Wetting and Coalescence of Drops of Self-Healing Agents on Electrospun Nanofiber Mats

Seongpil An; Yong Il Kim; Min Wook Lee; Alexander L. Yarin; Sam S. Yoon

doi:10.1021/acs.langmuir.7b02950

Wetting and Coalescence of Drops of Self-Healing Agents on Electrospun Nanofiber Mats

Seongpil An, Yong Il Kim, Min Wook Lee, Alexander L. Yarin, Sam S. Yoon

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

Here we study experimentally the behavior of liquid healing agents released in vascular core-shell nanofiber mats used in self-healing engineered materials. It is shown that wettability-driven spreading of liquid drops is accompanied by the imbibition into the nanofiber matrix, and its laws deviate from those known for spreading on an intact surface. We also explore coalescence of the released drops on nanofiber mats, in particular, coalescence of drops of resin monomer and cure important for self-healing. The coalescence process is also affected by the imbibition into the pores of an underlying nanofiber mat. A theoretical model is developed to account for the imbibition effect on drop coalescence.

Original language	English
Pages (from-to)	10663-10672
Number of pages	10
Journal	Langmuir
Volume	33
Issue number	40
DOIs	https://doi.org/10.1021/acs.langmuir.7b02950
Publication status	Published - 2017 Oct 10

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Surfaces and Interfaces
Spectroscopy
Electrochemistry

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10.1021/acs.langmuir.7b02950

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title = "Wetting and Coalescence of Drops of Self-Healing Agents on Electrospun Nanofiber Mats",

abstract = "Here we study experimentally the behavior of liquid healing agents released in vascular core-shell nanofiber mats used in self-healing engineered materials. It is shown that wettability-driven spreading of liquid drops is accompanied by the imbibition into the nanofiber matrix, and its laws deviate from those known for spreading on an intact surface. We also explore coalescence of the released drops on nanofiber mats, in particular, coalescence of drops of resin monomer and cure important for self-healing. The coalescence process is also affected by the imbibition into the pores of an underlying nanofiber mat. A theoretical model is developed to account for the imbibition effect on drop coalescence.",

author = "Seongpil An and Kim, {Yong Il} and Lee, {Min Wook} and Yarin, {Alexander L.} and Yoon, {Sam S.}",

note = "Funding Information: This work was supported by the International Collaboration Program funded by the Agency for Defense Development of the Republic of Korea and by the Technology Development Program to Solve Climate Changes of the National Research Foundation (NRF) funded by the Ministry of Science, ICT & Future Planning (NRF-2016M1A2A2936760), NRF-2013M3A6B1078879, and NRF-2017R1A2B4005639. This work was supported by Advanced Research Center Program (NRF-2013R1A5A1073861). Publisher Copyright: {\textcopyright} 2017 American Chemical Society.",

year = "2017",

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doi = "10.1021/acs.langmuir.7b02950",

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T1 - Wetting and Coalescence of Drops of Self-Healing Agents on Electrospun Nanofiber Mats

AU - An, Seongpil

AU - Kim, Yong Il

AU - Lee, Min Wook

AU - Yarin, Alexander L.

AU - Yoon, Sam S.

N1 - Funding Information: This work was supported by the International Collaboration Program funded by the Agency for Defense Development of the Republic of Korea and by the Technology Development Program to Solve Climate Changes of the National Research Foundation (NRF) funded by the Ministry of Science, ICT & Future Planning (NRF-2016M1A2A2936760), NRF-2013M3A6B1078879, and NRF-2017R1A2B4005639. This work was supported by Advanced Research Center Program (NRF-2013R1A5A1073861). Publisher Copyright: © 2017 American Chemical Society.

PY - 2017/10/10

Y1 - 2017/10/10

N2 - Here we study experimentally the behavior of liquid healing agents released in vascular core-shell nanofiber mats used in self-healing engineered materials. It is shown that wettability-driven spreading of liquid drops is accompanied by the imbibition into the nanofiber matrix, and its laws deviate from those known for spreading on an intact surface. We also explore coalescence of the released drops on nanofiber mats, in particular, coalescence of drops of resin monomer and cure important for self-healing. The coalescence process is also affected by the imbibition into the pores of an underlying nanofiber mat. A theoretical model is developed to account for the imbibition effect on drop coalescence.

AB - Here we study experimentally the behavior of liquid healing agents released in vascular core-shell nanofiber mats used in self-healing engineered materials. It is shown that wettability-driven spreading of liquid drops is accompanied by the imbibition into the nanofiber matrix, and its laws deviate from those known for spreading on an intact surface. We also explore coalescence of the released drops on nanofiber mats, in particular, coalescence of drops of resin monomer and cure important for self-healing. The coalescence process is also affected by the imbibition into the pores of an underlying nanofiber mat. A theoretical model is developed to account for the imbibition effect on drop coalescence.

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JO - Langmuir

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IS - 40

ER -

Wetting and Coalescence of Drops of Self-Healing Agents on Electrospun Nanofiber Mats

Abstract

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