Abstract
Multi-wall carbon nanotubes of medium length (mCNTs) were aggressively tip-ultrasonicated to produce shortened and damaged carbon nanotubes (xCNTs). High-resolution electron microscopic analysis was performed to measure the dimensions of carbon nanotubes (CNTs). Thermo-gravimetric analysis and Raman spectroscopy were used to evaluate the damage in the sonicated CNTs. Short CNTs (sCNTs), in their pristine form (undamaged), were used for comparison with sonicated xCNTs. Good dispersion was achieved when CNTs were bath-ultrasonicated in epoxy resin. The electrical conductivities were measured for cured CNT/epoxy nanocomposites. Compared to shorter CNTs (xCNT and sCNT), mCNT lowered the percolation threshold of CNT/epoxy nanocomposites for electrical conductivity. While ultrasonically shortened xCNTs did give a percolation threshold similar to that of sCNT/epoxy nanocomposites, lower ultimate electrical conductivities were obtained for nanocomposites based on xCNTs due to the presence of structural defects.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
