Application of molybdenum complexes of 1-aryl-2,5-dithiohydrazodicarbonamides as extreme pressure lubricant additives

Rastogi, Rajesh P.; Yadav, Manoj Kumar; Bhattacharya, A.

doi:10.1016/s0043-1648(01)00878-x

Cited by 57 publications

(38 citation statements)

References 7 publications

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“…The mechanisms of friction reduction and anti-wear of nanoparticles in lubricants have been widely investigated, and can be depicted as follows: rolling effect [204][205][206], protective film [207][208][209][210], mending effect [211] and polishing effect [212] (Fig. 15).…”

Section: Mechanism Of Nanoparticlesmentioning

confidence: 99%

A review of recent developments of friction modifiers for liquid lubricants (2007–present)

Zheng-lin¹,

2014

Current Opinion in Solid State and Materials Science

389

208

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Section: Mechanism Of Nanoparticlesmentioning

confidence: 99%

A review of recent developments of friction modifiers for liquid lubricants (2007–present)

Zheng-lin¹,

2014

Current Opinion in Solid State and Materials Science

389

208

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“…Anticorrosion properties of these ligands have also been recognized for the corrosion of copper in aqueous chloride solutions [3]. Some 1-aryl-2,5-dithiohydrazodicarbonamides and their molybdenum and tungsten complexes have been found to act as excellent extreme-pressure lubrication additives [4] and corrosion inhibitors for mild steel in 1.0 N sulfuric acid [5]. Biocidal activity of organotins is well recognized [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Triphenyltin (IV) and Dibutyltin (IV) Complexes of 1-Aryl-2,5-dithiohydrazodicarbonamides and Their Characterization

Rastogi

Singh

Jaiswal

2014

Journal of Applied Chemistry

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Organotin complexes of the types Ph 3 SnL and Bu 2 SnL [where Ph = phenyl and Bu = butyl; HL = 1-phenyl-2,5-dithiohydrazodicarbonamide (HPhthc), 1-benzyl-2,5-dithiohydrazodicarbonamide (Hbzthc), 1-(4-ethoxyphenyl)-2,5-dithiohydrazodicarbonamide (HEtOPhthc)] have been prepared. Molar conductance studies demonstrate the nonionic behavior of the complexes. The 1 H and 13 C nuclear magnetic resonance and FAB mass spectra of the complexes are consistent with the proposed stoichiometry. Infrared spectra suggest an anionic bidentate coordinating behavior of the ligands.

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“…A variety of mechanisms have been proposed to explain the lubrication enhancement of the nanoparticlesuspended lubricating oil (i.e., nano-oil), including the ball bearing effect [1][2][3], protective film [4][5][6][7][8], mending effect [9] and polishing effect [10]. These mechanisms can be mainly classified into two groups, as shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

Understanding the Role of Nanoparticles in Nano-oil Lubrication

et al. 2009

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A disc-on-disc type tester was used to examine the role of fullerene nanoparticles dispersed in a mineral oil-based lubricant. In the friction test, the friction coefficient of the disc specimen immersed in the nano-oil was significantly lower than that of the disc specimen immersed in the mineral oil. This suggests that the nanoparticles dispersed in mineral oil played the important role in the lubrication enhancement of nano-oil. A series of experiments in this study were carried out to delineate the two effects [i.e., direct effect (e.g., rolling/sliding/filming) and surface enhancement effect (e.g., mending/polishing)] of nanoparticles for nano-oil-based lubrication enhancement. The disc specimens immersed in the nano-oils during the friction test was removed, and then they were re-immersed in new mineral oil for an additional friction test. The direct and surface enhancement effect of nanoparticles was then visualised by the evolution of the friction coefficient of the disc specimen immersed in the mineral-and nano-oil. The results showed that the direct effect of nanoparticles was much more dependent on the magnitude of the applied normal load than the surface enhancement effect.

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Application of molybdenum complexes of 1-aryl-2,5-dithiohydrazodicarbonamides as extreme pressure lubricant additives

Cited by 57 publications

References 7 publications

A review of recent developments of friction modifiers for liquid lubricants (2007–present)

A review of recent developments of friction modifiers for liquid lubricants (2007–present)

Synthesis of Triphenyltin (IV) and Dibutyltin (IV) Complexes of 1-Aryl-2,5-dithiohydrazodicarbonamides and Their Characterization

Understanding the Role of Nanoparticles in Nano-oil Lubrication

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