Electrospun polyimide/titanium dioxide composite nanofibrous membrane by electrospinning and electrospraying

Lijo Francis, E. Marsano, C. Vijila, R. S. Barhate, V. K. Vijay, S. Ramakrishna, V. Thavasi

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20 Citations (Scopus)

Abstract

Fibrous membrane with a fibre diameter of 229±35 nm was fabricated from polyimide solution by electrospinning. Nanofibrous membrane with a fibre diameter of 251±37 nm was fabricated by combined electrospinning and electrospraying for polyimide/TiO 2. Among the different solvents studied, ethanol was the effective solvent for dispersing the TiO 2 nanoparticles in the nanofibrous matrix during electrospraying. The average pore size of polyimide membrane was obtained in the range 0.79-0.89μm whereas the average pore size of polyimide/TiO 2 membrane was found to be in the range 1.23 μm. The tensile stress of polyimide nanofibrous membrane and also polyimide/TiO 2 composite fibrous membrane determined to be 0.36 MPa and 0.65 MPa respectively. Nanofibrous membrane containing TiO 2 nanoparticles on the surface of the polyimide nanofibres improved the mechanical stability of the membrane.

Original languageEnglish
Pages (from-to)1154-1159
Number of pages6
JournalJournal of Nanoscience and Nanotechnology
Volume11
Issue number2
DOIs
Publication statusPublished - Feb 2011
Externally publishedYes

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Keywords

  • Biogas
  • Mechanical strength
  • Nanocomposites
  • Nanofibers
  • Tensile strength

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Biomedical Engineering
  • Materials Science(all)
  • Condensed Matter Physics

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