Issue 35, 2020, Issue in Progress

Synergistic lubrication of a porous MoS2-POSS nanohybrid

Abstract

A porous MoS2-polyhedral oligomeric silsesquioxane (POSS) nanohybrid was prepared from octavinyl-POSS nanoparticles and MoS2 nanosheets for the first time, the structure and composition of which were confirmed by X-ray powder diffraction (XRD), Fourier-transform infrared spectra (FTIR), scanning electron microscopy (SEM), energy dispersive spectra (EDS) and thermal gravimetric analysis (TGA). As a comparison, MoS2 nanosheets, octavinyl-POSS and MoS2-POSS nanohybrid were used as lubricating additives for liquid paraffin (LP), which decreased the friction coefficients of LP by 7.8% (MoS2), 14.1% (octavinyl-POSS), and 18.8% (MoS2-POSS). Compared with MoS2 and octavinyl-POSS, the MoS2-POSS nanohybrid can be dispersed in organic solvents more homogeneously without adscititious dispersants or surfactants due to its better organic compatibilities. SEM and EDS analyses indicate that a synergistic frictional effect is responsible for the improved friction-reduction and anti-wear behavior.

Graphical abstract: Synergistic lubrication of a porous MoS2-POSS nanohybrid

Supplementary files

Article information

Article type
Paper
Submitted
03 Mar 2020
Accepted
11 May 2020
First published
01 Jun 2020
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2020,10, 20579-20587

Synergistic lubrication of a porous MoS2-POSS nanohybrid

X. Xu, S. Jiao, Z. Liu and L. Liu, RSC Adv., 2020, 10, 20579 DOI: 10.1039/D0RA02014A

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