Highly hydrophobic hierarchical nanomicro roughness polymer surface created by stamping and laser micromachining

Author(s)

Cardoso, Marcos R. ; Martins, Renato J. ; Dev, Apurba ; Voss, Tobias ; Mendonca, Cleber R.

• Document type: Journal article
• Source: Journal of Applied Polymer Science; v. 132, n. 24, p. 4-pg., 2015-06-20.

Abstract

This article describes the design and fabrication of hierarchical nanomicrostructured polymer surfaces with high hydrophobicity. The nanoscale roughness is achieved by stamping a ZnO nanowire film into PDMS. Subsequently, microstructures with different periodicities are created in the stamped PDMS sample by direct laser writing using femtosecond pulses. With this approach, we were able to produce hierarchical surface morphologies, composed of nano and microscale structures that exhibit water contact angles larger than 160 degrees. (c) 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42082. (AU)

• FAPESP's process: 11/12399-0 - Femtosecond pulses applied to nonlinear optics: spectroscopy, pulse shaping and microfabrication
• Grantee: Cleber Renato Mendonça
• Support Opportunities: Research Projects - Thematic Grants