Robust Stick-and-Play Photothermal Icephobic Film with Bioinspired Insulation Cells

Area of Science:

• Materials Science
• Surface Engineering
• Nanotechnology

Background:

• Ice accretion poses significant challenges for real-world applications.
• Existing photothermal and micro/nanostructured anti-icing technologies face limitations in light dependency and scalability.

Purpose of the Study:

• To develop a robust and efficient photothermal film for anti-icing and de-icing applications.
• To overcome the limitations of current technologies by creating a bioinspired, stick-and-play solution.

Main Methods:

• Design of thermal-management hydrophobic microcells (THMC) using candle soot and diatomite, inspired by lotus seedpods.
• Integration of THMCs into a PDMS substrate to create a functional film.
• Utilizing COMSOL simulations to analyze thermal management effects.
• Incorporating adjustable milli-suction cups for stick-and-play functionality.

Main Results:

• The THMC film demonstrated synergistic photothermal and insulation effects, increasing heating rate by 20% and equilibrium temperature by 10%.
• The film exhibited durable hydrophobicity (148.7°) and photothermal effect (79.9 °C) after repeated abrasion.
• The stick-and-play functionality allowed effective adhesion to diverse surfaces under various conditions.

Conclusions:

• The developed THMC film offers a promising strategy for robust and efficient photothermal anti-icing and de-icing.
• The bioinspired design and stick-and-play functionality enable flexible application on various surfaces, addressing real-world challenges.