针对再生水用于循环冷却系统引起的腐蚀结垢问题,采用碳酸钙沉积法、旋转挂片法、表面微观分析技术和电化学方法,结合正交试验设计和动态模拟试验装置,对钼系缓蚀阻垢剂的缓蚀、阻垢性能进行试验研究,确定了钼系配方的最优组成,并探讨了钼系缓蚀阻垢剂的协同作用机理.结果表明:复配药剂的最佳组成为2-膦酸丁烷-1,2,4-三羧酸(PBTCA) 5.0 mg/L,丙烯酸-2-丙烯酰胺-2-甲基丙磺酸共聚物(AA/AMPS) 5.0 mg/L,钼酸盐8.0mg/L,锌盐2.0mg/L,BTA 1.0 mg/L.该复配药剂的阻垢机理包括膦酸基(-PO3H2)的晶格畸变、羧基(-COOH)的螯合增溶以及长链结构的分散作用,是一种典型的阳极型缓蚀剂.
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