P(MA-AA)纳米纤维膜的制备及其吸附铅离子的研究  

Preparation and lead ionic adsorption of P(MA-AA)nanofibrous membrane

作　　者：李长龙[1] 周磊[1] 刘新华[1] 蒋涛[1] 

机构地区：[1]安徽工程大学安徽省纺织面料实验室,芜湖241000

出　　处：《化工新型材料》2014年第4期113-115,118,共4页New Chemical Materials

基　　金：国家自然基金(21302001)

摘　　要：采用溶液聚合法制备丙烯酸甲酯-丙烯酸的共聚物。用水及丙酮分别萃取纯化，以N，N-二甲基甲酰胺（DMF）为溶剂，配成质量分数为22％、26％、30％溶液，通过静电纺丝技术制备P（MA-AA）纳米纤维膜。借助扫描电镜（SEM）gE察纳米纤维的表面形态，利用红外光谱对纳米纤维膜进行表征，并研究了P（MA-AA）纳米纤维膜对pb^2＋吸附性能。结果表明，当P（MA-AA）质量分数在300／oo时，可纺性较好，其平均直径分布在200-400nm之间；纳米纤维膜吸附pb外是化学吸附过程，其平衡吸附量为269．35mg／g，而且有着良好的吸附再生性能。The methyl acrylate-acrylic acid eopolymer was prepared by solution polymerizatiorL P（MA-AA）was pu- rified by successive extractions with water and acetone, N, N-dimethylformamide（DMF）as solvent and the total concentra- tions were 22 %, 26 %,30 % respectively P（MA-AA）nanofibers were prepared by the electrospinning. The surface morphol- ogy o：[ nanofibers was observed with scan electric microscope（SEM）. The nanofibrous membrane was characterized with in- frared spectroscopy, and the adsorption properties of Pb2＋ was investigated. The results showed that the average diameter was among 200-400nm with good spinnability when the P（MA-AA）total concentration was 30% the process of adsorp- tion of Pb2＋ was chemical adsorption. The equilibrium adsorption quantity of the membrane was 269.35 mg/g, and it had a good adsorption regeneration performance.

关 键 词：丙烯酸甲酯-丙烯酸共聚物 静电纺丝 吸附 铅离子 

分 类 号：TQ342.8[化学工程—化纤工业]