Paper number 1344

PROCESSING AND PROPERTIES OF FULLERENE (C-60) DERIVED CARBON/CARBON COMPOSITES

Chen-Chi M. Ma¹, Shang Chin Sung¹, Long Y. Chiang², and Lee Y. Wang²

1Institute of Chemical Engineering
National Tsing Hua University, Hsinchu, Taiwan
2Center for Condensed Matter Sciences
National Taiwan University, Taipei, Taiwan

Summary

The linear PU and star C60-PU copolymers were synthesized to modify novolac phenolic resin. The improvement on the toughness of the cured modified phenolic resin was investigated. The modified phenolic resins were utilized to prepare carbon/carbon composites. Experimental results confirm the predicted chemical structure of linear PU can be synthesized by reacting the tyramine with PU prepolymer. Furthermore, one isocyanate group of PU prepolymer can react with tyramine, and then the other isocyanate group of PU prepolymer will react with C60(OH)12. Consequently, the star C60-PU can be synthesized. Impact strength of cured resin specimen containing 3phr linear PU is 27 % higher than that of neat phenolic resin which the impact strength of specimen containing 3phr C60-PU is 57 % higher than that of neat phenolic resin. Properties of the C60-PU modified phenolic resin based carbon-carbon composite will be discussed.

Keywords

fullerene, polyurethane, phenolic resin, carbon-carbon composite, impact strength.