Development of Electrorheological Gel (ERG) with Vibration-proof Effect at Low Frequency

具有低频防振效果的电流变凝胶（ERG）的开发

• 批准号: 13650749
• 负责人: HANAOKA Ryoichi
• 金额: $ 1.73万
• 依托单位: KANAZAWA INSTITUTE OF TECHNOLOGY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13650749/
• 关键词: ER fluid; ER gel; silicone oil; hydrosilylation reaction; ER effect; complex shear modulus; loss tangent; viscoelastic behavior; 粒子分散系ER流体; シリコーン油; ERシリコーンゲル; 粘弾性特性; 粒子の鎖状; 無機・有機複合構造

The problem of the poor dispersion stability of particles in the ER fluids can be neglected by the gelation of the ER fluid. In the present study, the silicone oil-based electrorheological (ER) gel containing the non-aqueous fine particles was newly created. After these particles were dispersed at 30wt% in the dimethylsilicone oil, the ER gel was produced by the hydrosilylation reaction in the mixture of the modified silicone oil. This reaction could considerably be promoted by heating at 90℃.The behavior of particles in the ER gel was observed by a microscopical method. When an electric field was applied to the ER gel, the gap between the electrodes was bridged by the chains of particles arranged in the direction of the electric field. The dynamic properties of the ER gel were also examined under the applied dc electric field up to 2kV/mm using the oscillating theometer with the low frequencies of 1Hz or less. Consequently, the electroviscoelastic effect of the gel could be controlled by the electric field strength. This effect of the ER gel was larger than that of a suspension dispersed the same particles in an dimethylsilicone oil.In this work, we conclude that the ER gel will be helpful in the development of vibration-proof devices for a small-amplitude oscillatory shear at a low frequency.

电流变液中粒子分散稳定性差的问题可以通过电流变液的凝胶化而忽略。在本研究中，新创建的硅油基电流变（ER）凝胶含有非水微粒。在将这些颗粒以30wt%分散在二甲基硅油中之后，通过在改性硅油的混合物中的硅氢加成反应制备ER凝胶。90℃加热可显著促进该反应的进行。当向ER凝胶施加电场时，电极之间的差距被沿电场方向排列的颗粒链桥接。在2kV/mm的直流电场作用下，用低频振荡流变仪研究了凝胶的动态特性，结果表明，凝胶的电粘弹效应可由电场强度控制。这种效果的ER凝胶是大于一个悬浮液中分散相同的颗粒在一个二甲基硅oil.In这项工作中，我们得出结论，ER凝胶将有助于在一个小振幅的振荡剪切在一个低频率的防振装置的发展。

项目成果

R.Hanaoka, S.Takata, H.Fujiita, T.Fukami: "Electroviscoelastic Properties in ER Gel of Disperse System under DC Electric Field"International Journal of Modern Physics B. Vol.16,Nos.17&18. 2433-2439 (2002)

R.Hanaoka、S.Takata、H.Fujiita、T.Fukami：“直流电场下分散体系 ER 凝胶的电粘弹性”国际现代物理学杂志 B. 第 16 卷第 17 期

花岡良一, 高田新三, 中澤優一, 深見正, 桜井宏治: "分散系シリコーンゲルの粘弾性特性に関する電界の効果"電気学会論文誌A. Vol.122-A, No.2. 157-163 (2002)

Ryoichi Hanaoka、Shinzo Takada、Yuichi Nakazawa、Tadashi Fukami、Koji Sakurai：“电场对分散硅凝胶粘弹性的影响”日本电气工程师学会会刊 A. Vol.122-A，No.2。 157-163（2002）

中澤優一, 花岡良一, 高田新三, 深見正, 石橋亮: "ERゲルの粘弾性特性に及ぼす分散粒子粒径の効果"平成14年電気関係学会北陸支部連合大会講演論文集. A-93. 101 (2002)

Yuichi Nakazawa、Ryoichi Hanaoka、Shinzo Takada、Tadashi Fukami、Ryo Ishibashi：“分散粒径对 ER 凝胶粘弹性的影响”2002 年电气工程学会北陆分会会议记录 A-93。

Y. Miyagawa, R. Hanaoka, S. Takata, T. Fukami and A. Ishibashi: "Effect Particle Diameter on ER Effects in ER Fluid of Disperse System"Proceedings of the Joint Conference of Hokuriku Chapters of Institutes of Electrical Engineers, Japan. A-92. 100 (2002)

Y. Miyakawa、R. Hanaoka、S. Takata、T. Fukami 和 A. Ishibashi：“Effect Particle Diameter on ER Effects in ER Fluid of Disperse System”日本电气工程师学会北陆分会联席会议论文集。

R.Hanaoka, S.Takata, H.Fujita, T.Fukami: "Electroviscoelastic Properties in ER Gel of Disperse System under DC Electric Field"International Journal of Modern Physics B. Vol.16, Nos.17&18. 2433-2439 (2002)

R.Hanaoka、S.Takata、H.Fujita、T.Fukami：“直流电场下分散体系 ER 凝胶的电粘弹性”国际现代物理学杂志 B. 第 16 卷，第 17 期