环境友好型AA/MA/HEMA共聚物阻垢剂的合成及阻垢性能研究  

Synthesis of an environment-friendly terpolymer and evaluation of its scale inhibition performance

作　　者：余嵘[1] 逯佩宁 严程[1] 马志祥[1] 赫雷刚 赵丹[1] 刘渊博[1] 

机构地区：[1]西安工程大学环境与化学工程学院,陕西西安710048

出　　处：《功能材料与器件学报》2015年第4期41-45,共5页Journal of Functional Materials and Devices

基　　金：陕西省工业科技攻关项目(No.2015GY101);陕西省教育厅科研计划项目

摘　　要：以马来酸酐(MA)、丙烯酸(AA)和甲基丙烯酸羟乙酯(HEMA)为单体,通过水溶液自由基聚合的方法合成新型三元共聚物阻垢剂,共聚物的数均分子量为1259左右,属于分布较窄的过渡区分子量聚合物。对共聚物进行红外光谱和扫描电子显微镜分析可知:共聚物中含有分散阻垢所需的羧基、酰胺基和磺酸基等官能团,晶格畸变和络合増溶是共聚物抑制沉淀的主要作用机理。通过与四种常用绿色环保阻垢剂阻垢性能的对比试验,探讨了共聚物的投加量、钙离子质量浓度、水样温度等对共聚物阻垢性能的影响。结果表明:共聚物投加量为3mg/L,水温80℃,钙离子质量浓度480mg/L时,阻垢率达到91.35%。共聚物对碳酸钙的整体阻垢性能优于常规阻垢剂,特别适用于高温、中高硬的工业循环冷却水。With maleic anhydride （ MA）, acrylic acid （AA） and hydroxyethyl methacrylate （HAMA） as the monomer, a novel terpolymer scale inhibitor was synthesized through aqueous radical polymerization, and the number average molecular weight of the copolymer around 1259 belonging to the distribution of narrow transition zone molecular weight. The copolymer was analyzed with infrared spectroscopy and scanning electron microscope （sem） , it containing carboxyl, amide and sulfonic acid functional groups which dispersed scale required, lattice distortion and complex solubilizing a major role in suppressing precipitation copolymer mechanism. Through the comparative test on the scale inhibition performance of terpolymer scale inhibitor and four common green scale inhibitors, the influences of copolymer dosage, mass concentration of calcium ions and water temperature on scale inhibition performance were discussed. The results showed that, when the copolymer dosage was 3rag/L, the water temperature was 80℃, the mass concentration of calcium ions was 480mg/L, the scale inhibiting rate reached 91.35%. The copolymerperformance of calcium carbonate scale superior to conventional inhibitors, especially appropriate for the industrial circulating cooling water with high temperature and high hardness.

关 键 词：阻垢剂 三元共聚物 阻垢性能 碳酸钙 循环冷却水 

分 类 号：X783[环境科学与工程—环境工程]