Characterization of one-step,chromate-free,primer systems using liquid-state Si and C NMR |
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| Authors: | A Seth WJ van Ooij P Puomi T Metroke A Apblett |
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| Affiliation: | 1. Department of Chemical and Materials Engineering, University of Cincinnati, Cincinnati, OH 45221-0012, United States;2. Department of Chemistry, Oklahoma State University, Stillwater, OK 74078, United States |
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| Abstract: | Coatings derived from organofunctional silanes have been investigated as possible replacements for the chromate-based systems used in the aerospace industry. In this study, organofunctional silanes bis-(triethoxysilylpropyl)ethane and bis(triethoxysilylpropyl) tetrasulfide] were reacted with commercially available acrylate (ECO-CRYL™ 9790) and epoxy (EPI-REZ™ WD-510) resins, resulting in a one-step, low-VOC, chromate-free primer. Liquid-state 29Si and 13C NMR were used to determine structural characteristics of various optimized formulations. |
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| Keywords: | Liquid-state 29Si Liquid-state 13C NMR Chromate-free coatings One-step primer Low-VOC coatings |
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