用于除去浓缩果汁中微量重金属的螯合纤维的研制——(Ⅰ)PP无纺布紫外接枝丙烯酸的条件及性能  

STUDY ON COMPLEX FIBER USED FOR REMOVAL TRACE HEAVY METALS FROM CONCENTRATED JUICE——(Ⅰ) STUDY ON REACTION CONDITIONS AND PROPERTIES OF PP NOV-WOVEN UV GRAFTED WITH AA

作　　者：陈元维[1] 寇晓康 高月静 韦卫军 肖芳[1] 万昌秀[1] 王槐三[1] 

机构地区：[1]四川大学高分子科学与工程学院,四川成都610065 [2]西安蓝深吸附交换材料有限责任公司,陕西西安710032

出　　处：《高分子材料科学与工程》2004年第6期153-156,共4页Polymer Materials Science & Engineering

基　　金：863重大项目"浓缩果汁质量控制技术研究"子课题(2002AA245091)

摘　　要：研究聚丙烯纤维无纺布紫外光照接枝丙烯酸以合成对重金属离子具有高选择性的螯合纤维、纤维接枝前后的结构和性能表征及影响接枝率和交换量的因素。结果显示,采用平面小功率组合紫外光源和高纯度氮气是获得高接枝率和高交换量纤维的关键因素,在优化条件下纤维的接枝率和交换量分别为10%～95%和1mmol/g～7mmol/g(干基)。A chelating fiber possessing high grafting yield and exchange capacity was synthesized. Polypropylene nov-woven was grafted by crylic acid under the condition of ultraviolet radiation and highly pure nitrogen. The structures and properties of the fiber before and after grafting, and a few factors which have influence on grafting yield and exchange capacity were investigated in the paper. The results show that using plane combination lamp-house and highly pure nitrogen are key factors. The grafting rate and exchange capacity of the grafted fiber are up to (10%)^(95)% and 1 mmol/g^7 mmol/g (dry) respectively under optimal conditions.

关 键 词：聚丙烯无纺布 紫外接枝聚合 丙烯酸 离子交换纤维 

分 类 号：TQ342.62[化学工程—化纤工业]