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Electrospinning
This presentation introduces electrospinning, a process that uses electric force to produce polymer fibers with diameters as small as a few hundred nanometers. It discusses the history of electrospinning, the basic apparatus and process, advantages and disadvantages of nano fibers produced, and common uses of electrospinning such as in filtration, medical applications, textiles, and more. The presentation was given by MD Didarul Islam and provides an overview of electrospinning.
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Electrospinning
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- 3. CONTENT History Introduction Apparatus Process Nano fibers Advantageand disadvantage Uses of Electrospinning
- 4. HISTORY William J. Morton Whowas patented of Electrospinning in july 1902
- 5. INTRODUCTION • Electrospinning isa fiber production method which uses electric force to draw charged threads of polymer solutions or polymer melts up to fiber diameters in the order of some hundred nanometers. • Electrospinning mainly used in voltage for this reason we can called Electrospinning. Usually we shall used 10-50 kv voltage
- 6. • By Electrospinningprocess we can produced nano fiber 1-100nm diameter fibers are Nano fiber. Nanofibers
- 7. APPARATUS • Syringe • Polymersolution • Syringe pump • Needle • High Voltage • Tylor Cone • Jet • Collector Plate
- 8. PROCESS VERTICAL SET UPHORIZONTAL SET UP
- 9. CONT… • The polymersolution is pumped to the tip of the needle • An electric field is created between the tip of the needle and the collector plate by applying high voltage in the system. • When the surface tension in the liquid droplet is overcome by the force of the electric field, the droplet is distorted forming the so called taylor cone. The distortion leads to an electrically charged jet ejection that moves towards the collector transforming thin fibers. When a rotating collector is used aligned polymer fibers are generated.
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- 11. NANO FIBERS ADVANTAGEAND DISADVANTAGE ADVANTAGE • Inexpensive setup, • Ability to control many factors, such as the fiber diameter, orientation, and composition • High surface area to volume ratio • Ease of material combination DISADVANTAGE • Use on organic solvents • Limited control of pore structures
- 12. USES OF ELECTROSPINNING Filtration Medical •Liquid filtration • Gas filtration • Molecular filtration • Drug delivery carrier • Hemostatic devices • Wound dressing
- 13. Cosmetic skin masks Textilemanufacturing Pharmaceutical manufacturing Catalysts • Skin cleansing • Skin healing • Skin therapy