Greetings,
I'm trying to make a single e-paper capsule (1cm x 1cm) at home. At first, I tried to charge the TiO2 particles by putting them in H2O with NaOH and then putting that whole solution in baby oil, but it turns out I shouldn't have any water in the whole process. I also tried adding a surfactant (liquid soap) but it also has water. Water is a problem because it forms micelles around the TiO2 particles and prevents proper spreading. How do I charge the TiO2 particles without water (and NaOH). What oil-soluble surfactant I can use that doesn't contain water? Does anyone know any details about how the chemicals of the e-paper display work?
I researched a lot and it turns out the big companies use complicated processes and mixing different chemicals with expensive lab machines to produce the desired charged TiO2 solution. Is there any way I can do it at home?