| 초록 |
To fabricate uniform nano/micro size beads by using an electrospraying process, PMMA polymer solution was ejected from a reservoir tip and formed into a suspended droplet by force of controllable syringe pumping. As a complex electric field and newly designed electrodes connected with a nozzle were applied, uniform microsize beads of the solution were obtained from an apex of the Taylor-cone at a nozzle and were traveled towards a target electrode which could provide non-uniform electric field. Moreover by using a 2 axis x-y stage, we could obtain uniform size PMMA beads which were deposited on the thin poly(ethylene terephthalate) film. To understand the effect of process variables, applied field conditions and rheological properties, the morphological pictures of the deposited particles were investigated through the optical and scanning electron microscope. |
