Microscale investigation on interfacial slippage and detachment of ice from soft materials
OPEN ACCESS
Loading...
Author / Producer
Date
2022-04-01
Publication Type
Journal Article
ETH Bibliography
yes
Citations
Altmetric
OPEN ACCESS
Data
Rights / License
Abstract
Surface icing is detrimental to applications ranging from transportation to biological systems. Soft elastomeric coatings can engender remarkably low ice adhesion strength, but mechanisms at the microscale and resulting ice extraction outcomes need to be understood. Here we investigate dynamic ice-elastomer interfacial events and show that the ice adhesion strength can actually vary by orders of magnitude due to the shear velocity. We study the detailed deformation fields of the elastomer using confocal traction force microscopy and elucidate the underlying mechanism. The elastomer initially undergoes elastic deformation having a shear velocity dependent threshold, followed by partial relaxation at the onset of slip, where velocity dependent "stick-slip" micropulsations are observed. The results of the work provide important information for the design of soft surfaces with respect to removal of ice, and utility to fields exemplified by adhesion, contact mechanics, and biofouling.
Permanent link
Publication status
published
External links
Editor
Book title
Journal / series
Volume
9 (4)
Pages / Article No.
1222 - 1231
Publisher
Royal Society of Chemistry
Event
Edition / version
Methods
Software
Geographic location
Date collected
Date created
Subject
Organisational unit
03462 - Poulikakos, Dimos (emeritus) / Poulikakos, Dimos (emeritus)
Notes
Funding
669908 - Pathways to Intrinsically Icephobic Surfaces (EC)