Nanocomposite Fiber Based Web and Membrane Formation and Characterization

Abstract

Electrospinning is used to produce polyvinyl alcohol (PVA) fibers. Electrospun nano and micro sized fibers are collected on nonwoven fabrics to form a web and membranes. Optimization is carried out by considering some of the parameters, such as voltage, spinning time, polymer solution, distance between the collector and the needle. Beading effect, effect of solution viscosity, and voltage are investigated. Mechanical and thermal properties are measured by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). Surface tension properties are examined. Glass transition and melting temperature are increased with the addition of nanoclay to PVA. Nanoclay also increases the barrier properties and thermal stability of PVA fibers. Yarn samples are produced by twisting nano-micro fibers. Tensile strength of the yarn samples is measured.

Keywords

nano fibers electrospinning web membrane yarn differential scanning calorimetry (DSC)thermogravimetric analysis (TGA)surface tension nanoclay glass transition temperature.

References

Huang, Z.M. , Zhang, Y.Z. , Kotaki, M. and Ramakrishna, S. (2003). A Review on Polymer Nanofibers by Electrospinning and Their Applications in Nanocomposites, Comp. Sci. and Techn. , 63(15): 2223—2253.

Formhals, A. (1934). Process and Apparatus for Preparing Artificial Threads, US Patent 1,975,504.

Formhals, A. (1939). Artificial Fibers from Materials such as Cellulose Acetate, US Patent 2,158,415.

Formhals, A. (1943). Apparatus for Producing Artificial Fibers from Fiber-forming Liquids by an ``Electrical Spinning'' Method, US Patent, 2,323,025. 5. Formhals, A. (1944). Spinner for Synthetic Fibers, US Patent, 2,349,950.

Vonnegut, B. and Neubauer, R. (1952). Production of Monodisperse Liquid Particles by Electrical Atomization, J. of Colloid Science, 7: 616—622.

Simons, H.L. (1966). Process and Apparatus for Producing Patterned Nonwoven Fabrics, US Patent 3,280,229.

Baumgarten, P.K. (1971). Electrostatic Spinning of Acrylic Microfibers, J. of Colloid and Interface Science , 36(1): 71—79.

Hohman, M.M. , Shin, M. , Rutledge, G. and Brenner, M.P. (2001). Electrospinning and Electrically Forced Jets. I. Stability Theory, Physics of Fluids, 13(8): 2201—2221.

Jaworek, A. and Krupa, A. (1999). Classification of the Modes of End Spraying, J. Aerosol Sci., 30(7): 873—893.

10.

Fridrikh, S.V. , Yu, J. , Brenner, M. and Rutledge, G. (2003). Controlling the Fiber Diameter during Electrospinning, Physical Review Letters, 90(14): 144502-1—144502-6.

11.

Hohman, M. , Shin, M. , Brenner, M. and Rutledge, G. (2001). Electrospinning and Electrically Forced Jets. II. Applications, Physical Fluids, 13(8): 2201—2220.

12.

Ko, F. , Gogotsi, Y. , Ali, A. , Naguib, N. , Ye, H. , Yang, G. , Li, C. and Willis, P. (2003). Electrospinning of Continuous Carbon Nanotube-filled Nanofiber Yarns, Adv. Mater., 15(14): 1161—1165.

13.

Deitzel, J.M. , Kleinmeyer, J. , Harris, D. and Tan, N.C.B. (2001). The Effect of Processing Variables on the Morphology of Electrospun Nanofibers and Textiles, Polymer, 42(1): 261—272.

14.

Zuo, W. , Zhu, M. , Yang, W. , Yu, H. , Chen, Y. and Zhang, Y. (2005). Experimental Study on Relationship between Jet Instability and Formation of Beaded Fibers during Electrospinning, Polymer Engineering and Science, 45(5): 704—709.

15.

Dzenis, Y. (2004). Spinning Continuous Fibers for Nanotechnology , Material Science, 304(5679): 1917—1919.

16.

Krishnan, J. , Kotaki, M. , Yanzhong, Z. , Xiumei, M. and Ramakrishna, S. (2004). Recent Advances in Polymer Nanofibers, J. of Nanoscience and Nanotechnology, 4(1—2): 52—65.

17.

Ascioglu, B. (2005). Manufacturing and Heat Transfer Analysis of Nano-micro Fiber Composites, PhD Dissertation, Auburn University, Auburn, AL.

18.

Zhang, C. (2005). Study of Morphology of Electrospun Poly (vinyl alcohol) Mats, European Polymer Journal, 41(3): 423—432.

19.

www.erkol.com (accessed 3 January 2006).

20.

ww.nycon.com (accessed 22 July 2006)

21.

Smit, E. , Büttner, U. and Sanderson, R.D. (2005). Continuous Yarns from Electrospun Fibers, Polymer, 46(8): 2419—2423.