Durable Photothermal Superhydrophobic Coatings with Amorphous-Polymer Composite Structure Enhance Anti-Icing and...

Area of Science:

• Materials Science
• Surface Science
• Nanotechnology

Background:

• Photothermal superhydrophobic surfaces are promising for anti-icing but degrade under harsh conditions.
• Abrasion can compromise surface hydrophobicity and anti-icing performance.

Purpose of the Study:

• To develop a robust photothermal superhydrophobic coating with enhanced environmental durability.
• To improve the mechanical stability and long-term performance of anti-icing surfaces.

Main Methods:

• Fabrication of an amorphous coating acting as armor for a photothermal superhydrophobic filler.
• Characterization of surface properties including water contact angle and photothermal conversion efficiency.
• Comprehensive durability testing against abrasion, chemicals, temperature, water impact, and corrosion.

Main Results:

• The coating exhibited excellent water resistance (WCA: 158.2°) and photothermal conversion (up to 76.6 °C under 1 sun).
• Demonstrated significant icing delay and rapid ice melting capabilities.
• The coating maintained performance after rigorous durability assessments.

Conclusions:

• The developed coating provides a low-cost, efficient, and durable solution for photothermal superhydrophobic anti-icing.
• The armor structure effectively protects the inner filler, ensuring long-term performance.
• This work facilitates large-scale preparation of robust anti-icing surfaces.