scholarly journals The effect of surface wettability on the performance of a piezoelectric membrane pump

AIP Advances ◽  
2018 ◽  
Vol 8 (4) ◽  
pp. 045010 ◽  
Author(s):  
Jiantao Wang ◽  
Zhigang Yang ◽  
Yong Liu ◽  
Yanhu Shen ◽  
Song Chen ◽  
...  
Keyword(s):  
Surface Wettability ◽  
Membrane Pump ◽  
Effect Of Surface

Surface Modification Effect of Wettability on the Performance of PDMS-Based Valveless Micropump

2006 ◽  
Vol 326-328 ◽  
pp. 297-300 ◽  
Author(s):  
Woong Cho ◽  
Yong Jun Ko ◽  
Yoo Min Ahn ◽  
Joon Yong Yoon ◽  
Nahm Gyoo Cho
Keyword(s):  
Contact Angle ◽  
Surface Wettability ◽  
Poly Vinyl Alcohol ◽  
Membrane Pump ◽  
Pdms Surface ◽  
Hydrophobic Coating ◽  
Valveless Micropump ◽  
Priming Process ◽  
Coated Surface ◽  
Effect Of Surface

Experimental investigation and numerical simulation on the effect of surface wettability on the performance of a polydimethylsiloxane (PDMS) based diffuser micropump are presented. A valveless micro membrane pump with piezoelectric actuation has been examined. Using a replica molding technique, the valveless micropump was made of PDMS on a Pyrex glass substrate. A thin piezoelectric (PZT) disc was used as an actuator. Poly vinyl alcohol (PVA) and octadecyltrichlorosilane (OTS) coatings, which make the coated surface hydrophilic and hydrophobic, respectively, were used to modify the surface wettability inside the pump. In our experiments, the contact angle of the PDMS surface changed from 96.6 o to 29.1 o and 99.6 o by PVA and OTS coatings, respectively, and the contact angle of glass changed from 33.2 o to 17.5 o and 141.8 o. A self-priming process was numerically simulated in a diffuser element using a computational fluid dynamics program (CFD-ACE+). The results show that fewer gas bubbles were created in the hydrophilic coated pump than in the hydrophobic coated one as time progressed. This agrees well with experimental observations. Steady-state flow rates of the micropump were measured. Compared to the non-coated pump, the flow rate increased slightly with the hydrophobic coating but decreased with the hydrophilic coating. We determine that surface wettability significantly affects the performance of a PDMS-based micropump.

The effect of surface wettability on flow boiling characteristics within microchannels

2021 ◽  
Vol 172 ◽  
pp. 121133
Author(s):  
Konstantinos Vontas ◽  
Manolia Andredaki ◽  
Anastasios Georgoulas ◽  
Nicolas Miché ◽  
Marco Marengo
Keyword(s):  
Flow Boiling ◽  
Surface Wettability ◽  
Effect Of Surface

Protein Immobilization on Epoxy-Activated Thin Polymer Films: Effect of Surface Wettability and Enzyme Loading

Langmuir ◽  
2008 ◽  
Vol 24 (23) ◽  
pp. 13457-13464 ◽  
Author(s):  
Bo Chen ◽  
Nadine Pernodet ◽  
Miriam H. Rafailovich ◽  
Asya Bakhtina ◽  
Richard A. Gross
Keyword(s):  
Polymer Films ◽  
Protein Immobilization ◽  
Surface Wettability ◽  
Thin Polymer Films ◽  
Enzyme Loading ◽  
Thin Polymer ◽  
Effect Of Surface

Effect of Surface Wettability on the Adsorption of Proteins and Detergents

1998 ◽  
Vol 120 (14) ◽  
pp. 3464-3473 ◽  
Author(s):  
George B. Sigal ◽  
Milan Mrksich ◽  
George M. Whitesides
Keyword(s):  
Surface Wettability ◽  
Effect Of Surface
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