用于除去浓缩果汁中微量重金属的螯合纤维的研制——(Ⅱ)PP无纺布紫外接枝丙烯酸的结构与性能  

STUDY ON COMPLEX FIBER USED FOR REMOVAL TRACE HEAVY METALS FROM CONCEN TRATED JUICE——(Ⅱ) STUDY ON STRUCTRUES AND PROPERTIES OF PP NOV-WOVEN UV GR AFTED WITH AA

作　　者：寇晓康 万昌秀[2] 高月静 韦卫军 王槐三[2] 

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

出　　处：《高分子材料科学与工程》2004年第6期157-160,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：研究单体溶液组成对AA无纺布接枝率的影响,以及接枝前后纤维结构和性能的表征及影响因素。结果显示,以丙酮和水为稀释剂,二苯甲酮为光敏剂,AA浓度1mol/L～7mol/L,适量加入辅引发剂AIBN,接枝率和交换量分别达20%～95%和2mmol/g～6mmol/g。扫描电镜、光学显微和数码照片分别显示纤维表面接枝AA支链的长度和分布,以及铜网支架遮光的局部阻聚证据。IR光谱为接枝历程提供了可靠证据。This article plays emphasis on the effects of monomer solution ingredients on he grafting yield. The results show that grafting yield and exchange capacity can be 0%~95% and 2 mmol/g^6 mmol/g (dry sample) by using aceton, water as thinner monomer concentration: 1 mol/L^7 mol/L), benzophenone as photosensitizer, a proper quantity of AIBN as subsidiary initiator. The structures and properties of the PP fibers were also studied. Pictures of SEM, optical microscope and IR spectrum showed the istributions and lengths of AA branches on PP nov-woven before and after grafting. The mark of metallic grid on the PP suggested that polymerization inhibition was caused by the lightshade. ictures of infrared absorption spectrum provided the process of UV grafting polymerization with reliable evidences.

关 键 词：聚丙烯无纺布 丙烯酸 紫外接枝聚合 离子交换纤维 结构和性能 

分 类 号：TQ342.62[化学工程—化纤工业]