Hybrid Nanocomposites of Carbon Nanotubes(GNTs)Grown on Carbon fiber in Polyester Matrix with Improved Thermomechanical Properties

摘要

Carbon nanotubes(CNTs)were grown on the surface of carbon fiber using thermal chemical vapor deposition(CVD)technique.Ni is used as a catalyst.The coating of catalyst on the surface of carbon fiber was done by electroless dip coating technique.By performing structural characterization of CNT coated carbon fiber using scanning electron microscope(SEM)and transmission electron microscopy(TEM),the length and diameter of CNTs were measured and found to be ~9000 nm and ~40 nm respectively.Thermo gravimetric analysis(TGA)of as received and CNT coated carbon fiber samples in nitrogen atmosphere indicates that the CNT coated carbon fiber samples are thermally more stable.The improvement in storage modulus in CNT coated carbon fiber samples is observed in dynamic mechanical analysis(DMA).