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Abstract To improve the dispersion stability of magnetic microspheres, polyindole (PIn) was adopted as a shell material to encapsulate micro-spherical carbonyl iron (CI) core particles using 4-aminobenzoic acid as a… Click to show full abstract
Abstract To improve the dispersion stability of magnetic microspheres, polyindole (PIn) was adopted as a shell material to encapsulate micro-spherical carbonyl iron (CI) core particles using 4-aminobenzoic acid as a grafting agent. The coated morphology of the CI/PIn particles was observed by scanning electron microscopy and the coating was confirmed by Fourier transform infrared spectroscopy. The magnetorheological (MR) properties were examined using a rotational rheometer equipped with a plate-to-plate geometry and different magnetic field strengths. The improved dispersion stability of the CI/PIn particle-based MR fluid was confirmed using a Turbiscan.
Journal Title: Journal of Industrial and Engineering Chemistry
Year Published: 2018
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