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					                                               www.nanofmgroup.com 1




LOGO




                                G
                   M
NANOFIBER PRODUCTION via
ELECTROSPINNING


                  F
              o
           n
         a

               TUNCAY GÜMÜŞ
       N


                 515071020

                   NanoFiber Membranes Group
                     www.nanofmgroup.com
                                       www.nanofmgroup.com 2




CONTENTS




                               G
                         M
                 DEFINITIONS




                        F
         R
    OFIBER




                                   Process


                    o
             ELECTROSPINNING        Material
 NANO




                 n
                                   Parameters
             a

             APPLICATIONS
             N
                                     www.nanofmgroup.com 3




NANOTECHNOLOGY




                                 G
                                 M
                                F
Controls molecular scale
Produce <100nm materials
Fabricate <100 nm devices
                            o
                    n
Interdisciplinary science
                a
           N
                                                         www.nanofmgroup.com 4




NANOTECHNOLOGY
& NANOFIBERS




                                          G
NANOFIBER




                                  M
Fiber diameter less than 1 µ, Nanofiber production techniques
refers as nanotechnology




                                 F
                          o
                     n
                 a

 Human Hair       Nanofibers
              N
                             www.nanofmgroup.com 5




NANOFIBERS




                      G
      Wool




                      M
                          Surface area
Microfiber




                     F
                 o             Porosity
                 n
Nanofiber
             a
             N


                           Rigid, flexible
                           Rigid fle ible
                                 www.nanofmgroup.com 6




NANOFIBER PRODUCTION
TECHNIQUES




                             G
         PHASE SEPARATION




                        M
  P                                       N
  O      MELT FIBRILLATION                A




                       F
                                          N
  L      ELECTROSPINNING
                                          O
  Y                                       F
               o
         ISLAND-IN-THE-SEA
  M          GAS JET
                                          I
            n
  E                                       B
         NANOLITROGRAPHY                  E
         a
  R                                       R
          SELF ASSEMBLY
      N


          MELT BLOWING
                                                                                       www.nanofmgroup.com 7




MILESTONES OF
ELECTROSPINNING
                                                                                   Reneeker




                                                                     G
             Formhals




                                                        M
                 1930                                                               1990




                                                       F
                                           o
                                     n
                                   1950                                  1980
                              a
                        N


       • William Gilbert                    • Simons
       • Lord Rayleigh                      • Taylor                            • Martin
       • Zeleny                             • Ba mgarten
                                              Baumgarten                        • How

Formhals, Method and apparatus for spinning, US Patent Specification 2160962
                                                                         www.nanofmgroup.com 8




ELECTROSPINNING
RESEARCH




                                                                     G
          600




                                                                     M
          500




                                                                    F
           400


           300




                                                             o
           200


           100
                                                 n
                0
                    19981999
                            20002001
                                      a
                                     2002   2003 2004
                                                        2005 2006
                             N


                    Publication                   Patent




Matthew T Hunley and Timothy E Long, Polym Int 57:385–389 (2008)
                                                     www.nanofmgroup.com 9




MOST USED POLYMER IN
ELECTROSPINNING




                                    G
            SOLUTION                       MELT




                                 M
  • CELLULOSE ACETATE (CA)




                                F
  • NYLON 6.6 (PA 6.6)
                                • POLY(PROPYLENE) (PP)
  • POLY(URETHANE)

                         o
                                • POLY(ETHYLENE) (PE)
  • POLY(ACRYLONITRILE) (PAN)
                                • POLY(URETHANE) (TPU)
                         n
  • POLYVINYL ALCOHOL (PVA)
                                • NYLON 12 (PA 12)
  • POLY LACTIC ACID
                 a

  • NYLON 6 (PA 6)
             N
                                          www.nanofmgroup.com 10




ELECTROSPINNING




                              G
                         M
  SOLVENT           POLYMER               HEAT




                        F
 POLYMER SOLUTION                 MELT POLYMER


                    o
                ELECTROSPINNING
                n
 EVAPORATION
               a
                                        DRAWING
   DRAWING
            N


                    NANOFIBER
                                                                    www.nanofmgroup.com 11




ELECTROSPINNING
PROCESSS




                                                      G
  Three Main Components of Electrospinning




                                      M
                           Polymer Solution




                                     F
                                                                   Taylor Cone
                                                                  Taylor Cone
  Feeding Unit


High Voltage Power
Supply(15000-25000      o                               Fiber
                                                      Formation
                     n
                           High Voltage
Volt)                                                               Fiber Web
                                                                    Fiber Web
                    a
                           H
             N


   Collector Unit
                                          Collector
                                                        www.nanofmgroup.com 12




