Composites based on carbon fibers and liquid crystalline epoxy resins, 2: Dynamic-mechanical analysis and fracture toughness behavior

The dynamic-mechanical characterization and fracture resistance of composites, prepared by using a liquid crystalline epoxy resin and continuous carbon fibers, are presented and compared with conventional composites. In the case of the LC matrix, a higher Tg was found; similarly, a superior fracture resistance, higher elastic modulus and higher Tg were found for the LC-based composites. These results allow to consider these materials as potential candidates for advanced composites. © Wiley-VCH Verlag GmbH, 2000.