Liquid marbles from polymer particles: Formation mechanism, physical characterizations, and applications

Daisuke Matsukuma, Hirohmi Watanabe, Hui Wu, Shigesaburo Ogawa, Hiroshi Jinnai, Atsushi Takahara

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

A liquid marble is a small liquid droplet with a diameter of several mm, for which the surface is covered by hydrophobic nano- (or micro-) particles. This coverage by hydrophobic particles decreases the apparent surface tension of the liquid, and it allows the liquid to keep a spherical shape on any substrate. Liquid marbles shows many unique characteristics such as smooth movement on any substrate without any leakage of liquid. Many researchers have focused on the understanding of their unique physical properties as well as the demonstration of potential applications. Here we discuss the formation mechanism and physical characterization of this unique colloidal material. From the interpretation based on the surface chemistry and the direct observation using X-ray computed tomography, we shed light on the formation mechanism of liquid marbles, and the design of functional liquid marbles. Additionally, we introduce the wrapping of liquid droplet by using poly(lactic acid) particles, robust liquid marbles using inorganic nanotubes, and monolayer particle coating with monodisperse polymer particles.

Original languageEnglish
Pages (from-to)26-35
Number of pages10
JournalKOBUNSHI RONBUNSHU
Volume74
Issue number1
DOIs
Publication statusPublished - 2017 Jan

Keywords

  • Formation mechanism
  • Halloysite Nanotube
  • Hydrophobic polymer particle
  • Liquid marble
  • Monodisperse poly(methylsilsesquioxane) particle
  • Spreading coefficient
  • Surface energy

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Materials Science (miscellaneous)
  • Environmental Science(all)
  • Polymers and Plastics

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