| 초록 |
To increase the inherent properties of polymers, many researchers have studied polymer composites with carbon nanotubes (CNTs), because CNTs are widely known as the ideal candidate for use as a reinforcing filler in composite materials, due to their unique properties, for example, their good mechanical strength, electrical and thermal conductivity. In this study, Multiwalled carbon nanotubes having hydroxyl groups (MWNT-OH) were treated with 2-bromoisobutyryl bromide (MWNT-Br). PP-grafted MWNTs were produced with MWNT-Br and PP-OH using a triethylamine as a catalyst in toluene at 105 ℃. Then, the hybrid nanocomposites of polypropylene and PP-grafted MWNTs were prepared by solution mixing in o-xylene. The composition, structure, morphology, thermal property of the hybrid nanocomposites were studied by SEM, TGA, DSC, thermal diffusivity system, and electronic densimeter. |
