Meltblow Processing of Poly (Ethylene Furanoate)-Bio-Based Polyester Nonwovens

Area of Science:

• Materials Science
• Polymer Science
• Textile Engineering

Background:

• Poly(ethylene furanoate) (PEF) is a bio-based polymer explored as an alternative to petroleum-based poly(ethylene terephthalate) (PET).
• PEF offers potential for applications in packaging, fibers, and technical textiles.
• The meltblown processing of PEF for nonwoven fabric production has not been previously reported.

Purpose of the Study:

• To demonstrate the successful meltblown processing of PEF into nonwoven fabrics.
• To characterize the fiber properties and filtration performance of PEF nonwovens.
• To assess the potential of PEF as a sustainable alternative in nonwoven applications.

Main Methods:

• Meltblowing process was employed to produce PEF nonwoven fabrics.
• Fiber diameter was measured to compare with PET.
• Filtration efficiency was tested for fabrics before and after electrostatic charging.
• Heat shrinkage was evaluated with and without infrared heating modules.

Main Results:

• PEF nonwovens were successfully produced with a median fiber diameter of 2.04 µm, comparable to PET.
• Filtration efficiency exceeded 50% and reached over 90% after electrostatic charging.
• Infrared heating showed potential to minimize heat shrinkage, though PEF's slower crystallization required longer post-treatment.

Conclusions:

• Meltblown PEF nonwovens are a viable bio-based alternative to PET for applications requiring thin layers and high-temperature resistance.
• Further optimization of post-treatment is needed to manage PEF's heat shrinkage.
• PEF nonwovens demonstrate promising filtration properties, especially when electrostatically charged.