Silanization of a Metal–Polyphenol Coating onto Diverse Substrates as a Strategy for Controllable Wettability with Enhanced Performance to Resist Acid Corrosion
| Autor: | Yagang Zhang, Ruofei Lu, Xingjie Zan, Shaoyin Wei, Xiaoqiang Zhang, Xinxiu Cheng, Wujun Geng, Yaxin Zhu, Letao Zhang |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
Nanotechnology 02 engineering and technology Surfaces and Interfaces engineering.material Surface engineering 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Silane 0104 chemical sciences Contact angle chemistry.chemical_compound Coating chemistry X-ray photoelectron spectroscopy Silanization Electrochemistry engineering Surface modification General Materials Science Wetting 0210 nano-technology Spectroscopy |
| Zdroj: | Langmuir. 37:3637-3647 |
| ISSN: | 1520-5827 0743-7463 |
| DOI: | 10.1021/acs.langmuir.0c03623 |
| Popis: | Wettability is a crucial characteristic of materials that plays a vital role in surface engineering. Surface modification is the key to changing the wettability of materials, and a simple and universal modification approach is being extensively pursued by researchers. Recently, metal-phenolic networks (MPNs) have been widely studied because they impart versatility and functionality in surface modification. However, an MPN is not stable for long periods, especially under acidic conditions, and is susceptible to pollution by invasive species. Spurred by the versatility of MPNs and various functionalities achieved by silanization, we introduce a general strategy to fabricate functionally stable coatings with controllable surface wettability by combining the two methods. The formation process of MPN and silane-MPN coatings was characterized by spectroscopic ellipsometry (SE), UV-visible-near-infrared (UV-vis-NIR) spectroscopy, X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), atomic force microscopy (AFM), water contact angle (WCA), etc. We found that the stability of the MPN was greatly enhanced after silanization, which is attributed to the cross-linking effect that occurs between silane and the MPN, namely, the cross-linking protection produced in this case. Additionally, the wettability of an MPN can be easily changed through our strategy. We trust that our strategy can further extend the applications of MPNs and points toward potential prospects in surface modification. |
| Databáze: | OpenAIRE |
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