Droplet impact onto textiles: Wetting, spreading, and lamella-controlled splashing
Satin weaves promoted Cassie-Baxter wetting with high advancing and static contact angles (θ<sub>max</sub>≈130 and θ<sub>static</sub>>115 degrees), while plain weaves favored Wenzel wetting (θ<sub>max</sub>≈121 and θ<sub>static</sub><100 degrees). Splashing thresholds for water decreased linearly with root-mean-square roughness (R<sub>rms</sub>), but viscous fluids (e.g., silicone oil) showed roughness-insensitive splashing. Directional splashing emerged in satin weaves due to warp-aligned floats. An Ohnesorge-number-based scaling model unified critical splashing velocities across all textiles and fluids. These findings inform the design of performance textiles for forensics, medical coatings, and waterproofing applications.
Authors
- Alfonso Arturo Castrejón-Pita (ORCID: https://orcid.org/0000-0003-4995-2582)
- J. R. Castrejón-Pita (ORCID: https://orcid.org/0000-0001-8306-2095)
- Muhammad Ibrahim Iqbal
- Miguel A. Quetzeri-Santiago (ORCID: https://orcid.org/0000-0003-3324-6800)
Institutions
- University of Oxford (GB)
- University College London (GB)
- Universidad Nacional Autónoma de México (MX)
Publication Details
- Journal
- Journal of Colloid and Interface Science
- Published
- 2025-11-06
- DOI
- https://doi.org/10.1016/j.jcis.2025.139385
- Citations
- 2
- Primary Topic
- Fluid Dynamics and Heat Transfer
- Type
- article
- Field-Weighted Citation Impact
- 2.67