Abstract
Carbon nanotubes have many outstanding properties, such as mechanical, electronic, thermal properties, light weight and high aspect ratio, Carbon nanotubes were used as the reinforcement material of composites, and have been applied CNT to aeronautical industries or electrical products. But these applications could be used in many conditions, so the objective of this study was to discuss the effect of composites with modified-CNT in different testing conditions, and the results were examined using scanning electron microscope. The results demonstrated that modified-CNT could enhance the interfacial adhesion between the CNT and epoxy. At high temperature aging, high temperature/ high humidity aging, and thermal cycle testing conditions, the mechanical properties of modified-CNT composites were better than unmodified-CNT. Because of the interfacial adhesion was enhanced by modified-CNT, which reduced the coefficient of thermal expansion and increased the glass transition temperature, promoting the thermal stability.