POS4-1091
Hierarchical Superhydrophobic Surfaces Fabricated via Colloidal Crystal Templating and Block Copolymer Self-Assembly
Topic
S4. Colloids, Interfaces, and Molecular Assemblies for Functional Soft Materials
When and Where
Oct 1, 2026
08:30 - 09:30
Room 301 (Grand Ballroom)
Session Chairs
Jinkee HONG
Ki Su KIM
Presenter(s)
Hyun Soo Kim (Dept. of Advanced Materials Engineering, Kongju National University.)
Co-Author(s)
Abstract
In this study, superhydrophobic surfaces were fabricated by combining the self-assembly of colloidal crystals and block copolymers (BCPs). Micro–nano hierarchical structures were constructed on a single surface by integrating colloidal crystal templating with BCP self-assembly, thereby enhancing surface roughness and water repellency.
First, monolayer or multilayer micron–scale colloidal arrays were formed on a substrate. BCP was then coated onto the colloidal arrays, followed by solvent vapor annealing to induce microphase separation to create a micro–nano hierarchical structure. The controlled complex nano-structured surface exhibited outstanding superhydrophobicity, with a water contact angle greater than 150° and a sliding angle of less than 10°, achieved through the synergistic effect of geometric roughness and chemical modification.
The hybrid nanofabrication process based on colloidal crystals and BCP offers the advantages of easy large–area scalability and process simplicity. It is expected to serve as an effective platform technology for various industrial fields requiring surface control, such as functional waterproof films, smart windows, and moisture corrosion prevention
First, monolayer or multilayer micron–scale colloidal arrays were formed on a substrate. BCP was then coated onto the colloidal arrays, followed by solvent vapor annealing to induce microphase separation to create a micro–nano hierarchical structure. The controlled complex nano-structured surface exhibited outstanding superhydrophobicity, with a water contact angle greater than 150° and a sliding angle of less than 10°, achieved through the synergistic effect of geometric roughness and chemical modification.
The hybrid nanofabrication process based on colloidal crystals and BCP offers the advantages of easy large–area scalability and process simplicity. It is expected to serve as an effective platform technology for various industrial fields requiring surface control, such as functional waterproof films, smart windows, and moisture corrosion prevention
