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Electrospinning Fundamentals: Optimizing Solution and Apparatus Parameters
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Synthesis and Process Optimization of Electrospun PEEK-Sulfonated Nanofibers by Response Surface Methodology
Carlo Boaretti1, Martina Roso2, Alessandra Lorenzetti3
1Department of Industrial Engineering, University of Padova, via Marzolo 9, 35131 Padova, Italy. carlo.boaretti@dii.unipd.it.
Materials (Basel, Switzerland)
|August 11, 2017
Summary
Researchers optimized electrospinning of sulfonated polyether ether ketone nanofibers for proton exchange membranes. This process is crucial for developing advanced fuel cell technologies.
Area of Science:
- Materials Science
- Chemical Engineering
Background:
- Proton exchange membranes (PEMs) are critical components in fuel cells.
- Developing efficient and stable PEMs is an ongoing research area.
- Electrospun nanofibers offer potential for novel PEM architectures.
Purpose of the Study:
- To produce electrospun nanofibers of partially sulfonated polyether ether ketone (SPEEK).
- To optimize the electrospinning process for controlled nanofiber morphology.
- To lay the groundwork for developing composite proton exchange membranes for fuel cells.
Main Methods:
- Electrospinning of SPEEK.
- Response surface methodology (RSM) with a Box-Behnken design for process optimization.
- Analysis of process variables (voltage, tip-to-collector distance, flow rate) and material variable (sulfonation degree).
- Statistical validation of a second-order polynomial model.
Main Results:
- A predictive model was developed to understand the influence of process and material parameters on mean fiber diameter.
- Optimized conditions were identified for producing homogeneous thin nanofibers.
- The model was statistically verified and validated through experimental comparison.
Conclusions:
- The study successfully demonstrated the electrospinning of SPEEK nanofibers.
- Optimization using RSM allows for precise control over nanofiber diameter.
- This work is a significant preliminary step towards advanced fuel cell membranes.
