Paper Number
PO32                         My Program 

Session
Poster Session

Title
Extensional rheology and spinnability of polyvinylpyrrolidone solutions

Presentation Date and Time
October 22, 2025 (Wednesday) 6:30

Track / Room
Poster Session / Sweeney Ballroom E+F

Authors (Click on name to view author profile)

  1. Edano, Louie (University of Illinois Chicago, Chemical Engineering)
  2. Slykas, Cheryl (University of Illinois Chicago, Chemical Engineering)
  3. Trada, Vihar (University of California, Los Angeles, Chemical and Biolmolecular Engineering)
  4. Martinez Narvaez, Carina (University of Chicago, Pritzker School of Molecular Engineering)
  5. Reddy, Naveen (imec)
  6. Sharma, Vivek (University of Illinois Chicago)

Author and Affiliation Lines (in printed abstract book)
Louie Edano1, Cheryl Slykas1, Vihar Trada2, Carina Martinez Narvaez3, Naveen Reddy4 and Vivek Sharma1
1Chemical Engineering, University of Illinois Chicago, Chicago, IL 60607; 2Chemical and Biolmolecular Engineering, University of California, Los Angeles, Los Angeles, CA; 3Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL; 4imec, Limburg, Flemish, Belgium

Speaker / Presenter 
Edano, Louie

Keywords
experimental methods; additve manufacturing; applied rheology; non-Newtonian fluids; polymer solutions; techniques

Text of Abstract
Centrifugal Force Spinning (CFS) provides an alternative fiber spinning method from other well-developed fiber spinning methods, and allows for quick and efficient manufacture of continuously spun fibers. In this contribution we investigate how polymer solution properties such as the presence of polymer entanglements, extensional relaxation time, and evaporation rate affect the fiber spinning process. These parameters are compiled through torsional rheometry, Dripping-onto-Substrate (DoS) protocols, and thermogravimetric analysis (TGA). Paired together with fiber spinning process parameters, these properties are used to provide an optimized processability map, predicting fiber formation and morphology. The fibers produced are analyzed through SEM imaging and the mechanical fiber mat properties are measured.