how to make silver conductive ink ..
The ink is developed by positioning an aqueous remedy of silver nitrate into a flask of drinking water merged with polyacrylic acid (PAA) and diethanolamine (DEA), the capping agent and cutting down agent, respectively. Right after about 20 hrs, the silver nitrate is dissolved, forming particles with a diameter of about 5 nanometers. In order to enlarge the size of the particle to an regular diameter of about 400 nanometers, the flask is put on a heated sonicator, a product that produces superior-depth ultrasound. As soon as cooled, the remedy is poured into a more substantial flask and the thick precipitate, an insoluble stable, that is fashioned is scraped out. From there, ethanol is added to coagulate the particles, or modify the particles to a stable point out. Most of the supernatant, the liquid lying above a layer of the precipitate, is then poured out so that the remaining liquid can be centrifuged, or separated. Right after the method of centrifugation, the particles are put back in drinking water and compelled by a syringe filter to remove needless particles in the remedy. Following, hydroxyethyl cellulose (HEC) is added as a binder and the whole mixtures is homogenized. The solvents are allowed to evaporate right until the ink has a desired viscosity. or thickness.[two]
As soon as the ink is developed, a roller ball pen is dismantled and cleaned so that the ink can be put inside using a flat tip spatula. Right after changing the roller ball tip, a couple blasts of compressed air is shot from the back end to power the ink into the tip. The outer address of the pen is put back on and the prototype of the Circuit Scribe is developed.
Post time: Feb-06-2017