Ternary electrorheological fluids with composite particles dispersed in liquid blends

Keiji Minagawa, Yasunori Aoki, Takeshi Mori, Masami Tanaka

Research output: Contribution to journalArticle

Abstract

The electrorheological (ER) properties were studied with ternary suspensions containing solid and liquid dispersoids in silicone oil (DMS). The solid dispersoid used was polyether/montmorillonite nanocomposite particles in which polyether molecules were intercalated between the layers of montmorillonite. The liquid dispersoid was urethane-modified polyether prepared from 4,4′-diphenylmethane diisocyanate (MDI) and poly(propylene glycol) (PPG). The steady shear viscosity and dynamic viscoelasticity were measured with a rotating parallel disc rheometer equipped with ER measurement system. The binary and ternary mixtures of these solid and liquid dispersoids with DMS, i.e. composite particle/DMS suspension, polyether/DMS liquid blend, and ternary blend containing both dispersoids, showed an increase of viscosity in response to an electric field (positive ER effect). The ER effect of a ternary suspension containing the particles and polyether liquids was larger than those of binary suspension or blend with one of these dispersoids. The ER effect was found to be improved by combination of the solid and liquid dispersoids, although the recovery time of viscosity after removing the electric field became rather longer, which would be due to the partly irreversible macroscopic aggregation of the dispersoids.

Original languageEnglish
Pages (from-to)3987-3992
Number of pages6
JournalInternational Journal of Modern Physics B
Volume20
Issue number25-27
Publication statusPublished - Oct 30 2006

Fingerprint

electrorheological fluids
composite materials
liquids
viscosity
montmorillonite
solid suspensions
diisocyanates
urethanes
rheometers
electric fields
viscoelasticity
silicones
propylene
binary mixtures
glycols
nanocomposites
oils
recovery
shear
molecules

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Condensed Matter Physics

Cite this

Ternary electrorheological fluids with composite particles dispersed in liquid blends. / Minagawa, Keiji; Aoki, Yasunori; Mori, Takeshi; Tanaka, Masami.

In: International Journal of Modern Physics B, Vol. 20, No. 25-27, 30.10.2006, p. 3987-3992.

Research output: Contribution to journalArticle

Minagawa, Keiji ; Aoki, Yasunori ; Mori, Takeshi ; Tanaka, Masami. / Ternary electrorheological fluids with composite particles dispersed in liquid blends. In: International Journal of Modern Physics B. 2006 ; Vol. 20, No. 25-27. pp. 3987-3992.
@article{6e23d5ff0a294c06b05be14a58fa4e04,
title = "Ternary electrorheological fluids with composite particles dispersed in liquid blends",
abstract = "The electrorheological (ER) properties were studied with ternary suspensions containing solid and liquid dispersoids in silicone oil (DMS). The solid dispersoid used was polyether/montmorillonite nanocomposite particles in which polyether molecules were intercalated between the layers of montmorillonite. The liquid dispersoid was urethane-modified polyether prepared from 4,4′-diphenylmethane diisocyanate (MDI) and poly(propylene glycol) (PPG). The steady shear viscosity and dynamic viscoelasticity were measured with a rotating parallel disc rheometer equipped with ER measurement system. The binary and ternary mixtures of these solid and liquid dispersoids with DMS, i.e. composite particle/DMS suspension, polyether/DMS liquid blend, and ternary blend containing both dispersoids, showed an increase of viscosity in response to an electric field (positive ER effect). The ER effect of a ternary suspension containing the particles and polyether liquids was larger than those of binary suspension or blend with one of these dispersoids. The ER effect was found to be improved by combination of the solid and liquid dispersoids, although the recovery time of viscosity after removing the electric field became rather longer, which would be due to the partly irreversible macroscopic aggregation of the dispersoids.",
author = "Keiji Minagawa and Yasunori Aoki and Takeshi Mori and Masami Tanaka",
year = "2006",
month = "10",
day = "30",
language = "English",
volume = "20",
pages = "3987--3992",
journal = "International Journal of Modern Physics B",
issn = "0217-9792",
publisher = "World Scientific Publishing Co. Pte Ltd",
number = "25-27",

}

TY - JOUR

T1 - Ternary electrorheological fluids with composite particles dispersed in liquid blends

AU - Minagawa, Keiji

AU - Aoki, Yasunori

AU - Mori, Takeshi

AU - Tanaka, Masami

PY - 2006/10/30

Y1 - 2006/10/30

N2 - The electrorheological (ER) properties were studied with ternary suspensions containing solid and liquid dispersoids in silicone oil (DMS). The solid dispersoid used was polyether/montmorillonite nanocomposite particles in which polyether molecules were intercalated between the layers of montmorillonite. The liquid dispersoid was urethane-modified polyether prepared from 4,4′-diphenylmethane diisocyanate (MDI) and poly(propylene glycol) (PPG). The steady shear viscosity and dynamic viscoelasticity were measured with a rotating parallel disc rheometer equipped with ER measurement system. The binary and ternary mixtures of these solid and liquid dispersoids with DMS, i.e. composite particle/DMS suspension, polyether/DMS liquid blend, and ternary blend containing both dispersoids, showed an increase of viscosity in response to an electric field (positive ER effect). The ER effect of a ternary suspension containing the particles and polyether liquids was larger than those of binary suspension or blend with one of these dispersoids. The ER effect was found to be improved by combination of the solid and liquid dispersoids, although the recovery time of viscosity after removing the electric field became rather longer, which would be due to the partly irreversible macroscopic aggregation of the dispersoids.

AB - The electrorheological (ER) properties were studied with ternary suspensions containing solid and liquid dispersoids in silicone oil (DMS). The solid dispersoid used was polyether/montmorillonite nanocomposite particles in which polyether molecules were intercalated between the layers of montmorillonite. The liquid dispersoid was urethane-modified polyether prepared from 4,4′-diphenylmethane diisocyanate (MDI) and poly(propylene glycol) (PPG). The steady shear viscosity and dynamic viscoelasticity were measured with a rotating parallel disc rheometer equipped with ER measurement system. The binary and ternary mixtures of these solid and liquid dispersoids with DMS, i.e. composite particle/DMS suspension, polyether/DMS liquid blend, and ternary blend containing both dispersoids, showed an increase of viscosity in response to an electric field (positive ER effect). The ER effect of a ternary suspension containing the particles and polyether liquids was larger than those of binary suspension or blend with one of these dispersoids. The ER effect was found to be improved by combination of the solid and liquid dispersoids, although the recovery time of viscosity after removing the electric field became rather longer, which would be due to the partly irreversible macroscopic aggregation of the dispersoids.

UR - http://www.scopus.com/inward/record.url?scp=33751278967&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33751278967&partnerID=8YFLogxK

M3 - Article

VL - 20

SP - 3987

EP - 3992

JO - International Journal of Modern Physics B

JF - International Journal of Modern Physics B

SN - 0217-9792

IS - 25-27

ER -