On the role of energy barriers in determining contact angle hysteresis

2006 ◽  
Vol 127 (2) ◽  
pp. 55-66 ◽  
Author(s):  
J. Long ◽  
P. Chen
Keyword(s):  
Contact Angle ◽  
Contact Angle Hysteresis ◽  
Energy Barriers

scholarly journals Role of contact-angle hysteresis for fluid transport in wet granular matter

2015 ◽  
Vol 91 (4) ◽  
Author(s):  
Roman Mani ◽  
Ciro Semprebon ◽  
Dirk Kadau ◽  
Hans J. Herrmann ◽  
Martin Brinkmann ◽  
...  
Keyword(s):  
Contact Angle ◽  
Fluid Transport ◽  
Contact Angle Hysteresis ◽  
Granular Matter

SUPERHYDROPHOBIC SURFACES FOR WATER-REPELLENT OR SELF-CLEANING BEHAVIOR: CHEMICAL EFFECT

2009 ◽  
Vol 16 (05) ◽  
pp. 645-652
Author(s):  
Y. P. ZHOU ◽  
Z. W. LIN ◽  
J. BROWN
Keyword(s):  
Contact Angle ◽  
Thermodynamic Analysis ◽  
Contact Angle Hysteresis ◽  
Superhydrophobic Surfaces ◽  
Chemical Effect ◽  
Water Repellent ◽  
Cleaning Behavior ◽  
Self Cleaning ◽  
Intrinsic Contact Angle

In this study, a thermodynamic analysis is conducted to investigate the chemical effect, in terms of intrinsic contact angle (CA), on the superhydrophobic behavior. It is theoretically revealed that the essential effect of intrinsic CA is to promote the composite transition. In particular, a large intrinsic CA more than 90° is necessary for such transition. Furthermore, for a pillar system with an intrinsic CA smaller than 90°, composite states are not impossible but is thermodynamically unstable. Once composite states are achieved, the advancing or maximum CA always approaches 180° whether an intrinsic CA is larger or smaller than 90°. In addition, the role of intrinsic CA in the water-repellent or self-cleaning behavior such as contact angle hysteresis (CAH) and equilibrium CA has been discussed in detail.

A NEW APPROACH TO INVESTIGATE CONTACT ANGLE HYSTERESIS

2018 ◽  
Author(s):  
Qiao Liu ◽  
Abbasali Abouei Mehrizi ◽  
Hao Wang
Keyword(s):  
Contact Angle ◽  
Contact Angle Hysteresis ◽  
New Approach

Drop impact on solids: contact-angle hysteresis filters impact energy into modal vibrations

2021 ◽  
Vol 923 ◽  
Author(s):  
Vanessa R. Kern ◽  
Joshua B. Bostwick ◽  
Paul H. Steen
Keyword(s):  
Contact Angle ◽  
Impact Energy ◽  
Contact Angle Hysteresis ◽  
Drop Impact

Abstract

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