Microencapsulated electric ink using gelatin/gum arabic

D. W. Wang; X. P. Zhao

doi:10.1080/02652040802127806

Microencapsulated electric ink using gelatin/gum arabic

D. W. Wang, X. P. Zhao

NW Polytechnical Uuniversity

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

Gelatin/gum arabic (GA) microcapsules were prepared by a convenient one step complex coacervation, in which TiO₂ nanoparticles modified by stearic acid (SA) and homodispersed in tetrachloroethylene (TCE) were encapsulated. The modified TiO₂ was characterized by Fourier transform infrared spectroscopy (FT-IR), dynamic light scattering (DLS) and optical microscopy, etc. And the effects of various microencapsulation parameters were also experimentally investigated. It was shown that SA-coated TiO₂ nanoparticles are capable of subsidence-resistance in TCE as the SA is bonded to the surface of TiO₂ nanoparticles through esterification. In addition, under the optimal encapsulated condition, the microcapsules can be prepared with regular morphology and transparent and smooth surface. Finally, the particles in microcapsules possessed reversible response to dc electric field and the response time is ∼280 ms.

Original language	English
Pages (from-to)	37-45
Number of pages	9
Journal	Journal of Microencapsulation
Volume	26
Issue number	1
DOIs	https://doi.org/10.1080/02652040802127806
State	Published - 2009
Externally published	Yes

Keywords

Complex coacervation
Electric ink
Electrophoresis display
Microcapsules

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10.1080/02652040802127806

Cite this

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abstract = "Gelatin/gum arabic (GA) microcapsules were prepared by a convenient one step complex coacervation, in which TiO2 nanoparticles modified by stearic acid (SA) and homodispersed in tetrachloroethylene (TCE) were encapsulated. The modified TiO2 was characterized by Fourier transform infrared spectroscopy (FT-IR), dynamic light scattering (DLS) and optical microscopy, etc. And the effects of various microencapsulation parameters were also experimentally investigated. It was shown that SA-coated TiO2 nanoparticles are capable of subsidence-resistance in TCE as the SA is bonded to the surface of TiO2 nanoparticles through esterification. In addition, under the optimal encapsulated condition, the microcapsules can be prepared with regular morphology and transparent and smooth surface. Finally, the particles in microcapsules possessed reversible response to dc electric field and the response time is ∼280 ms.",

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AU - Wang, D. W.

AU - Zhao, X. P.

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AB - Gelatin/gum arabic (GA) microcapsules were prepared by a convenient one step complex coacervation, in which TiO2 nanoparticles modified by stearic acid (SA) and homodispersed in tetrachloroethylene (TCE) were encapsulated. The modified TiO2 was characterized by Fourier transform infrared spectroscopy (FT-IR), dynamic light scattering (DLS) and optical microscopy, etc. And the effects of various microencapsulation parameters were also experimentally investigated. It was shown that SA-coated TiO2 nanoparticles are capable of subsidence-resistance in TCE as the SA is bonded to the surface of TiO2 nanoparticles through esterification. In addition, under the optimal encapsulated condition, the microcapsules can be prepared with regular morphology and transparent and smooth surface. Finally, the particles in microcapsules possessed reversible response to dc electric field and the response time is ∼280 ms.

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KW - Electric ink

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Microencapsulated electric ink using gelatin/gum arabic

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Keywords

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