Replication Processes

Bioinspired Air-Retaining Nanofur for Drag Reduction

“…A schematic of the hot pulling technique is illustrated in Figure C. Hot pulling is a modified hot embossing process, in which high demolding forces occurring during the polymer and mold separation are used to create high-aspect-ratio nano- and microstructures. − The greatest advantage of the hot pulling method is that it uses a sandblasted steel plate instead of the expensive microstructured molds used in hot embossing. The plate is patterned by sandblasting it with aluminum silicate clinker (0.6–1.4 mm), and then with aluminum oxide abrasive 53 ± 3 μm).…”