; XPS; NANOPARTICLES; POLYMERS; COATINGS

DOI:

10.1016/j.apsusc.2014.11.091

Web of Science ID:

ISI:000347105600004

Соавторы в МНС:

Другие поля

Поле	Значение
Month	JAN 30
Publisher	ELSEVIER SCIENCE BV
Address	PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Language	English
EISSN	1873-5584
Keywords-Plus	RAY PHOTOELECTRON-SPECTROSCOPY; SOL-GEL; TRIBOLOGICAL PROPERTIES; CONTAINING ADDITIVES; CALCARENITE STONE; FILMS; XPS; NANOPARTICLES; POLYMERS; COATINGS
Research-Areas	Chemistry; Materials Science; Physics
Web-of-Science-Categories	Chemistry, Physical; Materials Science, Coatings \& Films; Physics, Applied; Physics, Condensed Matter
Author-Email	gorbunova@ios.uran.ru
ResearcherID-Numbers	Gaviko, Vasilii/K-4632-2013
ORCID-Numbers	Gaviko, Vasilii/0000-0002-9841-9293
Funding-Acknowledgement	Russian Foundation for Basic Research {[}13-03-00306]
Funding-Text	This work is supported by Russian Foundation for Basic Research (Grant no. 13-03-00306).
Number-of-Cited-References	55
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	51
Journal-ISO	Appl. Surf. Sci.
Doc-Delivery-Number	AX7OS