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Mechanical properties of titania nanofiber mats fabricated by electrospinning of sol–gel precursor

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Abstract

Flexible mats of titania fibers are prepared by calcination of electrospun polyvinylpyrrolidone fibers containing titanium isopropoxide precursor. Structural investigation of the calcinated nanofibers by X-ray diffraction (XRD) and electron diffraction (ED) combined with the morphologies by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) show the titania fibers, with an average diameter of 180 nm, were comprised of anatase and rutile crystals. The mechanical, chemical and thermal properties of the titania fiber mats are further investigated by the techniques of Instron mechanical tester, thermogravimetric analyzer (TGA), and Fourier transform infrared spectroscopy (FT-IR). The titania fiber mat prepared in this method exhibited a significant flexibility with 461 MPa Young’s modulus.

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Acknowledgments

This work was supported by Korean Ministry of Education, Science and Technology (Center for Healthcare Technology and Development, and KRF-2007-331-D00119) and Woongjin Chemical Company. We thank Mr. J.G. Kang for University Research Facility for taking high-quality TEM images.

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Authors and Affiliations

  1. Center for Healthcare Technology & Development and Department of Organic Materials and Fiber Engineering, Chonbuk National University, Jeonju, 561-756, South Korea

    Soo-Jin Park & Hak Yong Kim

  2. Polymer Fusion Research Center and Department of Polymer-Nano Science and Technology, Chonbuk National University, Jeonju, 561-756, South Korea

    Kwang-Un Jeong

  3. Departments of Chemical and Biomolecular Engineering, The University of Akron, Akron, OH, 44325, USA

    George G. Chase

Authors
  1. Soo-Jin Park
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  2. George G. Chase
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  3. Kwang-Un Jeong
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  4. Hak Yong Kim
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Corresponding authors

Correspondence to Kwang-Un Jeong or Hak Yong Kim.

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Park, SJ., Chase, G.G., Jeong, KU. et al. Mechanical properties of titania nanofiber mats fabricated by electrospinning of sol–gel precursor. J Sol-Gel Sci Technol 54, 188–194 (2010). https://doi.org/10.1007/s10971-010-2174-0

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  • DOI: https://doi.org/10.1007/s10971-010-2174-0

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