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In this work, iron oxide (Fe 3 O 4 ) nanosheets are synthesised using the solvothermal method. Transmission electron microscope (TEM) observation confirms the nanosheets-like morphology of Fe 3 O 4.  While X-ray diffraction (XRD) studies of Fe 3 O 4  nanosheets reveal the Fe 3 O 4  nanosheets synthesised are crystalline in nature. Vibration sample magnetometry studies of Fe 3 O 4  nanosheets have shown superparamagnetic behaviour with saturation magnetisation ( Ms ) value of 29.6 emu/g. The synthesised Fe 3 O 4  nanosheets are dispersed in poly(vinylidene fluoride) PVDF matrix using the solution casting method with slow evaporation of solvent at 60 °C which facilitates the formation of β-form of PVDF crystals. The PVP modified Fe 3 O 4  nanosheets incorporation in the PVDF matrix influences the thermal stability and crystalline behaviour. Scanning electron microscope observation shows the improved dispersion of Fe 3 O 4  nanosheets in the PVDF matrix by modifying Fe 3 O 4  nanosheets with PVP. The  Ms  value is increased by ∼122% for PVP modified Fe 3 O 4  nanosheets reinforced PVDF nanocomposites as compared to Fe 3 O 4  nanosheets reinforced PVDF nanocomposites.

Surface modified iron oxide (Fe 3 O 4 ) nanosheets reinforced PVDF nanocomposites: influence on morphology, thermal and magnetic properties