添加粘土改性的绿色硅石墨碳可提高环氧涂料的疏水、电阻屏障和防腐性能

IF 3.1 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY
Anu Verma , Chandra Sekhar Tiwary , Jayanta Bhattacharya
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引用次数: 0

摘要

本研究开发了一种生产粘土改性硅质石墨碳(CGSGC)的简单方法,并将其应用于碳钢(CS)的 CGSGC/ 环氧涂层。CGSGC 是使用 25% 的池塘粘土和 75% 的残余农业生物质通过热解途径合成的。目的是评估这些涂层的阻隔性和防腐蚀性能。结果表明,与标准 EP 涂层相比,在环氧树脂(EP)基体中添加 0.1 wt.% 的 CGSGC 可将其防腐蚀抑制能力提高 99.8%。0.1 wt.% CGSGC/EP 混合涂层还表现出强大的疏水性(WCA 为 142.2°)和高达 250 °C 的热稳定性(涂层重量减少 2-3%)。与标准 EP 涂层相比,优化样品的显微硬度提高了 59.18%。SEM 图像显示,加入 0.1 wt.% 的 CGSGC 后,EP 的致密性提高,微观结构缺陷(孔洞和裂缝)减少。三维轮廓测量显示,0.1 wt.% CGSGC/EP 涂层的表面更加光滑。类似的材料可大量再生利用,是保护碳钢免受腐蚀的传统危险化学品的更安全的替代品,更不用说其带来的碳信用额度收益了。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Enhancement of hydrophobic, resistive barrier and anticorrosion performance of epoxy coating with addition of Clay-Modified Green Silico-Graphitic Carbon

Under this study, a straightforward method for producing clay-modified silico-graphitic carbon (CGSGC) was developed and applied to create CGSGC/epoxy coatings for carbon steel (CS). The CGSGC was synthesized using a mixture of 25 % pond clay, and 75 % remnant agricultural biomass by mass via pyrolysis route. The aim was to evaluate the barrier and anti-corrosion properties of these coatings. The results demonstrated that adding 0.1 wt.% of CGSGC in the epoxy (EP) matrix enhanced its anti-corrosion inhibition capabilities by 99.8 % when compared with standard EP coating. The 0.1 wt.% CGSGC/EP mixed coating also exhibited robust hydrophobicity with WCA of 142.2° and thermal stability up to 250 °C with 2–3 % coating weight reduction. The microhardness of the optimized sample shows a 59.18 % improvement compared to standard EP coating. SEM images revealed improved EP compactness and reduction in microstructural defects (holes and cracks), with the incorporation of 0.1 wt.% CGSGC. 3D profilometry showed a smoother surface for the 0.1 wt.% CGSGC/EP coating. Similar such materials, while being abundantrly and renewably available, can be a safer alternative to conventional hazardous chemicals for protecting carbon steel from corrosion; not to mention the carbon credit benefits they entail.

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来源期刊
Carbon Trends
Carbon Trends Materials Science-Materials Science (miscellaneous)
CiteScore
4.60
自引率
0.00%
发文量
88
审稿时长
77 days
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