Evaluation of highly compliant magneto-active elastomers with colossal magnetorheological response

摘要: Highly compliant elastomers with a shear storage modulus as low 25 Pa are prepared using commercially available silicone, plasticizer, and tactile mutator silicone additive. They used matrix material for magneto-active (MAEs) carbonyl iron contents between 0 85 wt %. In the absence of an external magnetic field, MAEs based on two selected mixtures ranges ∼100 ∼2000 Pa. Addition to mixture results in long post-cure period depending curing temperature initial mixture. presence presented exhibit strong magneto-induced change resulting colossal magnetorheological effect >106 % which is ∼30 times higher than previously reported values. The interest applications such cell substrates magnetically tunable rigidity. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 39793.