Chem. J. Chinese Universities ›› 2009, Vol. 30 ›› Issue (9): 1885.

• Articles • Previous Articles     Next Articles

Morphology and Property of PVA/SiO2-TiO2 Hybrid Electrospun Fibers

MA Hai-Hong, SHI Tie-Jun*   

  1. School of Chemical Engineering, Hefei University of Technology, Hefei 230009, China
  • Received:2008-12-26 Online:2009-09-10 Published:2009-09-10
  • Contact: SHI Tie-Jun. E-mail: stjhfut@163.com
  • Supported by:

    国家自然科学基金(批准号: 50373010)资助.

Abstract:

The spin solutions of PVA/SiO2-TiO2 hybrid materials were prepared by sol-gel method with tetraethoxysilane (TEOS), tetrabutyl titanate (TBT) and poly (vinyl alcohol) (PVA), then fiber membranes were obtained by electrospinning. FTIR results show that hydroxyl in PVA condenses with hydroxyl of hydrolyzing TEOS and TBT; the hybrid electrospinning fiber membranes are linked by the form of network configuration. XRD result indicates that the degree of crystallinity of hybrid electrospun fiber membranes decline comparing with pure PVA electrospun fiber membrane. SEM pictures reveal that the diameter of the electrospun fibers increase and some curved fibers exist with the increasing (SiO2-TiO2) contents. UV-Vis measurements show that the ability is improving of shielding to ultraviolet with the adding of TiO2. TGA measurements suggest that the hybrid fiber shows better resistance to heat than pure PVA electrospun fiber. Water resistance and stability testing indicated that the hybrid fiber shows better water resistance and stability than pure PVA and PVA/SiO2 electrospun fiber.

Key words: Sol-gel method; Polylumye alcohol(PVA); SiO2-TiO2; Hybrid; Electrospinning fiber

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