Abstract
Three-dimensional mesoporous MgO nanosheets (MgO_NS) were synthesized by a facile non-hydrothermal method for the improvement of the tribological properties of poly(vinylidene fluoride) (PVDF) composites. The interactions and structural properties of the MgO_NS composites were systematically compared with those of commercially available MgO beads (MgO_B). It was found that the incorporation of MgO_NS decreased the polar β phase of the PVDF crystallinity owing to an intimate contact and good interactions between the mesoporous MgO_NS filler and PVDF matrix. Recipro-mode tribology tester results for a long measurement time of 3 h showed that the friction coefficients of the PVDF composites decreased with the increasing filler content for both MgO_B and MgO_NS, indicating an important role of MgO as a self-lubricating material. In particular, the PVDF/MgO_NS 5.0% composite exhibited an outstanding initial friction coefficient of 0.091 and specific wear rate of 1.8 × 10−5 mm3/N m as compared with MgO_B, this performance being among the best for PVDF-based composites. The results indicated that mesoporous MgO_NS composites with their small crystal size, large surface area, good dispersion, and intimate contact with the PVDF matrix were more effective than randomly organized MgO_B.
Original language | English |
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Pages (from-to) | 224-235 |
Number of pages | 12 |
Journal | Composites Part B: Engineering |
Volume | 163 |
DOIs | |
Publication status | Published - 2019 Apr 15 |
Bibliographical note
Funding Information:This work was supported by a National Research Foundation of South Korea grant funded by the Ministry of Science, ICT and Future Planning (NRF-2017R1A4A1014569), the Agency for Defense Development (UD130049GD) and the Korea Institute of Energy Technology Evaluation and Planning (KETEP) funded by the Ministry of Trade, Industry & Energy (20174030201480).
Funding Information:
This work was supported by a National Research Foundation of South Korea grant funded by the Ministry of Science, ICT and Future Planning ( NRF-2017R1A4A1014569 ), the Agency for Defense Development ( UD130049GD ) and the Korea Institute of Energy Technology Evaluation and Planning (KETEP) funded by the Ministry of Trade, Industry & Energy ( 20174030201480 ).
Publisher Copyright:
© 2018 Elsevier Ltd
All Science Journal Classification (ASJC) codes
- Ceramics and Composites
- Mechanics of Materials
- Mechanical Engineering
- Industrial and Manufacturing Engineering