Abstract
The effect of acrylic polyol composition on the properties of crosslinked siloxane-polyurethane coatings was explored. An acrylic polyol library was synthesized using batch solution polymerization and characterized using high-throughput gel permeation chromatography (Rapid-GPC) and differential scanning calorimetry (DSC). Siloxane-polyurethane coatings were prepared from 3-aminopropyl-terminated poly(dimethylsiloxane) (PDMS), the acrylic polyols and a polyisocyanate crosslinker. The siloxane-acrylic-polyurethane coatings were tested for mechanical and physical properties. The siloxane-polyurethane coatings had a systematic variation in glass transition temperature and had water contact angles ranging from 95 degrees to 100 degrees. Many of the coatings also showed a low-force of release in the pseudo-barnacle pull-off adhesion test. Performance testing of the fouling-release properties of the siloxane-polyurethane coatings on array panels with algae, namely the diatom Navicula and sporelings (young plants) of the green seaweed Ulva was also conducted.
Original language | English |
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Pages (from-to) | 453-461 |
Number of pages | 9 |
Journal | Journal of Coatings Technology and Research |
Volume | 4 |
Early online date | 12 Sept 2007 |
DOIs | |
Publication status | Published - 15 Nov 2007 |
Keywords
- silicates
- polyurethanes
- marine
- combinatorial
- biofouling
- Silicones
- high-throughput experimentation
- antifouling
- acrylics