Abstract
Water-borne polyurethane (WPU) based nanocomposites with graphene nanoplates (GNs)/Fe3O4 or multi-walled carbon nanotubes (MWCNTs)/Fe3O4 as hybrid nanofillers were fabricated by polymerizing hybrid emulsions, and their dielectric properties and electromagnetic interference shielding effectiveness (EMI SE) were carefully investigated. The carbon nanofillers showed good dispersion in the PU matrix due to cation-π interactions between carbon fillers and WPU end-capped by ionic liquid (IL) with amino groups. The results show that the PU/MWCNTs-IL composites provided better EMI SE and dielectric properties compared to PU/GNs-IL composites because of the one-dimensional geometry of MWCNTs and their better tendency to form a conductive network. Magnetic Fe3O4 nanoparticles can enhance the EMI SE of PU/GNs-IL/Fe3O4. However, they inhibit the EMI SE of PU/MWCNTs-IL/Fe3O4 because the two-dimensional geometry of GNs can restrain the strong magnetic attraction interaction between Fe3O4 and weaken the aggregation of GNs.
Sign-in/Register to access full text options 
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.
