THE EFFECTS OF DIFFERENT FUNCTIONALIZED CARBON NANOTUBES ON TOUGHENED CARBON FIBRE REINFORCED EPOXY

摘要

The study is to understand the fracture behaviours of multi-walled carbon nanotubes (MWCNTs) which were treated with multi-functional amines and epoxy individually applied on toughened epoxy matrix of carbon composites. The influences of the reactivity, glass transition temperature of CNT concentration on modified epoxy matrix were evaluated by Differential Scanning Calorimeter (DSC). Curing cycles were determined as well. Dispersing conditions of each matrix system was observed by Variable Vacuum Scanning Electron Microscopy (VVSEM). The two CNT modified composites were then investigated by the properties of breaking strain, shortbeam shear and fracture toughness.