Journal
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
Volume 61, Issue 1, Pages 65-85Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.iecr.1c03444
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Funding
- National Science Foundation Partnership for Research and Education in Materials program [DMR-2122178]
- PPG Foundation
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Melt blowing is a widely used process for manufacturing nonwoven fiber products, where the structural features and properties of the final product are determined by a complex interplay of factors. Experimental investigations have advanced fundamental understanding in this area, but face challenges, prompting interest in mathematical models and computer simulations.
Melt blowing is a widely used process for manufacturing nonwoven fiber products with applications spanning healthcare, agriculture, transportation, and infrastructure, among others. The process includes extrusion of a polymer melt through orifices, drawing fiber using high-speed air jets, solid-ification by cooling with entrained ambient air, and collection in the form of a fiber mat. The structural features and properties of the final mat are determined by a complex interplay between materials selection and fiber dynamics, air flow, and temperature characteristics from die to collector. For the latter, both process variable values and geometrical factors have substantial influence. Many experimental investigations have advanced fundamental understanding in this area, but these studies are challenging due to high air velocities, high temperatures, and the often space-constrained nature of the process, especially near the die exit. Such complexities have sparked significant interest in developing mathematical models and using computer simulations to reveal deeper fundamental insights. Herein, we review advances in melt blowing simulations by presenting employed methods and key findings in the area. We finish by describing some challenges and opportunities for further research.
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