Magnetorheological fluid

H - Electricity – 01 – F

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H01F 1/44 (2006.01)

Patent

CA 2305360

A magnetorheological (MR) fluid including magnetically soft particles suspended in a carrier solvent is disclosed. The MR fluid also includes additive particles of smaller size than the magnetically soft particles and a bridging polymer. The additive particles and polymer form a gel-like material which provides a blanket or coating around the magnetically soft particles, as shown by the figure. The MR fluids possess improved stability and redispersibility, as well as favorable mechanical properties.

Liquide magnétorhéologique (MR) contenant des particules magnétiques douces en suspension dans un véhicule solvant. Ce liquide MR contient également des particules supplémentaires de dimension inférieure à celle des particules magnétiques douces, ainsi qu'un polymère de liaison. Ces particules supplémentaires et ce polymère constituent un matériau gélifié créant un revêtement autour des particules magnétiques douces, comme l'illustre la figure. Ce liquide MR possède des caractéristiques améliorées de stabilité et de redispersion, ainsi que des propriétés mécaniques favorables.

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