Nonporous, Strong, Stretchable, and Transparent Electrospun Aromatic Polyurea Nanocomposites as Potential Anticorrosion Coating Films

This study, for the first time, focused on the fabrication of nonporous polyurea thin films (~200 microns) using the electrospinning method as a novel approach for coating applications. Multi-walled carbon nanotubes (MWCNTs) and hydrophilic-fumed nanosilica (HFNS) were added separately into electros...

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Autores principales: Sheik Ambarine Banon Auckloo, Khanisya Palaniandy, Yew Mun Hung, Giuseppe Lazzara, Siang-Piao Chai, Pooria Pasbakhsh
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Publicado: MDPI AG 2021
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spelling oai:doaj.org-article:353af2f1d98f4e3789f48da9875bab992021-11-25T18:31:32ZNonporous, Strong, Stretchable, and Transparent Electrospun Aromatic Polyurea Nanocomposites as Potential Anticorrosion Coating Films10.3390/nano111129982079-4991https://doaj.org/article/353af2f1d98f4e3789f48da9875bab992021-11-01T00:00:00Zhttps://www.mdpi.com/2079-4991/11/11/2998https://doaj.org/toc/2079-4991This study, for the first time, focused on the fabrication of nonporous polyurea thin films (~200 microns) using the electrospinning method as a novel approach for coating applications. Multi-walled carbon nanotubes (MWCNTs) and hydrophilic-fumed nanosilica (HFNS) were added separately into electrospun polyurea films as nano-reinforcing fillers for the enhancement of properties. Neat polyurea films demonstrated a tensile strength of 14 MPa with an elongation of 360%. At a loading of 0.2% of MWCNTs, the highest tensile strength of 21 MPa and elongation of 402% were obtained, while the water contact angle remained almost unchanged (89°). Surface morphology analysis indicated that the production of polyurea fibers during electrospinning bonded together upon curing, leading to a nonporous film. Neat polyurea exhibited high thermal resistance with a degradation temperature of 380 °C. Upon reinforcement with 0.2% of MWCNTs and 0.4% of HFNS, it increased by ~7 °C. The storage modulus increased by 42 MPa with the addition of 0.2% of MWCNTs, implying a superior viscoelasticity of polyurea nanocomposite films. The results were benchmarked with anti-corrosive polymer coatings from the literature, revealing that the production of nonporous polyurea coatings with robust strength, elasticity, and thermal properties was achieved. Electrospun polyurea coatings are promising candidates as flexible anti-corrosive coatings for heat exchanges and electrical wires.Sheik Ambarine Banon AucklooKhanisya PalaniandyYew Mun HungGiuseppe LazzaraSiang-Piao ChaiPooria PasbakhshMDPI AGarticlepolyureananocompositesthin filmcoatingselectrospinningdepositionChemistryQD1-999ENNanomaterials, Vol 11, Iss 2998, p 2998 (2021)
institution DOAJ
collection DOAJ
language EN
topic polyurea
nanocomposites
thin film
coatings
electrospinning
deposition
Chemistry
QD1-999
spellingShingle polyurea
nanocomposites
thin film
coatings
electrospinning
deposition
Chemistry
QD1-999
Sheik Ambarine Banon Auckloo
Khanisya Palaniandy
Yew Mun Hung
Giuseppe Lazzara
Siang-Piao Chai
Pooria Pasbakhsh
Nonporous, Strong, Stretchable, and Transparent Electrospun Aromatic Polyurea Nanocomposites as Potential Anticorrosion Coating Films
description This study, for the first time, focused on the fabrication of nonporous polyurea thin films (~200 microns) using the electrospinning method as a novel approach for coating applications. Multi-walled carbon nanotubes (MWCNTs) and hydrophilic-fumed nanosilica (HFNS) were added separately into electrospun polyurea films as nano-reinforcing fillers for the enhancement of properties. Neat polyurea films demonstrated a tensile strength of 14 MPa with an elongation of 360%. At a loading of 0.2% of MWCNTs, the highest tensile strength of 21 MPa and elongation of 402% were obtained, while the water contact angle remained almost unchanged (89°). Surface morphology analysis indicated that the production of polyurea fibers during electrospinning bonded together upon curing, leading to a nonporous film. Neat polyurea exhibited high thermal resistance with a degradation temperature of 380 °C. Upon reinforcement with 0.2% of MWCNTs and 0.4% of HFNS, it increased by ~7 °C. The storage modulus increased by 42 MPa with the addition of 0.2% of MWCNTs, implying a superior viscoelasticity of polyurea nanocomposite films. The results were benchmarked with anti-corrosive polymer coatings from the literature, revealing that the production of nonporous polyurea coatings with robust strength, elasticity, and thermal properties was achieved. Electrospun polyurea coatings are promising candidates as flexible anti-corrosive coatings for heat exchanges and electrical wires.
format article
author Sheik Ambarine Banon Auckloo
Khanisya Palaniandy
Yew Mun Hung
Giuseppe Lazzara
Siang-Piao Chai
Pooria Pasbakhsh
author_facet Sheik Ambarine Banon Auckloo
Khanisya Palaniandy
Yew Mun Hung
Giuseppe Lazzara
Siang-Piao Chai
Pooria Pasbakhsh
author_sort Sheik Ambarine Banon Auckloo
title Nonporous, Strong, Stretchable, and Transparent Electrospun Aromatic Polyurea Nanocomposites as Potential Anticorrosion Coating Films
title_short Nonporous, Strong, Stretchable, and Transparent Electrospun Aromatic Polyurea Nanocomposites as Potential Anticorrosion Coating Films
title_full Nonporous, Strong, Stretchable, and Transparent Electrospun Aromatic Polyurea Nanocomposites as Potential Anticorrosion Coating Films
title_fullStr Nonporous, Strong, Stretchable, and Transparent Electrospun Aromatic Polyurea Nanocomposites as Potential Anticorrosion Coating Films
title_full_unstemmed Nonporous, Strong, Stretchable, and Transparent Electrospun Aromatic Polyurea Nanocomposites as Potential Anticorrosion Coating Films
title_sort nonporous, strong, stretchable, and transparent electrospun aromatic polyurea nanocomposites as potential anticorrosion coating films
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/353af2f1d98f4e3789f48da9875bab99
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