Refinement of solid layers via wetting on homogeneous lyophilic surfaces

Jun Fukai, Kei Sakanoue, Yuuki Irihama, Kento Ando, Rintaro Yamashita, Shouma Nakagawa

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Surface control additives (SCAs), or surfactants, can obstruct the wetting of liquid films on lyophilic surfaces even though they lower surface tension. In this work, this unusual behavior was used to decrease the widths of printed organic and nanoparticle lines on different homogeneous surfaces. A decrease in line width accompanied a change in its cross section. The ability of a SCA to decrease the line width was correlated with contact angle but not the surface tension of the solution. Line refinement was consequently attributed to an increase in contact angle. Because there were no reports that surfactants increased contact angles, the mechanisms to increase contact angle were discussed in static and dynamic terms. First, Owens and Wendt’s theory revealed that contact angle changes depended on SCA-induced modification of polar and dispersive interfacial components. However, a definitive increase in contact angle could not be deduced from this theory alone. Second, the effect of solutal Marangoni forces induced by the SCAs on contact angle was discussed by considering the wetting behaviors of binary solvents. SCA concentration dependence of surface tension at higher than the initial SCA concentration correlated well with the ability of the SCA to decrease line width.

Original languageEnglish
Pages (from-to)631-640
Number of pages10
JournalJournal of Coatings Technology and Research
Volume14
Issue number3
DOIs
Publication statusPublished - May 1 2017

Fingerprint

control surfaces
Control surfaces
wetting
Contact angle
Wetting
Linewidth
Surface tension
interfacial tension
Surface-Active Agents
Surface active agents
surfactants
Liquid films
Nanoparticles
nanoparticles
cross sections
liquids

All Science Journal Classification (ASJC) codes

  • Colloid and Surface Chemistry
  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

Cite this

Refinement of solid layers via wetting on homogeneous lyophilic surfaces. / Fukai, Jun; Sakanoue, Kei; Irihama, Yuuki; Ando, Kento; Yamashita, Rintaro; Nakagawa, Shouma.

In: Journal of Coatings Technology and Research, Vol. 14, No. 3, 01.05.2017, p. 631-640.

Research output: Contribution to journalArticle

Fukai, Jun ; Sakanoue, Kei ; Irihama, Yuuki ; Ando, Kento ; Yamashita, Rintaro ; Nakagawa, Shouma. / Refinement of solid layers via wetting on homogeneous lyophilic surfaces. In: Journal of Coatings Technology and Research. 2017 ; Vol. 14, No. 3. pp. 631-640.
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