ELECTROSPINNING
PROCESSS




                                                    G
                                          M
                                         F
                                o
                           n
                      a
                 N



http://nano.mtu.edu/documents/Electrospinning.swf
                                                 www.nanofmgroup.com 13




FACTORS AFFECTING
ELECTROSPUN FIBERS




                                    G
  SOLUTION PARAMETERS




                               M
                              F
    Solution Viscosity

    Conductivity of Polymer, Solvent, Solution

    Solution Temperature o
                  n
              a
    Added salts to solution
         N


    Vapour Pressure of Solution
                                 www.nanofmgroup.com 14




FACTORS AFFECTING
ELECTROSPUN FIBERS




                             G
     PROCESS PARAMETERS




                             M
                            F
Shape of C ll
Sh     f Collector

Geometry of Spinneret
                        o
                     n
Solution Flow Rate
                  a

Tip to Collector Distance
Ti t C ll t Di t
            N


Applied Voltage
                                        www.nanofmgroup.com 15




FACTORS AFFECTING
ELECTROSPUN FIBERS




                               G
   AMBIENT PARAMETERS




                             M
  Environment Temperature




                            F
  Environment Humidity

                    o                 SURFACE
                n
                                      TENSION
                     ELECTROSTATIC
            a
                           FORCES
         N


                               EVAPORATION
                                      RATE
                      www.nanofmgroup.com 16




SEM OF
NANOFIBERS




                  G
                  M
                 F
             o
             n
        a
      N
                      www.nanofmgroup.com 17




SEM OF
NANOFIBERS




                  G
                  M
                 F
             o
             n
        a
      N
                      www.nanofmgroup.com 18




SEM OF
NANOFIBERS




                  G
                  M
                 F
             o
             n
        a
      N
                      www.nanofmgroup.com 19




SEM OF
NANOFIBERS




                  G
                  M
                 F
             o
             n
        a
      N
                      www.nanofmgroup.com 20




SEM OF
NANOFIBERS




                  G
                  M
                 F
             o
             n
        a
      N
                                                     www.nanofmgroup.com 21




APPLICATIONS




                                       G
                          TECHNICAL




                               M
                           TEXTILES
                                                    NANOFIBER




                              F
              ENERGY                  FILTRATION



                          o
                          MEDICAL
                   n
AUTOMOTIVE
                a

             PROTECTIVE
                                      AGRICULTURE
             N


             MATERIALS
                                     www.nanofmgroup.com 22




 TECHNICAL TEXTILES




                                 G
                          M
                         F
• Sport Apparels
• Sport Shoes
         g
                   o     g
• Climbing, Mountaineering,
  Rainwear, Outerwear Garments
               n
• Baby Diapers
            a
        N
                                                   www.nanofmgroup.com 23




   MEDICAL




                                   G
                            M
                                                    Bone




                           F
                                PU Nanofiber     Regeneration
• Artificial organ components   Wound Dressing     Implant
• Tissue engineering
• Implant material
• Drug delivery     o
                n
• Wound dressing
            a
• Medical textile materials
                                          Antibiotic
        N


                                        Impregnated
                                     Nanofiber Membrane
                                     www.nanofmgroup.com 24




     PROTECTIVE
     MATERIALS




                                 G
                               M
                              F
•S   d b     ti     t i l
 Sound absorption materials
• Protective clothings against
chemical,
                       o
chemical biological warfare
agents
                  n
• Sensor applications for
              a

detecting chemical agents
          N
                                www.nanofmgroup.com 25




    ENERGY




                            G
                            M
• Batteries




                           F
• Photovoltaic Cells
• Polymer Electrolytes
                       o
                 n
• Membrane Fuel Cells
              a
          N
                                    www.nanofmgroup.com 26




     FILTRATION




                                G
                                M
• HVAC system filters (HEPA,




                               F
ULPA)
• Air, oil, fuel filters for
automotive
• Filters for beverage,    o
                      n
pharmacy, medical
  pp
applications
                 a
           N
                                   www.nanofmgroup.com 27




    AGRICULTURE




                               G
                               M
                              F
• Protecting plants against
green house effect

                      o
• Protecting plants from
                  n
cold circumstances
              a
          N
                                                 www.nanofmgroup.com 28




CONCLUSION




                                 G
        Low operating cost




                        M
        High surface area
        Low energy consumption




                       F
        High fiber orientation




               o
          n
         Hazadous organic solvents
         Laboratory scale
       a

         Lower production rate than current systems
     N
                    www.nanofmgroup.com 29




LOGO




                G
                M
               F
           o
           n
       a
       N

				
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