"Comparative study of tribological properties of insulated and conducti" by Jingfu SONG, Yuanhao YU et al.

Article Title

Comparative study of tribological properties of insulated and conductive polyimide composites

Authors

Jingfu SONG, College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
Yuanhao YU, State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
Gai ZHAO, State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
Jinhao QIU, State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
Qingjun DING, State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

Keywords

polyimide composites, insulation, friction, wear

Abstract

Insulated polyimide (PI) composites filled with short glass fibers (SGF), polytetrafluoroethylene (PTFE), SiO₂, and polyphenylene (PPL) are specially designed, prepared, and the tribological properties are systematically investigated with references to the special requirements for frictional materials used in ultrasonic motors. The hardness and thermal decomposition temperature of the insulated PI composites are comparable to that of conductive PI composites. However, these insulated materials present excellent friction and wear performance, especially under high loads and speeds. Scanning electron microscopy (SEM) analysis of the worn surface indicates that adhesive and fatigue wear dominate the wear mechanisms.

DOI

https://doi.org/10.1007/s40544-019-0269-3

Publisher

Tsinghua University Press

Recommended Citation

Jingfu SONG, Yuanhao YU, Gai ZHAO et al. Comparative study of tribological properties of insulated and conductive polyimide composites. Friction 2020, 8(3): 507-516.

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