水杨酸-硫脲螯合树脂的制备研究  

Study on Salicylic Acid-thiourea Resin

作　　者：沈英静[1] 张跃兴[1] 胡继峰[1] 

机构地区：[1]中国船舶重工集团公司第七一八研究所

出　　处：《舰船防化》2010年第5期23-29,共7页

摘　　要：以水杨酸、甲醛和硫脲为原料，在浓盐酸的催化作用下，进行Mannich反应合成水杨酸-硫脲螯合树脂；研究了加料方式、反应温度、原料配比、反应时间对水杨酸-硫脲树脂合成的影响；结合红外光谱分析和不同反应条件下树脂对Ni^2＋的吸附容量的测定确定了水杨酸-硫脲树脂的最佳合成工艺；研究了镍离子初始浓度以及pH值对水杨酸-硫脲树脂吸附性能的影响；通过热重分析考察树脂的热性能。According to the Mannich reaction, the salicylic acid-thiourea resin was synthesized with salicylic acid, formaldehyde, thiourea and hydrochloric. The effects of feed way, material ratio, reaction temperature and reaction time were investigated. The best synthesis technological conditions were confirmed through the infrared spectrum and the absorption properties of salicylic acid-thiourea resin for Ni^2＋. And the influences of the Ni^2＋ concentration and the pH value on the absorption properties were studied. The thermal analysis was also studied.

关 键 词：MANNICH反应 螯合树脂 吸附性能 合成工艺 

分 类 号：O69[理学—化学]