Fiber spinning from polymer solutions

The thinning of a cylinder of a polymer solution in a volatile solvent is argued to be controlled by solvent diffusion through a dense polymer layer at the cylinder surface. This naturally leads to the exponential time dependence of cylinder radius that is observed in experiments using a fast camera, such as capillary breakup extensional rheometry (CaBER). The relaxation time is controlled by the thickness of the dense (and often glassy) polymer layer and the diffusion coefficient of solvent through that layer. If correct, this means that while CaBER is very useful for understanding fiber spinning, the relaxation time does not yield a measure of the extensional viscosity of polymer solutions in volatile solvents.

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Work Title Fiber spinning from polymer solutions
Access
Open Access
Creators
  1. Ralph H. Colby
Keyword
  1. wet spinning
  2. dry spinning
  3. solvent evaporation
  4. capillary breakup extensional rheometry
  5. dripping on a substrate
License CC BY 4.0 (Attribution)
Work Type Article
Publisher
  1. Journal of Rheology
Publication Date November 2, 2023
Publisher Identifier (DOI)
  1. 10.1122/8.0000726
Related URLs
Deposited October 22, 2024

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Version 1
published

  • Created
  • Updated
  • Added Creator Ralph H. Colby
  • Updated Work Title, Publisher, Publisher Identifier (DOI), and 2 more Show Changes
    Work Title
    • Fiber Spinning from Polymer Solutions
    • Fiber spinning from polymer solutions
    Publisher
    • TRANS. SOC. RHEOL.
    Publisher Identifier (DOI)
    • 10.1122/8.0000726
    Description
    • <p>The thinning of a cylinder of a polymer solution in a volatile solvent is argued to be controlled by solvent diffusion through a dense polymer layer at the cylinder surface. This naturally leads to the exponential time dependence of cylinder radius that is observed in experiments using a fast camera, such as capillary breakup extensional rheometry (CaBER). The relaxation time is controlled by the thickness of the dense (and often glassy) polymer layer and the diffusion coefficient of solvent through that layer. If correct, this means that while CaBER is very useful for understanding fiber spinning, the relaxation time does not yield a measure of the extensional viscosity of polymer solutions in volatile solvents.</p>
    Publication Date
    • 2023-11-01
  • Updated
  • Updated Publisher Show Changes
    Publisher
    • TRANS. SOC. RHEOL.
    • Journal of Rheology
  • Updated Creator Ralph H. Colby
  • Added FiberSpinningFinal.pdf
  • Updated License Show Changes
    License
    • https://creativecommons.org/licenses/by/4.0/
  • Published
  • Updated
  • Updated Keyword, Related URLs, Publication Date Show Changes
    Keyword
    • wet spinning, dry spinning, solvent evaporation, capillary breakup extensional rheometry, dripping on a substrate
    Related URLs
    • https://doi.org/10.1122/8.0000726
    Publication Date
    • 2023-11-01
    • 2023-11-02