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

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

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Metadaten
Author:Andrea Stoll, Matthias Mayer, Gareth J. MonkmanORCiDGND, Mikhail Shamonin (Chamonine)ORCiDGND
DOI:https://doi.org/10.1002/app.39793
ISSN:1097-4628
ISSN:0021-8995
Parent Title (English):Journal of applied polymer science
Publisher:Wiley
Place of publication:New York, NY
Document Type:Article
Language:English
Year of first Publication:2014
Release Date:2022/11/24
Article Number:39793
Institutes:Fakultät Elektro- und Informationstechnik
Fakultät Elektro- und Informationstechnik / Labor Intelligente Materialien und Strukturen
Fakultät Elektro- und Informationstechnik / Mechatronics Research Unit (MRU)
Begutachtungsstatus:peer-reviewed
research focus:Produktion und Systeme
Licence (German):Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG