The results show that due to the proper cooling and boundary lubrication of alkali, the friction properties of CF/PTFE composites under alkaline solution conditions are superior to those under dry and wet conditions. studied the friction and wear properties of whisker and CF filler reinforced polytetrafluoroethylene composites under dry, wet, and alkaline conditions. Wang Huaiyuan ( Wang et al., 2007) et al. Due to the brittle fracture of CF, the change trend of roughness was opposite to the change trend of strength. The research results showed that the changes in tensile strength and thermal curing temperature of the composites were caused by defects on the CF surface. prepared CF reinforced resin matrix composites and conducted some performance analysis on them. The difference in interfacial strength may be caused by the thermally induced residual stress caused by the mismatch of the thermal expansion coefficient between CF and the matrix. The interfacial strength of unidirectional CF reinforced phenolic resin matrix composites is slightly higher than that of bidirectional CF reinforced phenolic resin matrix composites. analyzed the interfacial adhesion between CF and the matrix material, and the analysis results showed that the interfacial strength of unidirectional CF reinforced phenolic resin matrix composites was similar to that of bidirectional CF reinforced phenolic resin matrix composites, but showed different values. The study showed that when the carbon fiber content was between 10% and 20%, CF/PEEK composites exhibited good friction and wear properties. prepared CF/PEEK composites with different carbon fiber content, and studied the friction properties of the composites under different loads.

The study found that surface roughness, one-way sliding speed, and contact stress all have a significant impact on the friction coefficient. conducted a study on the friction and wear properties of CF reinforced polyether ether ketone composites under water lubrication. Paulo Davim ( Davim and Cardoso, 2005) et al. Carbon fiber (CF) has excellent properties such as wear resistance, high electrical conductivity ( Bijwe et al., 2013 Guo et al., 2017), which is widely used as a reinforcement material and is often doped with resin to prepare high-performance composite materials ( Qiu et al., 2021).

In order to improve its comprehensive performances, the most effective method is to compound the material ( Abdul, 2021 Li et al., 2021 He et al., 2022 Huang et al., 2022). With development of manufacturing industry, the bearing capacity and wear resistance of a single polymer material are not enough to meet different requirements. PEEK is a semi-crystalline aromatic thermoplastic engineering plastic, whose unique structure enables it to have excellent self-lubrication and other excellent properties ( Yan et al., 2020 Zhang et al., 2020 Hron et al., 2021). The surface friction static electricity of PEEK and CF/PEEK composites decreased with the increase of humidity. The wear rate of CF/PEEK composite changed slightly, which was significantly lower than that of PEEK, and the main wear mechanism was adhesive wear. The wear rate of PEEK decreased firstly and then increases, which reached the lowest of 3.09 × 10 −5 mm 3/Nm when the ambient humidity was 40%. The results showed that friction coefficient of PEEK and CF/PEEK composite changed slightly with increase of ambient humidity. The surface analysis and properties of the materials were measured by 3D profiler, scanning electron microscope, friction electrostatic tester. The effects of ambient humidity on the tribological properties, wear mechanism and antistatic properties of prepared materials were systematically studied. The friction experiments of prepared materials were carried out using UMT-2. Then PEEK and CF/PEEK composites were prepared at the optimum sintering temperature. The mechanical properties and microstructure characterization results showed that the pure PEEK prepared at 350 ☌ showed excellent friction and wear properties. In view of this, pure PEEK was prepared by vacuum hot pressing sintering technology at different sintering temperatures. Due to the high molding temperature, the molding method of ordinary plastics and cavity abrasives are difficult to meet the requirements. Polyether ether ketone (PEEK) is one of the representatives of special engineering plastics.

2National Engineering Laboratory for Bearing Tribology, Henan University of Science and Technology, Luoyang, China.

1School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, China.

Xianjuan Pang 1,2 Shiwei Yue 1,2 Suling Huang 1,2 Jinmeng Xie 1,2 Shuai Wang 1,2 Yun Yue 1,2 Chenfei Song 1,2* Dong Li 2

Peek plastic gogole scholar