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Double Bubble Electrospinning: Patents and Nanoscale Interface.
Muhammad Ali1, Ya Li2, Ji-Huan He1
1National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, China.
Recent Patents on Nanotechnology
|October 25, 2023
Summary
This study introduces double bubble electrospinning to create bipolymeric nanofibers with a defined interface. This method enhances nanofiber properties and thermal stability, paving the way for new functional materials.
Area of Science:
- Materials Science
- Polymer Science
- Nanotechnology
Background:
- Bipolymeric nanofibers offer enhanced functionality and mechanical properties.
- Fabricating composite fibers with a well-defined polymer-polymer interface is challenging.
Purpose of the Study:
- To develop and validate a double bubble electrospinning method for creating bipolymeric nanofibers with an interface.
- To compare the properties of these interfacial nanofibers with pure polymers and blends.
Main Methods:
- Simulated electric field using Maxwell 3D for a double bubble electrospinning setup.
- Simultaneously electrospun polyvinylpyrrolidone (PVP) and polyvinyl alcohol (PVA) to form interfacial nanofibers.
- Characterized nanofibers using SEM, FTIR, and TGA.
Main Results:
- SEM confirmed side-by-side PVA/PVP interfacial nanofibers.
- Increased voltage (20 kV to 40 kV) reduced nanofiber diameter significantly (60.8% for PVA, 66.3% for PVP).
- FTIR confirmed both polymers' presence; TGA showed 14.28% higher weight retention post-degradation compared to controls.
Conclusions:
- Double bubble electrospinning is a viable method for fabricating bipolymeric interfacial nanofibers.
- The technique offers potential for developing novel functional nanofibers with improved properties.
- This approach opens new avenues for nanofiber applications and intellectual property.
