Dissolution–precipitation approach for long-term stable low-friction composites consisting of mesoporous TiO2 nanospheres and carbon black in Poly(Vinylidene fluoride) matrix

Min Su Park, Chang Soo Lee, Jae Hun Lee, Du Yeol Ryu, Jong Hak Kim

Research output: Contribution to journalArticlepeer-review

Abstract

Low-friction composites with long-term stability based on three-dimensional, mass-producible mesoporous TiO2 nanospheres (MTNs) with a large surface area and carbon black (CB) dispersed in a poly (vinylidene fluoride) (PVDF) matrix were developed via dissolution–precipitation approach. The interaction and miscibility were enhanced by the incorporation of a small amount of CB filler. A long-term test (4 h) indicated that the incorporation of 5% MTN reduced both the friction coefficient (0.480) and the specific wear rate (0.412 × 10−4 mm3 N−1 m−1) compared with neat PVDF. The friction coefficient (0.446) was further reduced by the addition of CB (MTN_15CB with 15% MTN) owing to the increased fraction of the nonpolar α phase in the PVDF and the good adhesion properties of the composites.

Original languageEnglish
Article number106187
JournalTribology International
Volume145
DOIs
Publication statusPublished - 2020 May

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation (NRF) of South Korea , funded by the Ministry of Science, ICT and Future Planning [grant numbers NRF-2017R1A4A1014569 , 2017R1D1A1B06028030 ].

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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