1 Department of Micro- and Nanotechnology, Technical University of Denmark2 Palacky University3 Polymer Micro & Nano Engineering, Department of Micro- and Nanotechnology, Technical University of Denmark4 unknown5 Palacky University
In this study, an impinging jet deposition experiments were performed on synthetic polymer (Zeonor) original and by micro-embossing modified substrates with exactly defined topology as confirmed by AFM and SEM. Deposition experiments were performed at ambient temperature and at selected flow regime of Re=10. As a particles deposited a polystyrene (PS) 1,1μm diameter particles (Sigma–Aldrich) were used having negative charge of −20mV as observed by zeta potential experiments. There was found gradual increase of total number of deposited particles with time reaching steady state number. Obtained kinetic curves were fitted to the theoretical blocking model where characteristic time required to reach the steady state (blocking time) as well as steady state number of deposited particles were calculated.
International Journal of Heat and Mass Transfer, 2014, Vol 78, p. 416-422
Embossing; Contact angle; Kinetics of deposition; Polymer; Zeonor; Polystyrene particles