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September 10, 2025LangmuirOpen Access

Effect of Surfactant Mixtures on the Evaporation Rate of Aqueous Sessile Droplets from Slightly Hydrophobic Substrates

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Authors

KKKristo KotsiSouth Thames CollegeTDTeng DongSouth Thames CollegeTKTakeshi KobayashiAmes National Laboratory

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Overview

This observational analysis reveals that surfactants reduce evaporation time in sessile droplets, suggesting new applications in technology and natural processes.

Key Points

  • Surfactants decreased the evaporation time compared to pure water droplets, indicating their significant impact on evaporation dynamics.
  • Critical micelle concentrations varied among surfactants, with notable effects on droplet evaporation observed at different mole ratios.
  • Observational analysis focused on droplet behavior on slightly hydrophobic glass substrates, exploring two modes of evaporation effects.
  • Implications highlight the complex relationship between surfactant concentration and evaporation, calling for further investigation into the underlying mechanisms.

Cite This Study

Kotsi et al. (2025) studied this question.

synapsesocial.com/papers/68c1955c9b7b07f3a06191a7https://doi.org/10.1021/acs.langmuir.5c03712
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