Effects of Flexible Interphase on Mechanical Properties of Unidirectional Carbon Fibre Reinforced Composites

摘要

Basic mechanical properties of unidirectional carbon fiber reinforced plastics and their scatter depend on fiber, matrix and interfacial properties. We progressed the interphase concept further with a new concept, the flexible interphase. This concept is that the interphase is not a surface; it is a region which has some amount of volume. Flexible epoxy resin was coated on carbon fiber strand. The effectiveness of the interphase on mechanical properties of unidirectional CFRP were investigated.