Open AccessResearch on the Effect of Temperature on Tribological Properties of PTFE Composites under Oil Lubrication Conditions
Author(s) -
JianWen Shi,
Shuangfu Suo,
Zhang Qi
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/719/2/022095
Subject(s) - materials science , composite material , tribology , reciprocating motion , lubrication , polytetrafluoroethylene , composite number , friction coefficient , dry lubricant , wear resistance , coefficient of friction , fiber , carbon fibers , glass fiber , bearing (navigation) , cartography , geography
PTFE and its composites are widely used in various reciprocating sealing materials due to their extremely low friction coefficient. As pure PTFE has poor wear resistance at high temperature, it is necessary to study the tribological properties of PTFE with different fillers under the condition of high temperature and oil lubrication. The friction and wear properties of PTFE and PTFE composite material filled with bronze powder, carbon powder, carbon fiber, glass fiber and MoS 2 powder were studied by standard friction and wear test using SRV-4 tribotester. Results showed that the wear resistance was all improved indicating that the fillers increased the wear resistance of PTFE, PTFE composite filled with MoS 2 has the lowest coefficient at ambient temperature and the highest at high temperature, PTFE composites filled with carbon fiber have the lowest wear rate at all temperatures.