Improved Sensing Properties of Epoxy Resin Polymers and Carbon Fiber Reinforced Epoxy Resin Composites by the Introduction of Multi-Wall Carbon Nanotubes (MWCNT)

摘要

The proposed paper will present the manufacturing process of epoxy resin compounds with several multi-wall carbon nanotube (MWCNT) contents per weight and, carbon fibre reinforced polymers with the previous nano-doped epoxy matrix material. Enhanced mechanical properties of the doped specimens both epoxy and carbon reinforced against the neat epoxy testpieces e.g. tensile strength and modulus of elasticity was achieved and attributed to the high surface area and high aspect ratio of the nanotubes. Moreover the dynamic properties of the nano-doped epoxy polymers were investigated and the relation of glass transition temperature with increasing CNT content was found to be inverse. Another goal of the present work was to use the electrical/sensing properties of MWCNTs as a nano-sensor for the damage detection within the matrix material of the CFRPS. Therefore loading-unloading tensile tests were performed, along with on-line conductivity monitoring.