20 October 2009 Preparation and characterization of high contrast electrophoretic display suspension containing charged black-and-white nanoparticles
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Proceedings Volume 7493, Second International Conference on Smart Materials and Nanotechnology in Engineering; 749352 (2009) https://doi.org/10.1117/12.839708
Event: Second International Conference on Smart Materials and Nanotechnology in Engineering, 2009, Weihai, China
Abstract
In this study, TiO2 nanoparticles with sizes ranging from 300- 400nm were modified by two-step dispersion polymerization using poly (styrene-co-divinylbenzene)-methyl methacrylate [P (St-co-DVB)-MMA] as shell. And core, carbon black (CB) nanoparticles with size ranging from 30-50nm and polymer shell poly (methacrylic acid) [PMAA] were prepared by grafting polymerization, too. Modified nanoparticles were characterized on structure, mean particle size and size distribution, morphology with FT-IR, TEM, and image analyzer. Furthermore, modified TiO2 as negatively charged electrophoretic particles and CB nanoparticles as cationically charged electrophoretic particles were homodispersed in tetrachloroethylene (TCE) to make the electrophoretic display suspension with Span-80 as dispersant and OLOA 1200 as charge control agent. The zeta potential and mobility of white (TiO2) and black (CB) charged particles were measured to be -61.4 mV, 9.50×10-6 cm2 /V s and 12.8 mV, 1.98×10-6 cm2 /V s by using an electrophoresis test device, respectively. Final, the electric response behaviors of the electrophoretic display suspension were studied under electrostatic field. The black-and-white particles moved quickly and reversibly inside ITO electrodes while the electric field alternated.
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Xiao-Nan Yao, Xiao-Nan Yao, Jian-Ping Wang, Jian-Ping Wang, Xing-Xiang Zhang, Xing-Xiang Zhang, Xue-Chen Wang, Xue-Chen Wang, } "Preparation and characterization of high contrast electrophoretic display suspension containing charged black-and-white nanoparticles", Proc. SPIE 7493, Second International Conference on Smart Materials and Nanotechnology in Engineering, 749352 (20 October 2009); doi: 10.1117/12.839708; https://doi.org/10.1117/12.839708
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