UTILIZATION OF THE DERIVATIVES OF FULLERENE (C60) MODIFIED PHENOLIC RESIN TO PREPARE CARBON/CARBON COMPOSITES (Ⅰ)

摘要

The improvement on the toughness of the cured phenolic resin modified with linear PU and star C60-PU was investigated. The modified phenolic resins were utilized to prepare carbon/carbon composites. Impact strength of cured resin specimen contains 3phr linear PU is 27 % higher than that of neat phenolic resin while the impact strength of specimen contains 3phr C60-PU is 57 % higher than that of neat phenolic resin. The flexural strength of carbon/carbon composite contains 3phr linear PU is 25 % lower than that of composite contains only neat phenolic resin. The flexural strength of carbon/carbon composite contains 3phr C60-PU is 40% higher than that of composite contains only neat phenolic resin.