聚环氧琥珀酸接枝聚丙烯酸的阻垢性能研究

摘要

Polyepoxysuccinic acid-grafted-polyacrylic acid (PESA-g-PAA) is a new environment-friendly scale inhibitor containing no phosphorus and nitrogen.The static scale inhibition efficacy against CaCO3,CaSO4,and Ca3(PO4)2 scale,and zinc salt stabilizing efficacy by using PESA-g-PAA have been researched.The effects of dosage,alkalinity,hardness,temperature,and constant temperature time on the inhibition capability against CaCO3 scale by using PESA-g-PAA are investigated systematically,and relevant capabilities are compared with that of PESA.The results show that the scale inhibitions capabilities against CaCO3 and CaSO4 by using PESA-g-PAA are better than those of PESA,but the Ca3(PO4)2 scale inhibition and zinc salt stabilization by using PESA-g-PAA are unsatisfactory.%聚环氧琥珀酸接枝聚丙烯酸(PESA-g-PAA)是一种新型的无磷无氮绿色阻垢剂.研究了PESA-g-PAA对CaCO3、CaSO4、Ca3(PO4)2的静态阻垢性能和稳定锌盐性能,系统探讨了阻垢剂添加量、碱度、硬度、温度、恒温时间对PESA-g-PAA阻CaCO3垢性能的影响,并与PESA的相关性能进行比较.结果表明,PESA-g-PAA对CaCO3、CaSO4的阻垢性能比PESA更好,但对Ca3(PO4)2的阻垢效果及对锌盐的稳定效果并不理想.