Study on Magnetic and Physical Mechanical Properties of NBR Composites Filled with Nano-Sro.6Fe 2 O 3

Abstract

In this study, we used nano-SrO.6Fe₂O₃ particles as modified filler to prepare nitrile butadiene rubber/SrO.6Fe₂O₃ composites. Surface microstructure of the composites was observed using scanning electron microscope, the distribution of nano-SrO.6Fe₂O₃ particles was measured by energy-dispersive X-ray spectrometer, and magnetic properties of the composites were tested by a U5-10 magnetizer. The results showed that nano-SrO.6Fe₂O₃ particles were closely inosculated with nitrile butadiene rubber and well distributed in the nitrile butadiene rubber matrix. With adding different mass fractions of nano-SrO.6Fe₂O₃, stress at 300% definite elongation, maximum elongation, and tensile strength of the composites were slightly decreased, but shore A hardness of the composites was markedly improved. Magnetic properties of the composites were uncorrelated to the degree of scatter of nano-SrO.6Fe₂O₃ particles, and relied only on mass fraction of nano-SrO.6Fe₂O₃ particles. The nitrile butadiene rubber/SrO.6Fe₂O₃ composites have good soft magnetism performance, which laid the foundation for further application of the composites.

Keywords

NBR/SrO.6Fe2O3 composites magnetic properties surface microstructure physical mechanical properties.

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