Microwave-assisted acid decomposition and oil-in-water emulsification were evaluated as sample pretreatment procedures to determine Al, Ba, Mo, Si and V in lubricating oils by high-resolution continuum source flame atomic absorption spectrometry (HR-CS FAAS). Average recoveries of Al, Ba and V in oil digests (107, 103 and 101%) were close to those obtained for emulsions prepared in kerosene med...

The results of research on the process applying lubricating coatings are presented in this work. For purpose, plastic greases were used, which base oil is perfluoropolyether (PFPE) and thickener poly(tetrafluoroethylene) (PTFE). Due to their consistency, these materials classified into different classes according National Lubricating Grease Institute (NLGI). was carried out using a time-pressur...

It is of considerable significance to develop efficient and environmentally friendly machinery lubricant additives because the increasing depletion petrochemical resources severe environmental problems. Herein, we proposed a facile strategy synthesize multifunctional vegetable oil-based via lignin derivative vanillin coupled amine diethyl phosphite produce lubricating additive with both extreme...

Hybrid nano-materials offer potential scope for an increasing numerous novel applications when engineered to deliver availably functional properties. In the present study, the SiO2/MoS2 hybrid nanoparticles with different mass ratios were employed as lubricant additives in the base oil, and their tribological properties were evaluated using a reciprocating ball-on-plate tribometer for magnesium...

Lubrication oil plays a decisive role to maintain a reliable and efficient operation of gear transmissions. Many offline methods have been developed to monitor the quality of lubricating oils. This work focus on developing a novel online method to diagnose oil degradation based on the measurements from power supply system to the gearbox. Experimental studies based on an 10kW industrial gearbox ...

The investigation of Lubricated Friction and Wear is an extended study. The aim of this study is to investigate the friction and wear characteristics of Jatropha oil based biolubricant by using Cygnus Wear Testing Machine under load of 30N, a high rotating speed of 2000 rpm and one hour operation time. In this study, SEA 40 was used as a reference base lubricant. As a biolubricant various blend...

The preparation, by a freeze-thaw method, of new graphite/isobutylene-isoprene rubber (IIR) sorbents for oil and organic liquid is described. Graphite was expected to improve the adsorption properties. The cryogels were prepared by solution crosslinking IIR rubber in the presence of graphite in benzene at various temperatures, using sulfur monochloride as the crosslinker, and characterized by S...

Lubricating oil is known as "the blood to maintain the normal operation of machinery", and additives are an indispensable important part lubricating oil. In this paper, Polymer-based Composite Nano-additive (PCNA) suitable for armored vehicle engine was developed, physical chemical properties containing were carried out. The results showed that adding appropriate amount (3 vol.%) could improve ...