Investigation of Mechanical and Optical Properties of Aligned Carbon Nanotube/Poly Methyl Methacrylate Nano Composites

摘要

The one dimensional nanostructure of Carbon nanotube (CNT) and their tremendous mechanical and optical properties make them emergent material for nano composites especially with polymers. Even at a very low concentration of CNT the significant changes can be observed in optical andmechanical properties of nano composites. In present work we prepared the vertically aligned CNT/polymer nano composite flexible thin films by dispersed the multi walled carbon nanotubes (MWCNT) in poly methyl methacrylate (PMMA) matrix using solution casting method in presence of verticallyapplied electric field. The concentration of MWCNT in nano composite thin films having constant thickness of 40 μm was varied by dispersed the different wait ratio of MWCNT within the range of 0.1 wt% to 0.5 wt% in PMMA matrix. The effect of concentration of CNTs in the polymer andthe aligned CNT with vertical electric field were studied. The comparative studies on the Structural, mechanical and optical properties of MWCNT/PMMA Nano composites were studied using, Scanning electron microscopy (SEM), photoluminescence spectroscopy (PL), Ultra violet-visible spectroscopy(UV-VIS) methods. The mechanical properties were studied by using Dynamic mechanical analysis (DMA).