BA接枝改性聚丙烯纤维对水中邻苯二甲酸二丁酯的吸附  

Polypropylene grafting butyl acrylate and its applications on absorbing DBP in water

作　　者：袁峰[1,2] 魏俊富[1,2] 汤恩旗[1,2] 赵孔银[1,2] 

机构地区：[1]天津工业大学改性与功能纤维天津市重点实验室,天津300160 [2]天津工业大学材料科学与化学工程学院,天津300160

出　　处：《天津工业大学学报》2009年第2期21-24,共4页Journal of Tiangong University

基　　金：天津市高等学校科技发展基金(2006ZD40);天津市科技发展计划项目(06TXTJJC14400);教育部高校博士点基金(20050058001)

摘　　要：采用60Coγ射线共辐照的方法将丙烯酸丁酯(BA)接枝到聚丙烯(PP)纤维上,用红外光谱(IR)和扫描电镜(SEM)对接枝产物进行了表征.接枝纤维对邻苯二甲酸二丁酯(DBP)的吸附结果表明:该纤维对DBP的动力学吸附符合Lagergren二级动力学吸附模型,当DBP质量浓度为20 mg/L时,吸附在60 min达到平衡,平衡吸附量为5.04 mg/g;当DBP质量浓度为15 mg/L时,DBP去除效果最佳达到79.47%;当DBP质量浓度为10 mg/L时,接枝纤维对DBP的吸附容量达到2.88 mg/g,而原纤维在此浓度下对DBP的吸附容量仅为0.63mg/g,吸附能力提高了4.5倍.Polypropylene oil absorption fiber is prepared by radiation-induced graft polymerization of butyl acrylate （BA） onto polypropylene （PP）. Then the grafted polypropylene fiber is characterized by FT-IR spectrometer, Scanning Electron Microscopy （SEM） and Thermo Gravimetric （TG）. The results show that the oil adsorption fibers exhibite good adsorption properties for DBP from water, 79.47% of DBP could be adsorbed when the concentration of DBP is 15 mg/L. And after 60 min, the absorption reaches balance and the absorption capacity reaches 5.04 mg/g when the concentration of DBP is 20 mg/L. The sorption kinetic data can be well described by Lagengren pseudo-second order rate equation. The adsorption capacity of PP-g-BA for DBP reaches 2.88 mg/g when the concentration of DBP is 10 mg/L, while the adsorption capacity of PP only reaches 0.63 mg/g. The adsorption capacity is improved by 4.5 times.

关 键 词：聚丙烯 丙烯酸丁酯 辐照接枝 邻苯二甲酸二丁酯(DBP) 

分 类 号：TS102.61[轻工技术与工程—纺织工程]