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Preparation of titanium dioxide nano-particles modified with poly (methyl methacrylate) and its electrorheological characteristics in Isopar L

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Abstract

In this paper, we reported a novel non-aqueous electrorheological (ER) fluid structured by TiO2 nano-particle-modified poly (methyl methacrylate) (PMMA/TiO2) dispersed in low viscosity Isopar L and its electrorheological behaviors were researched. Titanium dioxide nano-particles modified with poly (methyl methacrylate) were prepared via in situ polymerization and characterized by Fourier transform infrared, thermogravimetry, and transmission electron microscopy. The thickness of the cladding layer of nano-titanium dioxide surface was about 2∼3 nm, and the cladding rate was 1.437 %. A non-aqueous electrorheological (ER) fluid was constituted by PMMA/TiO2 particles dispersed in Isopar L. The influence of the electric field intensity, the mass concentration of the PMMA/TiO2, and the temperature on the electrorheological properties of ER fluid were discussed, respectively. The research results showed that the ER fluid performed a well rheological property when an external electric field was applied, and with the increase of the electric field intensity, from 0 to 4.5 kV/mm, the shear stress was increased from about 3 to 30 Pa. Meanwhile, the electrorheological effect and shear stress were also strengthened with temperature elevated, and the mass concentration of PMMA/TiO2 particles increased in dispersed system, respectively.

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Acknowledgments

This work was financially supported by the National Natural Science Foundation of China (No. 21102098) and the National High Technology Research and Development Program of China (863 Program, No. 2013AA032003).

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Authors and Affiliations

  1. School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China

    Yanping Jiang, Xianggao Li, Shirong Wang & Yin Xiao

  2. Collaborative Innovation Center of Chemical Science and Engineering, Tianjin, 300072, People’s Republic of China

    Yanping Jiang, Xianggao Li, Shirong Wang & Yin Xiao

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  1. Yanping Jiang
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  2. Xianggao Li
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  3. Shirong Wang
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  4. Yin Xiao
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Correspondence to Xianggao Li.

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Jiang, Y., Li, X., Wang, S. et al. Preparation of titanium dioxide nano-particles modified with poly (methyl methacrylate) and its electrorheological characteristics in Isopar L. Colloid Polym Sci 293, 473–479 (2015). https://doi.org/10.1007/s00396-014-3434-2

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  • DOI: https://doi.org/10.1007/s00396-014-3434-2

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