预辐射聚丙烯纤维接枝N-异丙基丙烯酰胺及其对Fe(II)离子的吸附  

Grafting copolymerization of N-isopropylacryamide onto preirradiated polypropylene fabric and Fe(II) adsorption

作　　者：王涛[1] 陈捷[1] 贺思敏[2] 杨黎明[1] 李志军[1] 王胜[1] 徐娇[1] 

机构地区：[1]上海大学环境与化学工程学院化学工程系,上海201800 [2]天祥技术服务有限公司,上海200233

出　　处：《辐射研究与辐射工艺学报》2006年第1期23-27,共5页Journal of Radiation Research and Radiation Processing

基　　金：国家自然科学基金(29774015)资助

摘　　要：采用预辐射接枝法,将N?异丙基丙烯酰胺(N-Isopropylacryamide,NIPAAm)接枝于聚丙烯纤维。研究了不同条件下接枝纤维对亚铁离子的吸附和解吸附情况。结果表明,在较低温度(5℃)及pH≈0条件下,接枝纤维对金属离子(Fe2+)具有良好的吸附性能;而在较高温度(50℃)下pH≈3时,被吸附的Fe2+几乎能被较完全解脱下来。An ion adsorbed fabric of PP-g-NIPAAm was prepared by grafting N-isopropylacryamide （NIPAAm） onto PP （polypropylene） fabric pre-irradiated by ^60Co γ-rays. The ion adsorbility were studied on the Fe^2＋ aqueous solution with different conditions, such as temperature, pH and ion concentration etc. The results indicated that the NIPAAm grafted PP fabric possess the ability of adsorbing the Fe^2＋ ions at lower pH （around pH 0） and lower temperature（5 ℃）. The adsorbed Fe^2＋ ions were easily desorbed at higher temperature （50 ℃）.

关 键 词：辐射接枝 聚丙烯纤维 N-异丙基丙烯酰胺 吸附 解吸附 

分 类 号：TQ325[化学工程—合成树脂塑料工业]