新型无磷缓释阻垢剂的合成及性能研究

摘要

以马来酸酐和硫脲为原料制备改性聚环氧琥珀酸(SPESA)，将SPESA与聚丙烯酸(PAA)、聚环氧琥珀酸(PESA)、水解马来酸酐( HPMA)对水中钙盐的阻垢性能进行比较。结果表明，在阻垢性能方面， SPESA投量为50 mg·L-1时，碳酸钙的阻垢率达到93.26%，与其他水处理剂相当；但其对磷酸钙的阻垢效果明显高于其他处理剂，投加量为50 mg·L-1时，能达到79.14%。%A method to preparation of modified polyepoxysuccinic acid by using maleic anhydride and sulfourea was introduced. The performance of calcium scale inhibition by SPESA was compared with that by PAA, PESA and HPMA. The results showed that when the dosage of SPESA was 50 mg · L-1 , the scale inhibition performance on calcium carbonate was equal to that of other water treatment agent with the scale inhibition rate of 93. 26%. However, the efficiency of calcium phosphate scale inhibition by SPESA was superior to that by conventional water treatment agents with the scale inhibition rate of 79. 14% when the dosage was 50 mg·L-1.