Preparation and Characterization of Polycarbonate/TiO2 Ultrafine Fibers

doi:10.3724/SP.J.1077.2007.00407

Journal of Inorganic Materials

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Preparation and Characterization of Polycarbonate/TiO₂ Ultrafine Fibers

HAN Xiao-Jian^1,2,4, HUANG Zheng-Ming¹, HE Chuang-Long³, LIU Ling¹, DONG Guo-Hua¹, WU Qing-Sheng⁴

1. School of Aerospace Engineering & Applied Mechanics, Tongji University, Shanghai 200092, China; 2. College of Light-textile Engineering and Art, Anhui Agricultural University, Hefei 230036, China; 3. Institute of Biological Sciences and Biotechnology, Donghua University, Shanghai 201620, China; 4. Departpment of Chemistry, Tongji University, Shanghai 200092, China

Received:2006-07-10 Revised:2006-10-11 Published:2007-05-20 Online:2007-05-20

Abstract

Abstract:

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.

Key words: polycarbonate, composite ultrafine nanofibers, anti-bacterial performance

CLC Number:

O614

HAN Xiao-Jian,HUANG Zheng-Ming,HE Chuang-Long,LIU Ling,DONG Guo-Hua,WU Qing-Sheng. Preparation and Characterization of Polycarbonate/TiO₂ Ultrafine Fibers[J]. Journal of Inorganic Materials, DOI: 10.3724/SP.J.1077.2007.00407.

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Preparation and Characterization of Polycarbonate/TiO₂ Ultrafine Fibers

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