Objective.jpg

  • To understand the flow behavior of complex fluids
  • To control the microstructure of complex fluids under fast deformation
  • To develop a practical method to evaluate the flow behavior of complex fluids and to control the whole process effectively
IT_a.jpg

Characterization.jpg

Modification of conventional capillary rheometer
In-situ visualization of complex flow behavior
IT_b.jpg
Characterization of flow instabilities by
determining in-situ pressure fluctuations
IT_c.jpg

Measuring.jpg

Motivation & Objective
IT_d.jpg

Understand and control ink transfer process by analyzing and evaluating forces related with the process in gravure printing.

Relationship between interfacial force and ink transfer ratio
IT_e.jpg

The ink transfer ratio was improved when the interfacial force was larger

Drying.jpg

Coating stress measurement

Deflection measurement with PSD

* PSD: Position Sensing Detector

IT_f.jpg
Stress ? adsorption relation
IT_g.jpg

Viscoelastic.jpg

Drop Jetting Window ? Piezo Axial Vibrator (PAV) result
IT_h.jpg
IT_i.jpg
  • High Mw PEO increases the jet stability by repressing the satellite drop.
  • G'/lG*l is an important quantity that enables the determination of the jetting quality of the fluid.
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