Thermal conductivities of electrospun PAN and PVP nanocomposite fibers incorporated with MWCNTs and NiZn ferrite nanoparticles

• Published in: International journal of thermal sciences 2013-09, Vol.71, p.74-79
• Main Authors: Khan, W.S., Asmatulu, R., Ahmed, I., Ravigururajan, T.S.
• Format: Article
• Language: English
• Subjects: Applied sciences; Condensed matter: structure, mechanical and thermal properties; Conductive filler materials; Electrospinning; Exact sciences and technology; Ferrite; Fibers; Fibers and threads; Forms of application and semi-finished materials; Heat transfer; Nanocomposites; Nanocomposites fibers; Nanomaterials; Nanostructure; Physics; Polymer industry, paints, wood; Technology of polymers; Thermal conductivities; Thermal conductivity; Thermal properties of condensed matter; Thermal properties of small particles, nanocrystals, nanotubes
• ISSN: 1290-0729; 1778-4166
• DOI: 10.1016/j.ijthermalsci.2013.03.006

Polyacrylonitrile (PAN) and polyvinylpyrrolidone (PVP) solutions incorporated with multi wall carbon nanotubes (MWCNTs) and NiZn ferrite (Ni0.6Zn0.4Fe2O4) nanoparticles were electrospun at various weight percentages, and then thermal conductivity values of these nanocomposite fibers were determined using a comparative method. During the electrospinning process, system and process parameters, such as concentrations, applied voltage, tip-to-collector distance, and pump speeds were optimized to receive the consistent nanocomposite fibers. Polymer composites with high thermal conductivities are required in many applications, such as electronic packaging, satellite devices, charging/discharging, energy dissipation, and low thermal expansions. The presence of conductive filler materials in polymers increased the thermal conductivity of MWCNTs-based fibers over 10 fold, which may be attributed to higher thermal conductivities of these filler materials. The electrospun fibers incorporated with NiZn ferrite did not show similar improvement. •Fabrication of PAN and PVP nanocomposite fibers incorporated with MWCNTs and NiZn ferrites via electrospinning.•The thermal conductivity of MWCNTs based nanocomposites was increased 10 folds.•The thermal conductivity of NiZn ferrite based nanocomposites did not show similar results.