阳离子聚丙烯酰胺的光引发合成及絮凝性能研究  

Research on Photo-Initiation Synthesis and Flocculation Performance of Cationic Polyacrylamide

作　　者：申秀梅[1] 聂容春[1] 张东杰[1] 

机构地区：[1]安徽理工大学化学工程学院,安徽淮南232001

出　　处：《选煤技术》2011年第1期3-6,75,共4页Coal Preparation Technology

基　　金：安徽省教育厅自然科学基金重点资助项目(编号:2002kj284ZD);安徽省淮南市2005科技计划资助项目

摘　　要：采用光引发聚合方式,以丙烯酰胺(AM)和甲基丙烯酰氧乙基三甲基氯化铵(DMC)为共聚单体,合成了阳离子度为16.03%,特性粘数为548mL/g的阳离子聚丙烯酰胺絮凝剂。采用红外光谱对阳离子聚丙烯酰胺的结构进行了表征,并对合成的CPAM聚合物的絮凝性能进行了研究,研究结果表明:在最佳药剂用量条件下,阳离子聚丙烯酰胺在处理灰分高、粒度细的难沉降煤泥水时,沉降速度为39.2cm/m in,透光率可达98.9%,适宜的阳离子度为16.03%。Cationic polyacrylamide(CPAM) was synthesized using photo-initiation polymerization system by acrylamide(AM) and methacrylatoethyl trimethyl ammonium chloride(DMC).The cationic degree of the product was 16.03% and the intrinsic viscosity was 548 ml·g-1.The synthesized cationic polyacrylamide sample was characterized by FT-IR and the flocculation performance was also measured.The results showed that the settling velocity was 39.2cm/min and the transmittance was up to 98.9% while CPAM in dealing with high ash content and fine size coal slime water.The suitable cationic degree of CPAM was 16.03%.The flocculation performance of CPAM was as excellent as French commercial grade CPAM when compared with PAM,HPAM and AmPAM.

关 键 词：阳离子聚丙烯酰胺 光引发聚合 结构表征 絮凝性能 絮凝效果 

分 类 号：TD946.21[矿业工程—选矿]