Category: Transient Plane Source
Keywords: Carbon nanotubes, CNTs, composites, Conducting layers, Facile mechanical mixing, Fillers, Fullerenes, graphene, High performance conducting polymers, Nanotubes, Percolation Threshold, Polymer composites, Polymethyl methacrylate (PMMA), Polyolefins, Structure-property relations, Temperature-resistivity behaviors, Thermal Conductivity, Ultrahigh molecular weight polyethylene (UHMWPE)
Abstract: Conductive polymer composites (CPCs) contain high concentrations of carbon nanotubes (CNTs) to maximize electrical conductivity. However, high nanoparticle concentrations degrade other important properties of CPCs. This study produced CPCs using ultrahigh molecular weight polyethylene (UHMWPE) fillers in place of CNTs in an attempt to maintain important physical and mechanical properties. A Hot Disk 2500-OT measured the thermal conductivity of the CPC samples using the transient plane source (TPS) method. Results showed that the altered CPCs maintained the desired levels of electrical conductivity, but thermal conductivity levels did not meet the theoretical expectations, likely because UHMWPEs have a higher porosity than CNTs.
Reference: Journal of Applied Polymer Science, 131, 2 (2014)