Fabrication of Self-Healable, Robust Superhydrophobic Surfaces Using UV-Crosslinked Nanocomposite Films

Area of Science:

• Materials Science
• Surface Chemistry

Background:

• Superhydrophobic surfaces mimic natural phenomena for applications requiring water repellency.
• Fabricating robust, self-healing superhydrophobic surfaces cost-effectively remains a challenge.

Purpose of the Study:

• To develop a facile, low-cost method for creating robust, self-healable superhydrophobic nanocomposite films.
• To investigate the synergistic effects of nanoparticles and UV-crosslinked polymers on film properties.

Main Methods:

• Solution-processed spray coating technique.
• UV curing of nanocomposite films containing functionalized hydrophobic silica nanoparticles, v-POSS, and bi-thiol hydrocarbon molecules.
• Characterization of surface morphology, superhydrophobicity (water contact angle), stability, and self-healing properties.

Main Results:

• Achieved hierarchical textured structures with low surface energy.
• Films exhibited excellent superhydrophobicity with water contact angles > 150º.
• Demonstrated robust mechanical stability and self-healing capabilities.

Conclusions:

• The proposed method enables the cost-effective fabrication of robust, self-healable superhydrophobic nanocomposite films.
• The combination of hydrophobic nanoparticles and UV-crosslinked polymers is key to achieving desired surface properties.
• These films hold promise for various industrial applications demanding durable, water-repellent, and self-healing surfaces.