Femtoliter droplets captured in flight
- mversluis
- Mar 27, 2020
- 1 min read
In this new publication in Physical Review Applied we report on the ultra high-speed recording of femtoliter satellite droplets that are formed from the breakup of the secondary tail ligament of inkjet droplets that detach from the meniscus. The formation of primary picoliter satellite droplets is prevented through the use of special piezo driving waveforms, that give the tail a kickstart to merge with the head of the droplet. However, such a high velocity of the tail creates a thin secondary tail that breaks up and forms small femtoliter droplets which may contaminate the printer. Here, we present solutions to mitigate this problem, that relate to the stability of the secondary tail that decreases with a decrease in stretching rate and ink viscosity.
Secondary tail formation and breakup in piezo-acoustic inkjet printing: femtoliter droplets captured in flight.
Arjan Fraters, Roger Jeurissen, Marc van den Berg, Hans Reinten, Herman Wijshoff, Detlef Lohse, Michel Versluis, and Tim Segers.
Phys. Rev. Appl. 13, 024075 (2020).
운동 후 근육통 때문에 고생했는데, 전문 서비스의 출장마사지 받으니 통증이 상당히 완화되었습니다. 집에서 편리하게 받을 수 있고, 마사지사의 정확한 손길 덕분에 근육 회복 속도도 빨라졌습니다. 피로 해소에 큰 도움이 되었어요.
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