Journal of Microencapsulation 2007-02-01

Preparation and properties of electrophoretic microcapsules for electronic paper.

J K Song, H J Choi, I Chin

Index: J. Microencapsul. 24(1) , 11-9, (2007)

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Abstract

This paper shows two types of microcapsules used for electrophoretic display. One is prepared by in-situ polymerization which is based on urea, melamine and formaldehyde and another by complex coacervation, which is composed of gelatin and gum Arabic. Microcapsules attract interests of many research groups for longer lifetime of electrophoretic display by reducing agglomerization or lateral movements of nanoparticles. The gelatin microcapsules were more attractive in providing more uniform microcapsule coverage on electrodes due to their flexibility as compared to the melamine-urea microcapsules. The properties of microcapsules were characterized by FTIR, OM, SEM and TGA. Migration of nanoparticles in the two types of microcapsules was also observed when an electric field was applied.

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