Investigation on magnetorheological elastomers based on natural rubber

By Lin Chen, Xiu-mei Gong, Wanquan Jiang, Jingjing Yao, Huaxia Deng, Weihua Li. 2007

304 citations recorded by the source corpus.

Magnetorheological Elastomers (MR Elastomers or MREs) are a kind of novel smart material, whose mechanical, electrical, magnetic properties are controllable under applied magnetic fields. They have attracted increasing attentions and broad application prospects. But conventional MREs are limited to wide applications because their MR effects and mechanical performances are not high enough. This paper aims to optimize the fabrication method and to fabricate good natural rubber based MREs with high modulus by investigating the influences of a variety of fabrication conditions on the MREs performances, such as matrix type, external magnetic flux density, and temperature, plasticizer and iron particles. Among these factors, the content of iron particles plays a most important contribution in shear modulus. When the iron particle weight fraction is 80% and the external magnetic flux density is 1 T, the field-induced increment of shear modulus reaches 3.6 MPa, and the relative MR effect is 133%. If the iron weight fraction increases to 90%, the field-induced increment of shear modulus is 4.5 MPa. This result has exceeded the best report in the literatures researching the MREs on the same kind of matrix. The dynamic performances of MREs were also experimentally characterized by using a modified Dynamic Mechanical Analyzer (DMA) system. The effects of strain amplitude and driving frequency on viscoelastic properties of MREs were analyzed.

Subfields: Civil and Structural Engineering

View Paper: https://www.semanticscholar.org/paper/d2886c8fe3cace4bc438e2d4bf59ca322c72326b

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In Civil and Structural Engineering

Citations in the corpus

Microstructures and viscoelastic properties of anisotropic magnetorheological elastomers (2007, methodology): “The field-dependent mechanical properties of the MREs have been investigated experimentally [6–8].”
A state of art on magneto-rheological materials and their potential applications (2018, background): “…anisotropic MRE, the magnetic field is needed to apply to the polymer composite materials to make aligned particle structure during the crosslinking and finally, these particles become locked in place upon the final cure (Chen et al., 2007; Ginder et al., 2002; Hu et al., 2005; Shiga et al., 1995).”
Effect of carbon black on the mechanical performances of magnetorheological elastomers (2008, unknown): “Many groups have proved that the magnetic particle content plays a very important role in the MR effect [12,13,15].”
Study on the damping properties of magnetorheological elastomers based on cis-polybutadiene rubber (2008, background): “The matrix includes silicon rubber, natural rubber, polyurethane sealant, acrylonitrile, and polybutadiene as well as their blends [2–6].”