Multiple-Jet Needleless Electrospinning Approach via a Linear Flume Spinneret

Area of Science:

• Materials Science and Engineering
• Nanotechnology
• Polymer Science

Background:

• Conventional single-needle electrospinning has limitations in nanofiber quality and productivity.
• Needleless electrospinning methods are sought after for increased production rates.
• Existing needleless techniques require further development for industrial scalability.

Purpose of the Study:

• To develop a novel linear flume spinneret for needleless electrospinning.
• To investigate the fabrication of nanofibers using the developed spinneret.
• To assess the impact of process parameters on nanofiber characteristics and production yield.

Main Methods:

• Development of a novel linear flume spinneret with multiple jets in two rows.
• Fabrication of nanofibers using the needleless electrospinning technique.
• Systematic investigation of process parameters, including solution concentration, applied voltage, and collection distance.
• Characterization of nanofiber diameter, error, and production rate.

Main Results:

• Successful fabrication of high-quality nanofibers with controlled diameter (108 ± 26 nm) and error (24%).
• Demonstrated significant increase in nanofiber productivity, reaching 4.85 ± 0.36 g/h.
• Identified solution concentration as a key factor influencing nanofiber diameter.

Conclusions:

• The novel linear flume spinneret enables efficient, high-quality nanofiber fabrication.
• The developed needleless electrospinning technology offers a 24-fold increase in productivity compared to single-needle methods.
• This approach shows substantial potential for the industrial-scale mass production of nanofibers.