一种聚醚类阻垢剂的合成与性能研究

Synthesis and Properties of a Polyether-Based Scale Inhibitors

摘要: 实验以脂肪醇聚氧乙烯醚(AEO-7)，马来酸酐(MA)，氢氧化钠为原料，用过硫酸钾作引发剂，合成了一种新型聚醚类阻垢剂(PMAEO)。通过静态实验研究了阻垢剂用量、溶液钙离子浓度、pH值等对PMAEO阻碳酸钙垢性能的影响，结果表明：当阻垢剂用量为2 mg/L时，PMAEO阻碳酸钙效率可达98%；当添加量恒定时，随着钙离子浓度的增加，阻垢率逐渐下降；PMAEO阻碳酸钙垢的性能随pH值的增大而显著降低；与市售的阻垢剂水解聚马来酸酐(HPMA)相比，阻垢性能良好。

Abstract: In this experiment, fatty alcohol polyoxyethylene ether (AEO-7), maleic anhydride (MA), and so-dium hydroxide were used as precursor materials, and potassium persulfate was used as an ini-tiator to synthesize a new type of polyether scale inhibitor (PMAEO). The effects of the amount of scale inhibitors, the concentration of calcium ions in the solution, and the pH value on the performance of calcium carbonate scale inhibition were studied by a static test. The results show that when the amount of scale inhibitor is 2 mg/L, the PMAEO inhibition efficiency of cal-cium carbonate can reach 98%; as the addition amount is constant, the scale inhibition rate gradually decreases with the calcium ion concentration increasing; the performance of PMAEO inhibiting calcium carbonate scale decreased significantly with pH increasing; compared with the commercially available scale inhibitor hydrolyzed polymaleic anhydride (HPMA), the scale inhibition efficiency perform well.