LONG MWNT/EPOXY NANOCOMPOSITES: TAILORED FUNCTIONALIZATION AND HIGH ALIGNMENT DEGREE FOR HIGH-PERFORMANCE BEYOND CFRPS

摘要

Due to their exceptional mechanical properties, many researchers predict carbon nanotubes (CNTs) to be the most promising candidate for the next generation reinforcement materials. In this study, we report the experimental results of the extraordinary mechanical properties in CNT reinforced epoxy composites. These results show unprecedented integration of high strength, modulus and large failure strain, 3,252 MPa, 279 GPa and 1.6% respectively, compared to the state-of-the-art unidirectional carbon fiber reinforced polymeric composites (CFRPs). This report discusses the effects of the extra-large aspect ratio of millimeter-long MWNTs, tailored epoxidation functionalization and high degree of alignment. Resilient high strength and stiffness composites are highly desired for ultra-lightweight engineered systems for improved structural safety, energy efficiency and design freedom.