Performance enhancement of carbonyl iron-based magnetorheological elastomers through iron-doped multi-walled carbon nanotubes reinforcement
Elliza Tri Maharani, Jong-Seok Oh, Seung-Bok Choi
TL;DR
This study shows that adding iron-doped carbon nanotubes improves the stiffness and damping of magnetorheological elastomers, making them better for vibration control in industries like automotive and construction.
Contribution
The novel use of 50 wt% Fe-MWCNTs significantly enhances the magnetorheological effect by 22.5% compared to conventional CIPs-based MREs.
Findings
Fe-MWCNTs increased the storage and loss modulus of MREs, especially at 3 A (0.472 Tesla).
The 50 wt% Fe-MWCNTs sample showed the highest MR effect at 234%.
Fe-MWCNTs offer promising potential for vibration-damping applications in various industries.
Abstract
This paper aims to explore the potential of iron-doped multi-walled carbon nanotubes (Fe-MWCNTs) as additives for enhancing the performance of magnetorheological elastomers (MREs). We investigated carbonyl iron particles (CIPs)-based MREs reinforced with Fe-MWCNTs at doping contents of 10 wt% and 50 wt%. The fabricated samples were prepared using silicone rubber as the matrix and characterized using transmission electron microscopy (TEM), high-resolution field emission scanning electron microscopy (HR-FESEM), X-ray diffraction (XRD), vibrating sample magnetometer (VSM), and rheometer. The results showed that the addition of Fe-MWCNTs enhanced the stiffness and damping performance of MREs, as the increase in storage modulus and loss modulus, respectively, especially at a current of 3 A (0.472 Tesla). Furthermore, the MRE incorporating 50 wt% Fe-MWCNTs exhibited the highest MR effect…
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Taxonomy
TopicsVibration Control and Rheological Fluids · Dielectric materials and actuators · Nonlocal and gradient elasticity in micro/nano structures