Indian Journal of Fibre & Textile Research

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Polyacrylonitrile and Polylactic Acid Blend Nanofibre Spinning Using Needleless Electrospinning Technique


Affiliations
1 College of Engineering and Technology, Mahalaxmi Vihar, Bhubaneswar 751 029, India
2 Bombay Textile Research Association, Mumbai 400 086, India
 

In this work, polyacrylonitrile (PAN) and polylactic acid (PLA) blended polymers have been used to prepare a flexible and partially biodegradable electrospun nanofibre sheet suitable for filtration application. Also, acetone has been used as a replacement of dimethyl formamide (DMF) during spinning and a needleless (wire electrode) electrospinning machine has been used for filament preparation. Initially, PAN fibre is spun with DMF and various parameters, such as polymer concentration, voltage, distance between electrodes and RH%, are standardised. With these standard parameters, PLA is then added with PAN, and PLA concentration is optimised without affecting the desired fibre diameter. Further, the amount of acetone with DMF is also standardised without affecting the fibre diameter. Finally, polymer concentration of 2.5% PAN with 0.5% of PLA, a potential difference of 55 kV, electrode distance of 125mm at 35% RH and 10% acetone are found suitable for getting the desired nanofibre with minimum diameter.

Keywords

Filter Fabric, Nanofibre, Needleless Electrospinning, Nonwoven, PAN/PLA Blend, Polyacrylonitrile, Polylactic Acid, Polypropylene, Wire Electrode.
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  • Polyacrylonitrile and Polylactic Acid Blend Nanofibre Spinning Using Needleless Electrospinning Technique

Abstract Views: 138  |  PDF Views: 105

Authors

Rudrapratap Sahoo
College of Engineering and Technology, Mahalaxmi Vihar, Bhubaneswar 751 029, India
Bibhu Prasad Dash
College of Engineering and Technology, Mahalaxmi Vihar, Bhubaneswar 751 029, India
Prasanta Kumar Panda
Bombay Textile Research Association, Mumbai 400 086, India

Abstract


In this work, polyacrylonitrile (PAN) and polylactic acid (PLA) blended polymers have been used to prepare a flexible and partially biodegradable electrospun nanofibre sheet suitable for filtration application. Also, acetone has been used as a replacement of dimethyl formamide (DMF) during spinning and a needleless (wire electrode) electrospinning machine has been used for filament preparation. Initially, PAN fibre is spun with DMF and various parameters, such as polymer concentration, voltage, distance between electrodes and RH%, are standardised. With these standard parameters, PLA is then added with PAN, and PLA concentration is optimised without affecting the desired fibre diameter. Further, the amount of acetone with DMF is also standardised without affecting the fibre diameter. Finally, polymer concentration of 2.5% PAN with 0.5% of PLA, a potential difference of 55 kV, electrode distance of 125mm at 35% RH and 10% acetone are found suitable for getting the desired nanofibre with minimum diameter.

Keywords


Filter Fabric, Nanofibre, Needleless Electrospinning, Nonwoven, PAN/PLA Blend, Polyacrylonitrile, Polylactic Acid, Polypropylene, Wire Electrode.

References