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Synthesis and tribological properties of polyaniline functionalized by ionic liquids

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Abstract

Two types of functionalized polyaniline (PAN) were synthesized based on the interfacial polymerization. PAN was characterized by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy and Fourier transform infrared spectrometer. The results showed that synthesized PAN had different structures and was effectively modified by ionic liquids. The tribological properties of PAN as additives in polyethylene glycol (PEG) for steel/steel pairs were investigated in detail. The maximum reduction in friction and wear was achieved by PEG with addition of 0.2 wt% PAN. In particular, the wear volume was reduced by 3.8 times under 200 N. Moreover, the lubrication mechanisms were proposed by SEM and X-ray photoelectron spectroscopy (XPS) analysis of the worn surfaces.

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Acknowledgements

This work is supported by the National Natural Science Foundation of China (Grant 51575181) and Beijing Municipal Natural Science Foundation (Grant 2172053).

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Authors and Affiliations

  1. School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing, 102206, China

    Zhengfeng Cao & Yanqiu Xia

  2. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China

    Yanqiu Xia

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  1. Zhengfeng Cao
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Correspondence to Yanqiu Xia.

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Cao, Z., Xia, Y. Synthesis and tribological properties of polyaniline functionalized by ionic liquids. J Mater Sci 53, 7060–7071 (2018). https://doi.org/10.1007/s10853-018-2028-7

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  • DOI: https://doi.org/10.1007/s10853-018-2028-7

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