| Titre : |
Amphiphilic marine coating systems of self-stratified PDMS-PEG surfaces with an epoxy-polyurethane matrix |
| Type de document : |
texte imprimé |
| Auteurs : |
AliReza Rahimi, Auteur ; Morgan Murphy, Auteur ; Kinza Faiyaz, Auteur ; Shane J. Stafslien, Auteur ; Lyndsi J. Vander Wall, Auteur ; Madhura Pade, Auteur ; John A. Finlay, Auteur ; Anthony S. Clare, Auteur ; Dean C. Webster, Auteur |
| Année de publication : |
2022 |
| Article en page(s) : |
p. 795-812 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Caractérisation
Carbamate de glycidyle
Copolymère silicone-uréthane
Epoxydes
Essais (technologie)
Formulation (Génie chimique)
Revêtements antisalissures
Revêtements autostratifiants
Revêtements organiques
Salissures biologiques
Statistique
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Marine coatings protect submerged surfaces from the negative effects of biofouling. In this work, we demonstrate a new method to prepare self-stratified, amphiphilic glycidyl-carbamate (GC)-based (epoxy urethane-based) coatings (AmpSiGC coatings) that have fouling-release properties making them suitable for marine use. The prepared coating systems are unique and durable in character as the bulk coating takes advantage of both epoxy and urethane functionalities while the surface is comprised of both hydrophilic and hydrophobic domains, granting it an amphiphilic characteristic. The experimental approach aimed to evaluate several factors that influence coating performance, including molecular weight of poly (ethylene glycol) (PEG) and PDMS moieties, ratio of hydrophobic (PDMS) and hydrophilic (PEG) components in the system, and the effect of different curing agents. The results demonstrated that polymeric chains of 10,000 Mn PDMS and 750 Mn PEG at 10–15 wt.% each offer substantially improved or comparable fouling-release performance in comparison to commercial marine coatings. This paper reports on the facile synthesis and characterization of the GC resin and GC prepolymers using FTIR and epoxy titrations ; surface characterization of the coatings using ATR-FTIR, XPS, and AFM; and fouling-release assessment of the surfaces using laboratory biological assays with the barnacle Amphibalanus amphitrite, the algae Ulva linza and Navicula incerta, and the bacteria Cellulophaga lytica. Several of the AmpSiGC coatings exhibited promising performance, which were better or comparable to the internal and commercial reference coatings. The performance of the systems was dependent on all of the factors considered in this study. |
| Note de contenu : |
- Materials
- Design of experiments
- Synthesis of glycidyl-carbamate resin
- Synthesis of amphiphilic glycidyl-carbamate prepolymers
- Epoxy equivalent weight titrations
- Percent solids determination
- Fourier transform infrared spectroscopy
- Coating formulation and curing
- Surface characterization
- Biological laboratory assays
- Statistical analysis
- Table 1 : Coating compositions
- Table 2 : Epoxy equivalent weight for GC resin and some prepolymers |
| DOI : |
https://doi.org/10.1007/s11998-021-00561-2 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007/s11998-021-00561-2.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38072 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 19, N° 3 (05/2022) . - p. 795-812
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