Citation: Bai-xing Liu, Jun Liang, Zhen-jun Peng, Xiang-li Wang. Proton Irradiation Effects on the Structural and Tribological Properties of Polytetrafluoroethylene[J]. Chinese Journal of Polymer Science, ;2016, 34(12): 1448-1455. doi: 10.1007/s10118-016-1862-9 shu

Proton Irradiation Effects on the Structural and Tribological Properties of Polytetrafluoroethylene

a.
State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
b.
Key Laboratory for Electronic Materials of the State Ethnic Affairs Commission, College of Electric Engineering, Northwest University for Nationalities, Lanzhou 730030, China

Corresponding author: Bai-xing Liu, liubaixing@126.com
Received Date: 15 August 2016
Revised Date: 11 September 2016
Accepted Date: 11 September 2016

Fund Project: the National Natural Science Foundation of China 51405472

Polytetrafluoroethylene (PTFE) was irradiated with protons in a ground-based simulation facility to study the effects of proton irradiation on the structural and tribological properties of PTFE. The structural changes were characterized by X-ray photoelectron spectroscopy (XPS) and attenuated total-reflection FTIR (ATR-FTIR), while the tribological properties were evaluated by friction and wear tests. It was found that proton irradiation induced the degradation of PTFE molecular chains, resulting in the increase of C concentration and the decrease in F concentration on the sample surfaces, and the surface chemical structure and morphology of the samples changed, which affected the friction coefficient and decreased the wear rate of the specimens as the friction and wear tests revealed.
- Polytetrafluoroethylene,
- Proton irradiation,
- Degradation,
- Friction and wear
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1.
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