Molecular Crystals and Liquid Crystals · 2006 · 11 citations · 8 references
Natural SciencesChemical EngineeringMaterials ScienceColloid ScienceNanomaterialsPolymer ChemistryNanoparticle CharacterizationNanoparticle DispersionsNanoparticle FormulationsNanoparticle StabilityNanoparticle SurfacesPolymeric NanomaterialsElectrophoretic TransportMicrocapsule SizeMicroencapsulation ProcessesNanocapsule SizeNanoparticle StabilizationPolymeric MicrocapsulesPolymeric NanocapsulesThermal Stability
ABSTRACT Microencapsulation of electrophoretic dispersion is one of the key steps in realizing the portable electrophoretic display technique, electronic paper. In this study, electrophoretic TiO2 nanoparticles were uniformly dispersed in a dielectric medium of halocarbon oil and the TiO2 based core material was emulsified using a polymeric surfactant of poly(sodium 4-styrene sulfonic acid) (PSSA). After the colloid particles were stabilized, the microencapsulation of the core materials was accomplished by the polycondensation of melamine/urea-formldehyde prepolymer. Average diameter of the microcapsules obtained was about 50 μm and their thermal stability was measured by TGA. The surface morphology of the microcapsule was dependent on the molar ratio of melamine/urea to formaldehyde and the water content.
8
An electrophoretic ink for all-printed reflective electronic displays
B. Comiskey, J. D. Albert, Hidekazu Yoshizawa et al. · Nature · 1998 · 1.1K citations
Natural Sciences, Materials Engineering, Materials Science +10
Flexible active-matrix electronic ink display
Y. Chen, Joanna Au, Peter T. Kazlas et al. · Nature · 2003 · 597 citations