Highly hydrophobic hierarchical nanomicro roughness polymer surface created by stamping and laser micromachining
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°. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42082.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Mar 04, 2015
- Source ID
- 10.1002/app.42082
Entities
People
- Apurba Dev
- Cleber R Mendonca
- Marcos R. Cardoso
- Renato J. Martins
- Tobias Voss
Organizations
- Air Force Office of Scientific Research
- Coordenação de Aperfeicoamento de Pessoal de Nível Superior
- German Research Foundation
- National Council for Scientific and Technological Development
- Royal Institute of Technology
- São Paulo Research Foundation
- TU Braunschweig
- University of São Paulo