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Novel water-based coatings of acrylic-polyurethane reinforced with mixed metal pigment for oil and gas pipelines protection
Progress in Organic Coatings ( IF 6.6 ) Pub Date : 2020-12-01 , DOI: 10.1016/j.porgcoat.2020.105941
M.G. Mohamed , N.M. Ahmed , W.S. Mohamed , M.R. Mabrouk

Abstract Pipelines are the most important part of oil and gas production and transportation processes. Protective coatings are tremendously important to maintain the pipelines body; it works like our human skin forming the physical and chemical barrier which is always ready and prepared to defend the body from prejudicial materials. Nowadays, the ongoing trend on protective coatings industry is heading to gradual substitution of the coatings containing hazardous materials by eco-friendly ones. The main stream in this context is to develop a new eco-friendly water-based coating for protection of steel pipelines from corrosion. This coating includes blends of acrylic emulsion (AC) with different dosages of polyurethane (PU) polymer (7 %, 15 % and 30 %) using traditional physical blend method. Moreover, the modified acrylic emulsion (AC-PU) was then enriched with novel mixed metal pigment of (CoO.ZnO.Al3O4) based on bauxite ore as natural source of alumina. The used polymers and the prepared pigment were subjected to comprehensive characterization methods to evaluate their chemical structure and morphology. After that, the anticorrosive performance of the formulated coatings containing the modified acrylic emulsions and prepared pigment was investigated in 3.5 % NaCl and 10 % HCl solutions. The results showed that, the coating formulated with acrylic emulsion mixed with 15 % polyurethane in presence of the prepared pigment offered higher corrosion protection compared to the other formulations and the parent polymers.

中文翻译:

用于石油和天然气管道保护的混合金属颜料增强的丙烯酸-聚氨酯新型水性涂料

摘要 管道是油气生产和运输过程中最重要的组成部分。保护涂层对于维护管道本体非常重要;它就像我们的人体皮肤,形成物理和化学屏障,随时准备保护身体免受有害物质的侵害。如今,保护涂料行业的持续趋势正朝着环保涂料逐渐取代含有有害物质的涂料的方向发展。在这方面的主流是开发一种新的环保水性涂料,以保护钢管免受腐蚀。这种涂料包括使用传统物理混合方法的丙烯酸乳液 (AC) 与不同剂量的聚氨酯 (PU) 聚合物(7%、15% 和 30%)的混合物。而且,然后,改性丙烯酸乳液(AC-PU)富含新型混合金属颜料(CoO.ZnO.Al3O4),以铝土矿为天然氧化铝来源。对使用的聚合物和制备的颜料进行综合表征方法以评估它们的化学结构和形态。之后,在 3.5% NaCl 和 10% HCl 溶液中研究了含有改性丙烯酸乳液和制备的颜料的配制涂料的防腐性能。结果表明,与其他配方和母体聚合物相比,在制备的颜料存在下,用丙烯酸乳液与 15% 聚氨酯混合配制的涂料提供更高的腐蚀保护。对使用的聚合物和制备的颜料进行综合表征方法以评估它们的化学结构和形态。之后,在 3.5% NaCl 和 10% HCl 溶液中研究了含有改性丙烯酸乳液和制备的颜料的配制涂料的防腐性能。结果表明,与其他配方和母体聚合物相比,在制备的颜料存在下,用丙烯酸乳液与 15% 聚氨酯混合配制的涂料提供更高的腐蚀保护。对使用的聚合物和制备的颜料进行综合表征方法以评估它们的化学结构和形态。之后,在 3.5% NaCl 和 10% HCl 溶液中研究了含有改性丙烯酸乳液和制备的颜料的配制涂料的防腐性能。结果表明,与其他配方和母体聚合物相比,在制备的颜料存在下,用丙烯酸乳液与 15% 聚氨酯混合配制的涂料提供更高的腐蚀保护。5% NaCl 和 10% HCl 溶液。结果表明,与其他配方和母体聚合物相比,在制备的颜料存在下,用丙烯酸乳液与 15% 聚氨酯混合配制的涂料提供更高的腐蚀保护。5% NaCl 和 10% HCl 溶液。结果表明,与其他配方和母体聚合物相比,在制备的颜料存在下,用丙烯酸乳液与 15% 聚氨酯混合配制的涂料提供更高的腐蚀保护。
更新日期:2020-12-01
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