Bio-compatible hydroxyapatite Nanoplatform wrapped covalent organic framework (COF) as sustainable stimuli-responsive nano-hybrid for multi-purpose nanocomposite coating

IF 9.2 2区工程技术 Q1 ENERGY & FUELS

Sustainable Materials and Technologies Pub Date : 2025-07-18 DOI:10.1016/j.susmat.2025.e01546

Mohammad Ramezanzadeh , Milad Motamedi , Seyyed Arash Haddadi , Abbas Ghanbari , Tizazu H. Mekonnen , Bahram Ramezanzadeh

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引用次数: 0

Abstract

A sustainable stimuli-responsive two-dimensional bio-compatible calcium phosphate based hydroxyapatite (2D-HA) nanoplatforms wrapped by green inhibitors (tannic acid and praseodymium) doped three dimensional covalent organic frameworks (PrTA-COF@HA) was designed for fabricating a multi-purpose epoxy (EP) nanocoating with unique anti-corrosion properties, active self-healing, high thermal durability and mechanical strength, and outstanding weathering resistance. Analytical techniques, including Fourier transform infrared spectroscopy (FT-IR), Raman, low-angle X-ray diffraction (XRD), Brunauer-Emmett-Teller analyses (BET), X-ray photoelectron spectroscopy (XPS), field emission scanning electron microscopy (FE-SEM), and high-resolution transmission electron (HR-TEM) were used to investigate the PrTA-COF@HA nanoplatform, and the obtained results revealed new properties of this nano-reservoir. The protective performance of the PrTA-COF@HA reinforced epoxy coating (EP/PrTA-COF@HA) was evaluated through some techniques including electrochemical impedance spectroscopy (EIS), accelerated salt spray test (A-SST), pull-off adhesion strength, cathodic disbondement (CD) test, tensile, dynamic mechanical thermal analysis (DMTA), and weathering resistance (QUV-A) tests. The intact EP/PrTA-COF@HA priming nanocoat showed excellent physical shielding against the brackish water (3.5 wt% of NaCl) with log |Z|_10mHz = 10.30 after saline exposure for about 135 days. Furthermore, appreciable active self-healing property with an efficiency of about 41.25 % was observed for the defective EP/PrTA-COF@HA priming nanocoat after 8 h of immersion in the brackish water. The pull-off test revealed about 3.14 and 1.77 % loss of adhesion for the EP/PrTA-COF@HA priming nanocoat after 14 days of A-SST and 125 h of QUV-A exposure, respectively. The set of presented results and other extraordinary properties presented in the manuscript make this priming coat a prime choice for industrial applications in brackish marine environments.

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生物相容性羟基磷灰石纳米平台包裹共价有机骨架（COF）作为可持续刺激响应的纳米杂化物用于多用途纳米复合涂层

设计了一种可持续刺激响应的二维生物相容性磷酸钙羟基磷灰石（2D-HA）纳米平台，该纳米平台由绿色抑制剂（单宁酸和镨）掺杂三维共价有机框架（PrTA-COF@HA）包裹，用于制造具有独特防腐性能、主动自修复、高热耐久性和机械强度以及出色的耐风化性的多用途环氧（EP）纳米涂层。利用傅里叶变换红外光谱（FT-IR）、拉曼光谱（Raman）、低角x射线衍射（XRD）、brunauer - emmet - teller分析（BET）、x射线光电子能谱（XPS）、场发射扫描电镜（FE-SEM）和高分辨率透射电子（HR-TEM）等分析技术对PrTA-COF@HA纳米平台进行了研究，所得结果揭示了该纳米储层的新性质。通过电化学阻抗谱（EIS）、加速盐雾试验（A-SST）、拉脱附着力、阴极剥离（CD）试验、拉伸、动态机械热分析（DMTA）和耐风化（QUV-A）试验，对PrTA-COF@HA增强环氧涂层（EP/PrTA-COF@HA）的防护性能进行了评价。完整的EP/PrTA-COF@HA底漆纳米涂层在盐水暴露约135天后，对log |Z|10mHz = 10.30的微咸水（3.5 wt% NaCl）表现出良好的物理屏蔽作用。此外，在微微水中浸泡8小时后，发现缺陷EP/PrTA-COF@HA纳米涂层具有明显的自愈活性，自愈效率约为41.25%。拉脱试验显示，经过14天的A-SST和125小时的QUV-A暴露后，EP/PrTA-COF@HA纳米涂层的附着力分别下降了3.14%和1.77%。在手稿中提出的一组提出的结果和其他非凡的性质，使这种底漆在咸淡海洋环境工业应用的首选。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Sustainable Materials and Technologies Energy-Renewable Energy, Sustainability and the Environment

CiteScore

13.40

自引率

4.20%

发文量

158

审稿时长

45 days

期刊介绍： Sustainable Materials and Technologies (SM&T), an international, cross-disciplinary, fully open access journal published by Elsevier, focuses on original full-length research articles and reviews. It covers applied or fundamental science of nano-, micro-, meso-, and macro-scale aspects of materials and technologies for sustainable development. SM&T gives special attention to contributions that bridge the knowledge gap between materials and system designs.