The synthesis and electrorheological properties of BaTiO3-coated PMMA microspheres

Suili Peng; Jianhong Wei; Jing Shi; Zhengyou Liu; Wufeng Tang; Weijia Wen

doi:10.1007/s11595-005-1085-3

Journal of Wuhan University of Technology Materials Science Edition ›› 2007, Vol. 22 ›› Issue (1) : 85 -87. DOI: 10.1007/s11595-005-1085-3

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The synthesis and electrorheological properties of BaTiO₃-coated PMMA microspheres

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Abstract

Coated-PMMA microspheres consisting of poly (methyl methacrylate)(PMMA) core and barium titanate (BaTiO₃) shell were synthesized by the modified sol-gel processing and then adopted as an electrorheological (ER) materials. The structure and morphology of coated powders were characterized by SEM and FT-IR; the shear stress of the suspensions of coated-PMMA particles and pure PMMA particles in silicone oil with a 20 vol% were investigated. The results show that the BaTiO₃ coated PMMA microspheres based suspension in silicone oil exhibited typical ER behavior and stronger ER effects

Keywords

surface coating / PMMA / BaTiO₃ / electrorheological (ER) effects

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Suili Peng, Jianhong Wei, Jing Shi, Zhengyou Liu, Wufeng Tang, Weijia Wen. The synthesis and electrorheological properties of BaTiO₃-coated PMMA microspheres. Journal of Wuhan University of Technology Materials Science Edition, 2007, 22(1): 85-87 DOI:10.1007/s11595-005-1085-3

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References

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[1]	Tam W. Y., Yi G. H., Wen W., . New Electrorheological Fluid: Theory and Experiment[J]. Phys. Rev. Lett., 1997, 78: 2 987-2 990.

[2]	Ma H. R., Wen W. J., Tam W. Y., Sheng P. Dielectric Electrorheological Fluids: Theory and Experiment[J]. Adv. Phys., 2003, 52: 343-383.

[3]	Wen W. J., Huang X. X., Yang S. H., . The Giant Electrorheological Effect in Suspensions of Nanoparticles[J]. Nature Materials, 2003, 2: 727-730.

[4]	Akhavan J., Slack K. Coating of a Semi-conducting Polymer for Use in Electrorheological Fluids[J]. Synthetic Metals, 2001, 124: 363-371.

[5]	Hao T. The Interfacial Polarization Induced Electrorehological Effect[J]. J. Colloid Interface Sci., 1998, 206: 240-246.

[6]	Davis L. C. Polarization Force and Conductivity Effects in ER Fluids[J]. J. Appl Phys., 1992, 72: 1 334-1 339.

[7]	Cao K., Yu J., Li B. G., Pan Z. R. Micron-size Uniform Poly(methyl methacrylate) Particles by Dispersion Polymerization in Polar Media[J]. Chem. Eng. J., 2000, 78: 211-215.

[8]	Wei J. H., Shi J., Liu Z. Y. The Conductivity and Temperature Dependence of BaTiO₃ Coated-PAn Based Electrorheological Fluids[J]. Inter. J.Mod. Phys. B, 2005, 19(7–9): 1 423-1 429.

[9]	Qiu Z. Y., Zhang H., Tang Y., . Influence of Polarization Rate and Dielectric Loss on ER Effects[C]. Proc. of 6^th Int. Conf. on ER Fluids and MR Suspensions and Their Applications, 1998. Singapore: World Scientific.

[10]	Lan Y. C., Xu X. Y., Men S. Q., Lu K. Q. The Conductivity Dependence of the Shear Stress in Electrorheological Fluids[J]. Appl. Phys. Lett., 1998, 73: 29 08-2 910.

[11]	Atten P., Boissy C., Foulc J. N. The Role of Conduction in Electrorheological Fluids: from Interaction Between Particles to Structuration of Suspensions[J]. J. Electrostatics, 1997, 40: 5 789-5 797.

[12]	Tang X., Wu C., Conrad H. On the Conductivity Model for the Electrorheological Response of Dielectric Particles with a Conducting Film[J]. J.Appl. Phys., 1995, 78: 4 183-4 188.