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Assembly of Graphene Platelets for Bioinspired, Stimuli-Responsive, Low Ice Adhesion Surfaces
Yuequn Fu1, Senbo Xiao1, Bjørn Helge Skallerud1
1NTNU Nanomechanical Lab, Department of Structural Engineering, Norwegian University of Science and Technology (NTNU), Trondheim 7491, Norway.
ACS Omega
|April 6, 2022
Summary
Researchers developed fish-scale-like surfaces using graphene platelets. These surfaces reduce ice adhesion by 50% through sequential rupture, enabling easier ice detachment for advanced anti-icing applications.
Area of Science:
- Materials Science
- Surface Engineering
- Tribology
Background:
- Anti-icing and deicing materials are crucial for various industries.
- Fish-scale-inspired structures demonstrate effective ice adhesion weakening through sequential rupture.
- Graphene platelets offer tunable properties for advanced material design.
Purpose of the Study:
- To design and fabricate novel fish-scale-like surfaces using graphene platelets.
- To investigate the mechanism of sequential rupture for reducing ice adhesion strength.
- To evaluate the performance of these surfaces under various mechanical stresses.
Main Methods:
- Biomimetic arrangement of graphene platelets to create hierarchical surface structures.
- Fabrication of surfaces with varying graphene platelet packing densities.
- Atomistic tensile and cyclic shearing tests to measure ice adhesion strength and surface stability.
Main Results:
- All fabricated surfaces exhibited at least a 50% reduction in ice adhesion strength.
- Sequential rupture mechanism effectively decoupled ice-surface interactions from overall adhesion.
- High packing density of graphene platelets led to stable, reversible surface morphology and reproducible deicing performance.
Conclusions:
- Fish-scale-like graphene surfaces offer a promising strategy for efficient anti-icing and deicing.
- The study provides insights into ice adhesion mechanics at the nanoscale.
- Bioinspired, stress-responsive surfaces can be advanced through understanding these principles.
