Preparation and Characterization of the Polyamide 6 /Multi-Walled Carbon Nanotubes Composites via in situ Polymerization

The polyamide 6/multi-walled carbon nanotubes(MWCNTs) composites were prepared by in situ polymerization methods.Prior to the fabrication of composites,the MWCNTs was amido-functionalized,The effect of the filler loading on the mechanical and electrical properties of the composites was studied,the results indicate that both the volume and surface resistance ratio of composites containing MWCNTs of 5% reduce three orders of magnitudes compared to pure PA6 matrix,the dielectric constant of composites increases significantly by 71%,especially in the lower frequency,The elastic modulus,the flexual modulus and bend strength of composites containing MWCNTs of 5% improves largely even up to 99%,56% and 57%,respectively.The tensile strength and impact strength of composites decreases due to the loading of MWCNTs.