Thermal, mechanical, and tribological properties of short carbon fibers/PEEK composites

Abstract

In this work, the effect of thermal, mechanical, and tribological properties of the blending system of different contents of short carbon fibers (SCFs) on different-viscosity poly-ether-ether-ketone (PEEK) was reported. The composites were manufactured using injection molding technique. Mechanical and tribological properties were measured by the tensile strength, the flexural strength, the coefficient of friction, and the wear rate. The results showed that the wear resistance and mechanical properties of the PEEK with the lower viscosity appeared on a more outstanding level, and experimental results showed that PEEK composites with added 10 wt% SCFs were optimal about the tribological behaviors and mechanical properties of the composites. Furthermore, based on scanning electron microscope inspections, the situation of the friction and worn surface of the material was explained.

Super tough graphene oxide reinforced polyetheretherketone for potential hard tissue repair applications

“…It can be seen that although 2.0 and 5.0GO-PEEK exhibited similar or even better flexural modulus compareing to other GO-PEEK composites, they are more prone to fracture at a much lower strain level (ɛf = 0.071 and 0.069, respectively). hybrid fillers enhanced PEEK reported previously [30], indicating the more superior stiffness of our composites [31,32]. According to Fig 3c, the strain at break of the composites varies significantly with different GO content.…”

Enhancing the mechanical performance of poly(ether ether ketone)/zinc oxide nanocomposites to provide promising biomaterials for trauma and orthopedic implants

“…Due to such excellent properties, PEEK is widely used in aerospace industry, automotive industry, mechanical industry, medical and electronic applications, and many other elds. [1][2][3][4][5] The friction and wear properties of PEEK and its composites have been extensively studied. [6][7][8][9][10][11][12][13][14][15] Moreover, PEEK has no toxicity, solvent resistance, and can be repeatedly sterilized using conventional methods such as those employing steam, gamma radiation, and ethylene oxide without evident degradation of the mechanical properties.…”

Influence of cenosphere on tribological properties of short carbon fiber reinforced PEEK composites

“…Due to the high specific strength and stiffness, excellent tribological performances, light weight, nonmagnetic and high corrosion resistance, poly(ether ether ketone) (PEEK) and PEEK‐based composites attracted much attention of tribologists . In order to meet the requirements of the modern industrial machinery, especially the requirements under high contact pressure and oil‐free lubrication conditions, many attempts have been tried to improve the tribological performance of PEEK by material scientists . Modification of PEEK with short carbon fiber (SCF) reinforcement and lubricant additives has been proved to be effective in improving the wear resistance of PEEK .…”