PS, Nylon6, PC, and PMMA which are dissolved by solvents such as THF, Formic acid, and acetone are used for manufacturing rough surface. We varied several parameters, such as pressure, spraying distance, and spraying time to study the effect of parame...
PS, Nylon6, PC, and PMMA which are dissolved by solvents such as THF, Formic acid, and acetone are used for manufacturing rough surface. We varied several parameters, such as pressure, spraying distance, and spraying time to study the effect of parameters to the surface topology and sprayed-particle adhesion. Firstly, via spin coating, we prepared PS, Nylon6, PC, PMMA thin films to be sprayed. If we sprayed the dissolved polymer onto slide glass directly, the sprayed-particle adhesion to the surface of glass is very weak. Therefore, we make thin films on the slide glass with the same polymer as the spraying dissolved polymer. After that, we sprayed the dissolved polymer onto the thin film of same polymer with varying parameters, i.e., pressure, spraying distance, and spraying time. Using the sprayed surface, we characterize the topology with SEM and surface energy with contact angle measurement.