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本文结合阳离子树脂交换技术,通过分析水解聚丙烯酰胺水解反应前后的有机N含量、水解采应前的羧基含量来测定由碱法水解获得的水解聚丙烯酰胺的水解度及纯度。它具有准确性和重复性较高等优点,适用于考察水解聚丙烯酰胺的水解度和用量等对絮凝和选择性絮凝影响的实验室理论研究。
In this paper, the degree of hydrolysis and purity of hydrolyzed polyacrylamide obtained by alkaline hydrolysis was determined by analyzing the content of organic N before and after the hydrolytic polyacrylamide hydrolysis reaction and the content of carboxyl groups before hydrolysis. It has the advantages of high accuracy and repeatability, and is suitable for the laboratory theoretical study on the influence of hydrolysis degree and dosage of hydrolyzed polyacrylamide on flocculation and selective flocculation.