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Electrospinning: the technique Uni-axial stretching of a visco-

elastic solution (polymeric) by the mean of electrostatic forces.

The resultant nonwoven provide very porous arrangement where the pores are interrelated in the structure, with an overall high surface area compared to regular textiles.

The fibers can also be reinforced with nanoparticles, conferring different characteristics to the final product.

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Electrospinning: the technique

http://nano.mtu.edu/Electrospinning_start.htmlJeong Moon Seo , Dr. Patricia A. Heiden, Dr. Michael E. Mullins, Dr. Susan E. Hill

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Electrospinning set-up

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Syringe Pump

GroundedCollectorPositive

Tip

+ + +

PowerSupply

Tip-Collector Distance

(TCD)

Voltage

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Electrospinning parameters

Temperature Humidity

Air velocity

Ambient parameters

Viscosity Conductivity

Surface Tension

Electric FieldFlow Rate

Tip-Collector Distance

Solution properties

ES Conditions

Fiber diameterPolymericsolution

HighVoltage

Polymer fibers

(μm-nm)

Fiber diameter can be tuned

by modifyi

ng differen

t conditio

ns

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Why Electrospun fibers?

Superior surface area

Controllable fiber surfaces, diameters, morphologies, structures, and functionalities

Improved mechanical performance

Diameters of fibers in the nano-order

Continuous single nanofibers

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Applications

Electrospinning has recently received great

attention in the fabrication of polymer nanofibers in a wide range of applications

that demand high-performance materials for clothing, filtration,

and biomedical materials. Other opportunities for

electrospun fibers and ensuing structures

include the fabrication of scaffolds for tissue engineering, in drug delivery, biosensors, and electronic and semi-conductive

materials.

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References•Maria S. Peresin, Youssef Habibi, Justin O. Zoppe, Joel J. Pawlak, and Orlando J. Rojas “Nanofiber Composites of Polyvinyl Alcohol and Cellulose Nanocrystals: Manufacture and Characterization”. Biomacromolecules 2010, 11, 674–681

•Justin O. Zoppe, Maria S. Peresin, Youssef Habibi, Richard A. Venditti, and Orlando J. Rojas “Reinforcing Poly(ε-caprolactone) Nanofibers with Cellulose Nanocrystals”. ACS Applied Materials and Interfaces 2009 , 1, 9, 1996-2004

• http://nano.mtu.edu/Electrospinning_start.html Jeong Moon Seo , Dr. Patricia A. Heiden, Dr. Michael E. Mullins, Dr. Susan E. Hill. University of Michigan, 2005

•W.E. Teo, S. R., A review on electrospinning design and nonafibre assemblies. Nanotechnology 2006, 17, 89-106.

•Bin Ding, H.-Y. K., Se-Chul Lee, Chang-Lu Shao, Douk-Rae Lee, Soo-Jin Park, Gyu-Beom Kwag, Kyung-Ju Choi, Preparation and Characterization of a Nanoscale Poly (vinyl alcohol) Fiber Aggregate Produced by an Electrospinning Method. Journal of Polymer Science: Part B: Polymer Physics 2002, 40, 1261-1268.

•Bin Ding, H.-Y. K., Se-Chul Lee, Douk-Rae Lee, Kyung-Ju Choi, Preparation and characterization of a nanoscaled Poly(vinyl alcohol) fibers via electrospinning. Fibers and Polymers 2002, 3, (2), 73-79.

•U.S. Sajeev, K. A. A., Deepthy Menon, Shanti Nair, Control of nanostructures in PVA, PVA/chitosan blends and PCL through electrospinning. Indian Academy of Science 2008, 31, (3), 343-351.

•M.A.Samir; F. Alloin; Dufresne, A., Review of recent research into cellulosic whiskers, their properties and their application in nanocomposite field. Biomacromolecules 2005, 6, 612-626.