Preparation and characterisation of field-responsive nanofibres by coaxial electrospinning
by Dayeong Jeong; Deok Jun Whang; Sungmin Kim; Tae Jin Kang
International Journal of Nanotechnology (IJNT), Vol. 13, No. 4/5/6, 2016

Abstract: Field-responsive core-sheath nanofibres were prepared via coaxial electrospinning with MWNTs/Fe₃O₄ nanoparticles in polyurethane (PU) solution. To improve the mechanical properties and dispersibility of Fe₃O₄ nanoparticles in PU solution, co-precipitation method was utilised to synthesise MWNT&Fe₃O₄ nanocomposites. The results showed that Fe₃O₄ nanoparticles were chemically attached on the surface of MWNTs and a homogeneous distribution of MWNT/Fe₃O₄ nanocomposites along the PU nanofibres. The composite nanofibres showed superparamagnetic behaviour of MWNT/Fe₃O₄ nanoparticles. The mechanical properties of field-responsive core-sheath nanofibres showed improved tensile properties under an external magnetic field. It indicates that the MWNTs/Fe₃O₄ nanocomposites-incorporated core-sheath structure is effective for enhancing the mechanical properties of field-responsive nanofibre webs.

Online publication date: Mon, 20-Jun-2016

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