Tunable Wettability of Biodegradable Multilayer Sandwich-Structured Electrospun Nanofibrous Membranes

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Date
2020-09-15
Authors
Ewaldz, Elena
Qu, Wangda
Bai, Xianglan
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MDPI
Authors
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Alam, A K M Mashud
Postdoc Research Associate
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Xiang, Chunhui
Associate Professor
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Apparel, Events and Hospitality Management

The Department of Apparel, Education Studies, and Hospitality Management provides an interdisciplinary look into areas of aesthetics, leadership, event planning, entrepreneurship, and multi-channel retailing. It consists of four majors: Apparel, Merchandising, and Design; Event Management; Family and Consumer Education and Studies; and Hospitality Management.

History
The Department of Apparel, Education Studies, and Hospitality Management was founded in 2001 from the merging of the Department of Family and Consumer Sciences Education and Studies; the Department of Textiles and Clothing, and the Department of Hotel, Restaurant and Institutional Management.

Dates of Existence
2001 - present

Related Units

  • College of Human Sciences (parent college)
  • Department of Family and Consumer Sciences Education and Studies (predecessor)
  • Department of Hotel, Restaurant, and Institutional Management (predecessor)
  • Department of Textiles and Clothing (predecessor)
  • Trend Magazine (student organization)

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Abstract
This research aims to develop multilayer sandwich-structured electrospun nanofiber (ENF) membranes using biodegradable polymers. Hydrophilic regenerated cellulose (RC) and hydrophobic poly (lactic acid) (PLA)-based novel multilayer sandwich-structures were created by electrospinning on various copper collectors, including copper foil and 30-mesh copper gauzes, to modify the surface roughness for tunable wettability. Different collectors yielded various sizes and morphologies of the fabricated ENFs with different levels of surface roughness. Bead-free thicker fibers were collected on foil collectors. The surface roughness of the fine fibers collected on mesh collectors contributed to an increase in hydrophobicity. An RC-based triple-layered structure showed a contact angle of 48.2°, which is comparable to the contact angle of the single-layer cellulosic fabrics (47.0°). The polar shift of RC membranes on the wetting envelope is indicative of the possibility of tuning the wetting behavior by creating multilayer structures. Wettability can be tuned by creating multilayer sandwich structures consisting of RC and PLA. This study provides an important insight into the manipulation of the wetting behavior of polymeric ENFs in multilayer structures for applications including chemical protective clothing.
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This article is published as Alam, A.K.M.M.; Ewaldz, E.; Xiang, C.; Qu, W.; Bai, X. Tunable Wettability of Biodegradable Multilayer Sandwich-Structured Electrospun Nanofibrous Membranes. Polymers 2020, 12, 2092. https://doi.org/10.3390/polym12092092. Posted with permission.
© 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
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