电子束辐照接枝法制备改性聚丙烯纤维吸附材料  

Preparation of sorbent by electron beam irradiation grafting modified polypropylene fiber

作　　者：周斌[1] 王山英 张迎东[3] 卢琛春 魏俊富[3] 

机构地区：[1]天津工业大学材料科学与工程学院,天津300387 [2]福建鑫华股份有限公司,福建泉州362241 [3]天津工业大学环境与化学工程学院,天津300387

出　　处：《天津工业大学学报》2014年第2期15-18,共4页Journal of Tiangong University

基　　金：教育部高等学校博士学科点专项科研基金博导类(20101201110001);新教师类(20111201120004);泉州市科技计划项目(2012G34)

摘　　要：通过电子束辐照诱导接枝法,在聚丙烯(PP)纤维基体上分两步接枝丙烯酸(AA)及甲基丙烯酸丁酯(BMA)单体,制备了新型改性聚丙烯吸附材料.首先,通过电子束辐照诱发AA接枝到PP基体上,然后将改性聚丙烯浸泡在BMA单体溶液中,再次辐照接枝.讨论了单体浓度、辐照时间对聚丙烯接枝率的影响.利用衰减全反射红外光谱(FT-IR)和扫描电子显微镜(SEM)对接枝改性前后聚丙烯纤维基体表面的化学组成和形貌结构进行了表征.结果表明:BMA被成功接枝到PP纤维上,当单体BMA的接枝率为17.24%时,对DMP和DEP的吸附倍率达到最大值,分别为18.17 g/g和20.25 g/g.A novel composite polypropylene-acrylate sorbent PP-g-（AA＋BMA） is prepared by grafting acrylic acid （AA） and butyl methacrylate （BMA） on the polypropylene （PP） fiber substrate using two-step electron beam irradiation method. First, AA was grafted onto PP substrate by electron beam. Then, the pretreated PP was soaked in BMA solution and the loaded monomer was grafted on the PP substrate by electron beam induced. Fourier transform infrared spectra （FT-IR） and scanning electron microscopy （SEM） were employed to characterize the morphological changes and chemical composition of PP substrate. In addition, the factors influenced the grafting degree were discussed, such as the irradiation time, concentration of monomer. The results indicated that the filtration efficiency of PP fiber was improved significantly after graft modification, when the grafting degree was 17.24%, the maximum sorption capacity for DMP reached 18.17 g/g and 20.25 g/g for DEP, respectively.

关 键 词：聚丙烯纤维 接枝聚合反应 甲基丙烯酸酯 接枝率 吸附倍率 电子束辐照接枝法 

分 类 号：TS102.528.3[轻工技术与工程—纺织工程] TQ342.86[轻工技术与工程—纺织科学与工程]