Tailoring the performance of magnetic elastomers containing Fe₂O₃ decorated carbon nanofiber

Abstract

One important strategy for developing high performance smart materials is to utilize the magnetic properties of elastomers. Here we prepared magnetic elastomer nanocomposites using the latex compounding method followed by in situ methods. Our strategy exploited the synergetic effect of carbon nanofibers (CNFs) and ferric oxide (Fe 2 O 3 ), which, when combined, can improve the dispersion within the elastomer matrix by introducing hybrid nanomaterial networks. When Fe 2 O 3 decorated CNFs (CNF-Fe 2 O 3 ) were embedded in an SBR matrix, they produced a remarkable improvement in the composite material's mechanical and thermal properties. This was attributed to the efficient dispersion of the CNF-Fe 2 O 3 , and the enhanced interfacial interaction between the filler particles and the elastomer matrix. Furthermore, the magnetic properties of the elastomer nanocomposites were modulated by the addition of the prepared CNF-Fe 2 O 3 hybrids. The synergistic reinforcement of SBR achieved by the incorporation of CNF-Fe 2 O 3 hybrids can support the development of high performance magnetic elastomers for applications in electronic appliances, magnetoresistive sensors, actuators, and automotive parts.

A green synthesis of nanocatalysts based on reduced graphene oxide/magnetic nanoparticles for the degradation of Acid Red 1

“…6a), a relatively narrow peak was observed, which aer tting showed that the main contributions are from the C]C (68.6%) in the aromatic ring of the presence of an Fe-C bond was not detected, which would have appeared at around 283 eV. 43 In the O 1s region (Fig. 6b), a wide peak was observed.…”

“…Based on the literature data, the most probable bonding energy of the bond Fe-O-C is within the general range of 531-533 eV. 43 Moreover, there are other publications that state the peak for this bond appears at 529.6 eV (ref. 44 and 45) and that of the Fe-O bond at 529.1 eV.…”

Chain Structure in a Cross-Linked Polyurethane Magnetic Elastomer Under a Magnetic Field

“…We developed a new class of magnetic soft materials that exhibited drastic and reversible changes in the dynamic modulus by weak magnetic fields [5,6,7]. In addition to the viscoelastic property, the magnetic field response of physical properties such as surface property [8,9], electric conductivity [10,11], thermal conductivity [12,13,14], have also been reported. These changes in physical properties by magnetic fields are confirmed results of the change of the inner structure of magnetic elastomers.…”

Production of N‐doped Reduced Graphene Oxide/Fe3O4 Hybrids and Effect of Order of Production Steps on Electrocatalytic Performances for Oxygen Reduction Reaction

“…XPS measurements showed that all three hybrids contained similar amounts (1.2 – 1.4 at%) of N, and these amounts were less than that observed for N‐rG−O (2.9 at%). Pyridinic, pyrrolic, and graphitic N were observed in the deconvoluted XPS spectra of the three hybrids (Figure b) ,,. The deconvoluted XPS C1s spectrum of G−O showed peaks at 284.6, 285.6, 286.3, 287.4 and 288.9 eV, corresponding to sp 2 carbon, C‐OH, C−O, C=O, and O‐C=O, respectively (Figure c) ,.…”

“…Pyridinic, pyrrolic, and graphitic N were observed in the deconvoluted XPS spectra of the three hybrids (Figure b) ,,. The deconvoluted XPS C1s spectrum of G−O showed peaks at 284.6, 285.6, 286.3, 287.4 and 288.9 eV, corresponding to sp 2 carbon, C‐OH, C−O, C=O, and O‐C=O, respectively (Figure c) ,. The peaks for oxygen‐based functional groups were significantly lower in Fe/G−N, Fe/G/N, and G/N−Fe C1 s spectra, which is almost identical to those observed in N‐rG−O.…”