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PbS nanoparticles of average diameter about 5 nm, which were surface-modified with dialkyldithiophosphate (DDP), were prepared by chemical synthesis. The synthesized DDP-coated PbS nanoparticles were characterized by infrared spectroscopy (IR), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), and electron diffraction (ED). The antiwear ability of the coated PbS nanoparticles...
The tribological behaviours of the complexes in the title as additives in water were investigated in Part 1 of this work. Here in Part 2 their antiwear and extreme pressure properties as additives in liquid paraffin are dealt with and compared with the commercially available ester of di-n-dodecyl-polyethylene-epoxyphosphate. Their antiwear and extreme pressure properties in liquid paraffin were evaluated...
Four oil-water double soluble salts of lanthanum and zinc di-n-dodecyl-polyethylene-epoxyphosphate (coded as AEO-3-La, AEO-7-La, AEO-9-La and AEO-7-Zn, respectively) were prepared. These synthetic compounds and the ester of di-n-dodecyl-polyethylene-epoxyphosphate (coded as AEO-7-ester), obtained from commercial sources, were identified by elemental analysis, H 1 and 31 P nuclear...
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