Synthesis and Characterization of Functionalized Fe3O4/Boron Nitride as Magnetically Alignable 2D-Nanofiller to Improve the Thermal Conductivity of Epoxy Nanocomposites

What is it about?

In the electronic industry, there is an enormous request for high thermal conductivity polymer. In this regard, we propose the novel synthetic route to produce magnetically alignable 2Dnanofiller. In our work, Surface modification of boron nitride nanosheets (BNNs) with polyacrylamide brushes are explored. For this purpose, the post-polymerization reaction of BNNs is followed by the redox polymerization of acrylamide onto the surfaces of already hydroxyl-functionalized BNNs. Afterwards, magnetic iron oxide nanoparticles are contributed to modified BNNs through polyacrylamide chelating effect. Finally, to provide high thermal conductive and magnetic responsive nanocomposites, the functionalized Fe3O4/ BNNs are dispersed in epoxy matrix and aligned under an external magnetic field.

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