Scalable manufacturing of superhydrophobic structures in plastics

A method of manufacturing a superhydrophobic (SH) surface comprising:

• creating a master with SH features by:
• depositing a rigid material onto a first surface, wherein said rigid material comprises a first layer comprising a first metal and a second layer comprising a second metal, wherein one of the first and second layers is solid calcium, wherein the first surface is a shrinkable platform;
• shrinking the first surface by heating to create a SH surface, wherein the SH features comprise micro- and nano-scale structures that trap air pockets and prevent water from wetting the surface;
• forming the master by contacting a master material with the shrunken first surface having a SH surface and hardening the master material while in contact with the shrunken first surface, wherein master material solidifies and acquires the SH features of the first surface;
• and
• imprinting the SH features of the master onto a second surface to impart the SH features of the master onto the second surface.