Abstract
AbstractThe tunable magnetic response has rarely been achieved in conventional magnetic responsive polymer nanocomposites (MRPNCs). Here we show a new approach to offer effective rules for designing novel MRPNCs with in‐situ tunable magnetic anisotropy which are self‐organized in a low magnetic field via controlling the self‐organization temperature between the melting points of isotactic polypropylene (iPP) and poly(ϵ‐caprolactone) (PCL), and magnetic ferroferric oxide (Fe3O4) nanoparticles selectively dispersing in PCL with low melting temperature. The iPP/PCL/Fe3O4 nanoparticles with magnetic anisotropy not only exhibit tunable rotation behavior, but also show tunable mechanical enhancement. The deflection force, tensile strength and Young modulus of the iPP/PCL/Fe3O4 nanocomposites with 10 wt% Fe3O4 particles with magnetic anisotropy show nearly 3.2, 3.2 and 2.7 times higher than that of the samples with random dispersion of magnetic nanoparticles, respectively.
Published Version
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