| Preparation, characterization and properties of magnetically aligned hexagonal Boron Nitride nanosheets/epoxy nanocomposites |
| Paper ID : 1016-UFGNSM-FULL |
| Authors: |
|
Mehdi Salehirad *1, Mir Mohammad Alavi Nikje2, Leila Ahmadian-Alam3, Maryam Kardani4 1شهرک قدس، انتهای شهید دادمان، پژوهشگاه نیرو 2Department of Chemistry, Faculty of Science, Imam Khomeini International University, Qazvin, Iran 3Niroo Research Institute, Chemistry & Process Group, Tehran, Iran. 4Niroo Research Institute, Chemistry and Materials Division, Chemistry & Process Group, Tehran, Iran |
| Abstract: |
| A b s t r a c t. In this study, preparation and characterization of magnetically aligned hexagonal Boron Nitride nanosheets/epoxy nanocomposites with enhanced thermal conductivity were investigated. Nanocomposites based on the epoxy/h-BN nanosheets were prepared in the presence of various amounts of polymer-grafted h-BN nanosheets (0-20 wt%) in order to achieve high performance nanocomposites. The magnetically responsive Fe3O4-grafted hBN nanosheets were prepared by surface modification of h-BN nanosheets, and their orientations were controlled by applying an external magnetic field during polymer curing. The influence of modified h-BN nanosheets on the thermal transport properties of nanocomposites were investigated. It was found that the addition of modified h-BN nanosheets resulted in a significant increase in thermal conductivity. The maximum thermal conductivity was 0.35 W/m.K at 25 °C for the magnetically aligned nanocomposite containing 20% h-BN nanosheets. The alignment of modified h-BN nanosheets was further verified by scanning electron microscopy (SEM) images. |
| Keywords: |
| hexagonal boron nitride, polymer composite, magnetic alignment, thermal conductivity |
| Status : Paper Accepted (Poster Presentation) |
