The association of a symmetric polyoxyethylene-polyoxypropylene-polyoxyethylene (PEO(19)-PPO(29)-PEO(19)) triblock copolymer adsorbed from aqueous solutions onto polypropylene (PP), polyethylene (PE), and cellulose surfaces was probed using Atomic Force Microscopy (AFM). Significant morphological differences between the polyolefin substrates (PP and PE) and the cellulose surfaces were observed ...

The tribological performance of the friction pair between rotor and finger feet is a crucial index affecting service life seals. In recent years, surface texture has attracted considerable number researchers owing to its extraordinary potential in improving antifriction wear resistance. This paper, inspired by snakeskins, introduces three forms (e.g., diamond, ellipse, hexagon) into rotor. effe...

The lubricity of drilling fluid resistant to high-temperature over 200 ℃ is still one the technological breakthroughs. In this study, graphene modified with sodium dodecylbenzene sulfonate (SDBS) was selected as a lubricant. Our results show that fluids have high stability after aging at 240 °C assistance SDBS/graphene. Excitingly, tribological performance test revealed SDBS/graphene exert exce...

Based on the technological process of processing raw cotton, friction conditions various units pairs interacting with cotton and fiber are analyzed elucidation influencing factors force in contact zone. When rubbing composite polymer materials depending repeated formation destruction bonds zone, electric charges arise accumulate, which increases tension double layer Forming together other compo...

We study the mechanism of formation multilayer structure subsurface regions WC/Mn13 steel cermets after sliding on a disk at speeds from 10 to 37 m/s and contact pressure 5 MPa in order elucidate fundamental role processes tribooxidation worn surface tribomechanical properties large family similar W/Fe-containing materials. It was shown that maximum antifriction effect under conditions high-spe...

In this work the effects of various methods of agitation on the properties of electroless Ni-P-MoS2 composite coatings were investigated. Magnetic stirring as well as purging the solution with gas (Air, Oxygen, Nitrogen) were used. Plating rate, chemical composition, MoS2 distribution, and hardness of the deposit were measured. Topography of coating was studied with metallography and scanning e...