Three-dimensional electrospun micropatterned cellulose acetate nanofiber surfaces with tunable wettability

M Kakunuri; ND Wanasekara; CS Sharma; M Khandelwal; SJ Eichhorn

doi:10.1002/app.44709

Three-dimensional electrospun micropatterned cellulose acetate nanofiber surfaces with tunable wettability

M Kakunuri, ND Wanasekara, CS Sharma, M Khandelwal, SJ Eichhorn

Department of Aerospace Engineering

Research output: Contribution to journal › Article (Academic Journal) › peer-review

20 Citations (Scopus)

Abstract

© 2017 Wiley Periodicals, Inc. Three-dimensional polymer nanofibrous mats with tunable wettability have been fabricated using a single step non-conductive template assisted electrospinning process. Cellulose acetate nanofibers are electrospun over a nylon mesh, which acts as the template. The as-deposited fiber mat is removed from this template to produce a free standing three-dimensional micropatterned nanofibrous mat. By simply varying the template mesh dimensions, the fraction of the air-liquid interface can be changed which allows control of the wetting mechanics. It is shown that the water contact angle can be varied from about 30° for a planar network to about 140° for a patterned mat implying a complete transition from hydrophilic to hydrophobic behavior. Furthermore, upon stretching the fiber mat loses its pattern irreversibly and reducing the contact angle from 140° to 110° with increasing stretching. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44709.

Original language	Undefined/Unknown
Journal	Journal of Applied Polymer Science
Volume	134
DOIs	https://doi.org/10.1002/app.44709
Publication status	Published - 1 Apr 2017

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title = "Three-dimensional electrospun micropatterned cellulose acetate nanofiber surfaces with tunable wettability",

abstract = "{\textcopyright} 2017 Wiley Periodicals, Inc. Three-dimensional polymer nanofibrous mats with tunable wettability have been fabricated using a single step non-conductive template assisted electrospinning process. Cellulose acetate nanofibers are electrospun over a nylon mesh, which acts as the template. The as-deposited fiber mat is removed from this template to produce a free standing three-dimensional micropatterned nanofibrous mat. By simply varying the template mesh dimensions, the fraction of the air-liquid interface can be changed which allows control of the wetting mechanics. It is shown that the water contact angle can be varied from about 30° for a planar network to about 140° for a patterned mat implying a complete transition from hydrophilic to hydrophobic behavior. Furthermore, upon stretching the fiber mat loses its pattern irreversibly and reducing the contact angle from 140° to 110° with increasing stretching. {\textcopyright} 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44709.",

author = "M Kakunuri and ND Wanasekara and CS Sharma and M Khandelwal and SJ Eichhorn",

year = "2017",

month = apr,

day = "1",

doi = "10.1002/app.44709",

language = "Undefined/Unknown",

volume = "134",

journal = "Journal of Applied Polymer Science",

issn = "0021-8995",

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TY - JOUR

T1 - Three-dimensional electrospun micropatterned cellulose acetate nanofiber surfaces with tunable wettability

AU - Kakunuri, M

AU - Wanasekara, ND

AU - Sharma, CS

AU - Khandelwal, M

AU - Eichhorn, SJ

PY - 2017/4/1

Y1 - 2017/4/1

N2 - © 2017 Wiley Periodicals, Inc. Three-dimensional polymer nanofibrous mats with tunable wettability have been fabricated using a single step non-conductive template assisted electrospinning process. Cellulose acetate nanofibers are electrospun over a nylon mesh, which acts as the template. The as-deposited fiber mat is removed from this template to produce a free standing three-dimensional micropatterned nanofibrous mat. By simply varying the template mesh dimensions, the fraction of the air-liquid interface can be changed which allows control of the wetting mechanics. It is shown that the water contact angle can be varied from about 30° for a planar network to about 140° for a patterned mat implying a complete transition from hydrophilic to hydrophobic behavior. Furthermore, upon stretching the fiber mat loses its pattern irreversibly and reducing the contact angle from 140° to 110° with increasing stretching. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44709.

AB - © 2017 Wiley Periodicals, Inc. Three-dimensional polymer nanofibrous mats with tunable wettability have been fabricated using a single step non-conductive template assisted electrospinning process. Cellulose acetate nanofibers are electrospun over a nylon mesh, which acts as the template. The as-deposited fiber mat is removed from this template to produce a free standing three-dimensional micropatterned nanofibrous mat. By simply varying the template mesh dimensions, the fraction of the air-liquid interface can be changed which allows control of the wetting mechanics. It is shown that the water contact angle can be varied from about 30° for a planar network to about 140° for a patterned mat implying a complete transition from hydrophilic to hydrophobic behavior. Furthermore, upon stretching the fiber mat loses its pattern irreversibly and reducing the contact angle from 140° to 110° with increasing stretching. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44709.

U2 - 10.1002/app.44709

DO - 10.1002/app.44709

M3 - Article (Academic Journal)

SN - 0021-8995

VL - 134

JO - Journal of Applied Polymer Science

JF - Journal of Applied Polymer Science

ER -