Robust Transparent Photothermal Omniphobic Coating for Efficient Anti/Deicing and Antifogging

Area of Science:

• Materials Science
• Surface Chemistry
• Nanotechnology

Background:

• Icing and fogging on optical surfaces cause significant issues.
• Existing photothermal coatings often lack transparency and durability.
• Developing effective anti-icing and antifogging solutions remains a challenge.

Purpose of the Study:

• To create a robust, transparent, and photothermal omniphobic coating.
• To address the limitations of current anti-icing and antifogging technologies.
• To provide a practical solution for transparent substrates.

Main Methods:

• Fabrication of a coating using photothermal polypyrrole nanoparticles within silica networks.
• Grafting polydimethylsiloxane (PDMS) brushes onto the silica layer for omniphobicity.
• Utilizing a simple dip-coating technique for application.

Main Results:

• The coating exhibits tunable transparency and photothermal properties.
• Demonstrated excellent anti-icing and de-icing capabilities due to "liquid-like" PDMS brushes.
• Achieved outstanding mechanical wear resistance and self-lubricating properties over thousands of cycles.

Conclusions:

• The developed coating offers a feasible approach for anti-icing and antifogging on transparent materials.
• The combination of photothermal and omniphobic properties enhances performance.
• The coating's robustness and transparency make it suitable for practical applications.