钠基蒙脱土改性聚丙烯酸树脂基吸附剂的制备与性能  

Preparation and Properties of Sodium-Based Montmorillonite Modified Polyacrylic Acid Resin-Based Absorbents

作　　者：冯健铭 彭凌 何薇 李晨晨 于靖波 张凌宝 刘瑞松 崔鹏 FENG Jian-ming;PENG Ling;HE Wei;LI Chen-chen;YU Jing-bo;ZHANG Ling-bao;LIU Rui-song;CUI Peng(School of Chemistry and Chemical Engineering,Hefei University of Technology,Hefei 230009,China)

机构地区：[1]合肥工业大学化学与化工学院,安徽合肥230009

出　　处：《安徽化工》2024年第1期34-37,共4页Anhui Chemical Industry

基　　金：安徽省大学生创新创业训练计划资助项目(202210359136)。

摘　　要：以丙烯酸(AA)、丙烯酰胺(AM)为共聚单体,钠基蒙脱土(Na-MMT)为改性剂,采用反相悬浮聚合法,制备钠基蒙脱土改性聚丙烯酸树脂基吸附剂。在钠基蒙脱土用量为单体总质量的6%,温度75℃,单体比例AA∶AM为4∶1(质量比),搅拌速度350 rpm,引发剂(APS)用量为单体总质量的1%和交联剂(MBA)用量为单体总质量的0.25%的优化条件下,所制备的钠基蒙脱土改性聚丙烯酸树脂基吸附剂对重金属离子Pb^(2+)、Cu^(2+)的吸附量分别为292.6 mg/g和178.9 mg/g。Sodium montmorillonite modified polyacrylic acid resin-based adsorbent was prepared by inverse suspension po-lymerization using acrylic acid(AA)and acrylamide(AM)as copolymer monomers and sodium montmorillonite(Na-MMT)as modifier.Under the optimized conditions of sodium montmorillonite dosage of 6%of total monomer mass,temper-ature of 75℃,monomer ratio AA∶AM of 4∶1(mass ratio),stirring rate of 350 rpm,initiator(APS)dosage of 1%of total monomer mass and cross-linking agent(MBA)dosage of 0.25% of total monomer mass,the prepared modified polyacrylic resin-based adsorbent was resistant to heavy metal ions.The adsorption amounts of Pb^(2+)and Cu^(2+)were 292.6 mg/g and 178.9 mg/g,respectively.

关 键 词：钠基蒙脱土 聚丙烯酸 吸附 重金属离子 

分 类 号：TQ317.4[化学工程—高聚物工业]