THERMAL AND ELECTRICAL PROPERTIES OF PA 11 / NANOGRAPHENE PLATELET NANOCOMPOSITES

摘要

The scope of this research is to evaluate thermal and electrical properties of polyamide 11(PA 11)anographene platelet (NGP) nanocomposites. Previous research and analysis ofnanographene suggests that the improved thermal properties are ideal for application as athermal management layer in microelectronic devices, lightning protection in aircraft, andthermally conductive films. The main processing technique used was sonication for mixingof PA 11 and NGPs. Samples were prepared using 1 wt%, 3 wt% and 5 wt% by weightNGPs. Isopropyl alcohol (IPA) was used as a solvent to assist in dispersion of the NGPswithin PA 11. The resultant solution of PA 11/NGPs was heated to between 80-85 °C inorder to evaporate the IPA and then placed in a compression press between aluminum foils at205°C and used to produce a thin film for testing. Thermal characterization ofnanocomposites includes thermogravimetric analysis (TGA) and Thermomechanical Analysis(TMA) at the heating rate of 20 °C/min. Electrical resistivity was also measured.