Synthesis and Tribological Behavior of Surface Coated Cu Nanoparticles in Liquid Paraffin

  • Zhang L
  • Wan H
  • Zhou H
  • et al.
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Abstract

The Cu nanoparticle surface coated with S-hexyl N,N-dihydroxyethyldithiocarbamate (SHNDD) was synthesized by the controlled reduction ofaqueous copper salts using the modified Brust synthesis. Themorphology, structure and thermal properties of the modified Cunanoparticles (SHNDD-nano Cu) was investigated by means of transmissionelectron microscopy, X-ray powder diffraction, Fourier transforminfrared spectrum, and thermogravimetric analysis. As the results ofTEM and IR spectrum shown, the size of as-prepared nanoparticles isabout 6 rim and existence of the organic carbon chain on the surface ofnanoparticles is observed. The tribological behaviors of Cunanoparticles in liquid paraffin were evaluated on a four-ball testingmachine. The results show that Cu nanoparticles as oil additives canimprove the load-carrying capacity and antiwear property of the baseoil. The rubbed surfaces were investigated by scanning electronmicroscopy (SEM) and X-ray photoelectron spectroscopy (XPS). It can beinferred that a tribological reaction film was formed, whichcontributed to the good tribological properties of surface modified Cunanoparticles.

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Zhang, L., Wan, H., Zhou, H., Chen, L., & Chen, J. (2009). Synthesis and Tribological Behavior of Surface Coated Cu Nanoparticles in Liquid Paraffin. In Advanced Tribology (pp. 311–312). Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-642-03653-8_97

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