Preparation of Composite Fluoropolymers with Enhanced Dewetting Using Fluorinated Silsesquioxanes as Drop-In Modifiers (Preprint)
Abstract
Composite fluoropolymers were prepared by solvent blending fluorinated POSS (F-POSS) with perfluorocyclobutyl (PFCB) aryl ether polymers. The semifluorinated PFCB aryl ether polymers were shown to be hydrophobic, but demonstrated complete wetting by hydrocarbon-based liquids. Upon the incorporation of F-POSS as a drop-in modifier at low weight percent loadings, the composite fluoropolymer spin cast films exhibited increased water in addition to hydrocarbon repellency as determined by contact angle analysis. Composite film surface characterization included SEM and AFM analysis which showed excellent F-POSS dispersion and increased surface roughness. Thermal properties of the blended films were performed using DSC and demonstrated the incorporation of F-POSS did not affect the bulk matrix properties inherent of PFCB aryl ether polymers. This work demonstred that optimized F-POSS PFCB aryl ether polymer blend formulations have potential use as hydro- and oleophobic materials for seals, fibers, and coatings
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 17, 2010
- Accession Number
- ADA521341
Entities
People
- Dennis W. Smith
- Joseph M Mabry
- Scott T Iacono
- Stephen M. Budy
Organizations
- Air Force Research Laboratory