阴离子交换纤维的制备及应用  

Preparation and Application of an Anion-exchange Fabric

作　　者：董缘[1] 兰新哲[1] 

机构地区：[1]西安建筑科技大学冶金工程学院,西安710055

出　　处：《有色金属》2009年第1期81-85,共5页Nonferrous Metals

基　　金：国家"863"计划资助项目(2003AA32X090)

摘　　要：以聚丙烯无纺布为基材,甲基丙烯酸甲酯为单体,采用辐射接枝共聚的方法制备接枝共聚物,再功能化处理制成阴离子交换纤维,并应用其处理含氰废水。交换纤维制备的最佳工艺条件是温度65℃、时间2h、单体浓度20%、交联剂5%、阻聚剂0.3g。最佳条件下的接枝率为6.46%。功能化后的聚丙烯阴离子交换无纺布,交换容量可达5.26%。接枝共聚-功能化后所得的聚丙烯基离子交换无纺布,可以吸附含氰废液中的氰,饱和吸附量为1534.1mg/g,且随着接枝率的增大,其对含氰废液中氰的吸附效果越来越好。This paper probed preparation of a kind anion-exchange fabric which was first by radiation grafting copolymerization with preirradiated polypropylene non-woven fabric as substrate and methyl methacrylate as the monomer and then by functionalization treatment. Its original application in cyanide-containing wastewater was also investigated.

关 键 词：冶金技术 聚丙烯无纺布 甲基丙烯酸甲酯 辐射接枝 含氰废水 

分 类 号：TQ316.313[化学工程—高聚物工业] TF831[冶金工程—有色金属冶金]