J. Mater. Sci. Technol. ›› 2020, Vol. 37: 19-25.DOI: 10.1016/j.jmst.2019.07.038

• Research Article • Previous Articles     Next Articles

Impregnation approach for poly(vinylidene fluoride)/tin oxide nanotube composites with high tribological performance

Min Su Parka1, Jin Kyu Kima1, Tong-Seok Hanb, Jung Tae Parkc*(), Jong Hak Kima*()   

  1. a Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea
    b Department of Civil and Environmental Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea
    c Department of Chemical Engineering, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul, 05029, Korea
  • Received:2019-06-04 Revised:2019-06-29 Accepted:2019-07-08 Published:2020-01-15 Online:2020-02-10
  • Contact: Park Jung Tae,Kim Jong Hak
  • About author:1 These authors have contributed equally to this work.

Abstract:

We report a composite material with the high tribological performance, which consists of one-dimensional SnO2 nanotubes (ST) and a high molecular weight poly(vinylidene fluoride) (PVDF) matrix in terms of nano-impregnation. Dissolution of PVDF in N,N-dimethylformamide (DMF) resulted in a facile penetration of PVDF into the inner hollow voids of ST, leading to the close contact. Interaction between PVDF and ST results in a beneficial effect on the chain arrangement of PVDF, providing an α-phase with better tribological property. Upon ST incorporation, the friction coefficient decreased by 85.0% to 0.408, and the specific wear rate decreased by 69.1% to 0.412, demonstrating the pivotal role of ST as a self-lubricating material due to a large interactive area and PVDF chain rearrangement.

Key words: SnO2 nanotube, Composite, Friction coefficient, Wear rate