Development of Nano-C/C Composites with Bacterial Cellulose and Tribological Properties

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Bacterial cellulose (BC) is one of the eco-friendly materials, and is synthesized by several species of bacterium. In this paper, the fabrication method of Carbon/Carbon composites made from BC and Phenol resin, and its tribological properties were investigated. In order to clarify the effect of temperature in fabricating process on tribological properties, the testing specimens were carbonized at various carbonizing temperatures and heating rates. The tribology test for nano-C/C composites was conducted under dry sliding condition. The mean friction coefficient took the low values of 0.12 ~ 0.20 for 10°C°・h-1, the specific factors of wear element loss varied at 2.71×10-10 ~ 8.33×10-10 mm2/N. It was revealed from the experimental results that with an increase in the carbonizing temperature, nano-C/C composites exhibited better wear resistance, higher hardness and bending strength.

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