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Wetting morphologies on randomly oriented fibers.

Alban Sauret1, François Boulogne2, Beatrice Soh2

  • 1Surface du Verre et Interfaces, UMR 125, 93303, Aubervilliers, France. alban.sauret@saint-gobain.com.

The European Physical Journal. E, Soft Matter
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Summary
This summary is machine-generated.

Liquid behavior on fibers was studied. Three distinct liquid morphologies (column, mixed, drop) were identified based on fiber orientation, spacing, and liquid volume, aiding fibrous network understanding.

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Area of Science:

  • Fluid dynamics
  • Materials science
  • Surface science

Background:

  • Understanding liquid behavior on fibrous materials is crucial for applications like filtration and textiles.
  • Previous models focused on parallel or touching crossed fibers, limiting broader applicability.
  • Fibrous networks are ubiquitous in nature and engineered materials.

Purpose of the Study:

  • To characterize liquid drop morphologies on two randomly oriented fibers.
  • To extend existing models to arbitrary fiber orientations.
  • To provide a predictive model for liquid configurations on fiber intersections.

Main Methods:

  • Review of prior modeling for parallel and touching crossed fibers.
  • Extension of models to incorporate arbitrary fiber orientation using tilting angle and minimum spacing.
  • Development of an analytical model to predict equilibrium liquid configurations.

Main Results:

  • Identified three distinct equilibrium liquid morphologies: column, mixed, and single drop.
  • Demonstrated that morphology depends on liquid volume, fiber spacing, and fiber angle.
  • The analytical model successfully captures these observed morphologies.

Conclusions:

  • Liquid morphology on intersecting fibers is highly dependent on geometric parameters and liquid volume.
  • The developed model offers a generalized approach to predict liquid behavior on fibrous networks.
  • This work provides a foundational understanding for liquid interactions within complex fibrous structures.