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首页> 外文期刊>Journal of Applied Polymer Science >Impact of inhibitor loaded mesoporous silica nanoparticles on waterborne coating performance in various corrosive environments
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Impact of inhibitor loaded mesoporous silica nanoparticles on waterborne coating performance in various corrosive environments

机译：抑制剂的介孔二氧化硅纳米粒子对各种腐蚀环境中的水性涂料性能的影响

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摘要

This article is a contribution to the development of the smart, self-healing solutions in the context of corrosion protection of metallic materials based on nanotechnology. Mesoporous silica nanoparticles were successfully synthesized and loaded with two different corrosion inhibitors, 1-hydroxybenzotriazole and 8-hydroxyquinoline. Loaded particles were embedded in different concentrations in waterborne epoxy coating, and as such applied to low carbon steel substrates. A continuous immersion test in 3.5% NaCl solution, humidity chamber exposure, and salt spray exposure were performed. Successful synthesis of silica nanoparticles has been demonstrated using scanning electron microscopy and energy-dispersive X-ray spectroscopy characterization techniques. Fourier transform infrared spectroscopy was used to confirm the loading of inhibitors, while the quantity of loaded inhibitors was determined by thermogravimetric method. Anticorrosive performance of intact composite coatings was determined using electrochemical impedance spectroscopy and open-circuit potential measurements. Adhesive properties were determined using the pull-off test (ISO 4624). Significant improvement in corrosion protection performance has been demonstrated for coatings containing inhibitor-loaded nanoparticles.
机译：本文是在基于纳米技术的金属材料腐蚀防护背景下，对智能自愈解决方案开发的贡献。成功合成了介孔二氧化硅纳米颗粒，并负载了两种不同的缓蚀剂1-羟基苯并三唑和8-羟基喹啉。负载粒子以不同浓度嵌入水性环氧涂料中，并因此应用于低碳钢基材。在3.5%NaCl溶液中进行连续浸泡试验、湿度室暴露和盐雾暴露。利用扫描电子显微镜和能量色散X射线光谱表征技术成功合成了二氧化硅纳米颗粒。傅里叶变换红外光谱法用于确定缓蚀剂的负载量，而负载缓蚀剂的量通过热重分析法确定。利用电化学阻抗谱和开路电位测量法测定了完整复合涂层的防腐性能。使用拉脱试验（ISO 4624）测定粘合剂性能。已经证明，含有载缓蚀剂纳米颗粒的涂层的防腐性能有显著改善。

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