LAYER BY LAYER SUPERHYDROPHOBIC FLUOROPOLYMER COATED METAL SUBSTRATE FOR DROPWISE CONDENSATION

摘要

A substrate surface includes a hierarchal structure on the substrate surface, the hierarchal structure includes layers of liquid fluorocarbon polymer and/or hydrofluorocarbon polymer and particles of a fluorocarbon polymer and/or hydrofluorocarbon polymer. The multi-layer structure compromises a nano-textured and/ or a micro-textured structured of a fluorocarbon polymer and/or a hydrofluorocarbon polymer coating on the substrate surface. The liquid layer of the fluorocarbon polymer and/or hydrofluorocarbon polymer is embedded between the substrate surface and the upper particle layer. The multi-layer structured fluorocarbon polymer and/or a hydrofluorocarbon polymer coating a substrate acts a biomimetic of the lotus leaf effect.