Metal corrosion protection is particularly important when marine power systems and exhaust pipes are exposed to high temperatures and salt spray for long periods of time. The key to solving the problem lies in the development of a corrosion resistant coating that is resistant to high temperatures and salt spray. The unique twisted non-coplanar structure of poly(phthalazinone ether nitrile ketone) (PPENK) provides excellent temperature resistance, further improved by adding fillers. The PPENK is used as a resin matrix, combined with inorganic fillers such as silicon carbide, zirconium dioxide and aluminum triphosphate to develop an anticorrosive coating for the surface of steamship in high-temperature environments. This study involved a detailed investigation of the composite coating’s anti-corrosion properties with various formulations, aiming to assess its engineering properties. The results demonstrated that adding silicon carbide and aluminum triphosphate results in a coating with superior abrasion resistance. Notably, aluminum triphosphate significantly enhanced abrasion resistance, regardless of the quantity added. Assessment of temperature and decay resistance was conducted using high-temperature oxidation tests, salt spray tests, and electrochemical impedance spectroscopy, and the resultant coating maintained performance for over 3000 h at 250℃ and offered protection against salt spray for at least 2400 h. Conducting this study on polyaryl ether coatings with phthalazinone structures under high-temperature salt spray conditions establishes a robust basis for protecting maritime operational systems against corrosion, aiming to reduce economic losses and prevent casualties from equipment damage.

中文翻译：

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含有耐盐雾腐蚀的邻苯二甲嗪酮部分的工程聚芳醚涂料


当船舶动力系统和排气管长时间暴露在高温和盐雾中时，金属防腐蚀保护尤为重要。解决这个问题的关键在于开发一种耐高温和耐盐雾的耐腐蚀涂层。聚邻苯二甲嗪酮醚丁腈酮 （PPENK） 独特的扭曲非共面结构提供了优异的耐温性，并通过添加填料进一步改善了耐温性。PPENK 用作树脂基体，与碳化硅、二氧化锆和三磷酸铝等无机填料结合，为高温环境下的轮船表面开发防腐涂层。这项研究涉及对复合涂层在各种配方下的防腐性能进行详细调查，旨在评估其工程性能。结果表明，添加碳化硅和三磷酸铝可使涂层具有卓越的耐磨性。值得注意的是，无论添加量如何，三磷酸铝都显着增强了耐磨性。使用高温氧化测试、盐雾测试和电化学阻抗谱对温度和抗衰变性进行评估，所得涂层在 250°C 下保持性能超过 3000 小时，并提供至少 2400 小时的盐雾保护。在高温盐雾条件下对具有邻苯二甲酰嗪酮结构的聚芳醚涂层进行这项研究，为保护海上操作系统免受腐蚀奠定了坚实的基础，旨在减少经济损失并防止设备损坏造成的人员伤亡。