聚碳酸酯／TiO_2超细纤维的制备与表征  

Preparation and Characterization of Polycarbonate/TiO_2 Ultrafine Fibers

作　　者：韩晓建[1] 黄争鸣[1] 何创龙[2] 刘玲[3] 董国华[3] 吴庆生[4] 

机构地区：[1]同济大学航空航天与力学学院,上海200092 [2]东华大学生物科学与技术研究所,上海201620 [3]同济大学 航空航天与力学学院,上海200092 [4]同济大学 化学系,上海200092

出　　处：《无机材料学报》2007年第3期407-412,共6页Journal of Inorganic Materials

基　　金：国家自然科学基金(10502038)

摘　　要：静电纺丝是一种有效制备超细纤维的重要方法．以钛酸丁酯作为TiO2前驱体实现了聚碳酸酯(PC)／TiO2的制备,采用TEM、SEM、红外光谱、X射线衍射等方法进行理化性能表征,并测试了材料的抗菌性能．结果表明:当PC与钛酸丁酯质量比为9:1时电纺纤维尺寸较均匀,珠状物最少;7:3时纤维膜对大肠杆菌的抗菌率达到87％左右,以期用于过滤膜、防护服及医疗纺织材料等领域．Functional ultrafine fibers of polycarbonate （PC）/TiO2 were prepared by electrospinning of PC solutions mixed with butyl titanate for possible anti-bacterial applications. Three different mixture ratios, i.e. 9：1, 8：2, and 7：3 by mass between PC and butyl titanate were applied. These fibers were then characterized by scanning electron microscope （SEM）, transmission electron microscope （TEM）, Fourier transform infrared spectroscopy （FTIR） and X-ray diffraction （XRD）. Furthermore, anti-bacterial performance of the nonwoven fiber mats on escherichia coli was also measured. Experimental results show that when the ratio of PC and butyl titanate is 9：1, the resulting fibers are most uniform with least beads on the fiber surfaces. When this ratio is increased to 7：3, however, as high as 87% of the escherichia coli bacteria are killed. The present work demonstrates that an attachment of titania into PC ultrafine fibers leads to a significant improvement in their anti-bacterial ability.

关 键 词：聚碳酸酯 复合超细纤维 抗菌性能 

分 类 号：O614[理学—无机化学]