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Khademsameni H, Jafari R, Allahdini A, Momen G. Regenerative Superhydrophobic Coatings for Enhanced Performance and Durability of High-Voltage Electrical Insulators in Cold Climates. MATERIALS (BASEL, SWITZERLAND) 2024; 17:1622. [PMID: 38612138 PMCID: PMC11012825 DOI: 10.3390/ma17071622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 03/26/2024] [Accepted: 03/27/2024] [Indexed: 04/14/2024]
Abstract
Superhydrophobic coatings can be a suitable solution for protecting vulnerable electrical infrastructures in regions with severe meteorological conditions. Regenerative superhydrophobicity, the ability to regain superhydrophobicity after being compromised or degraded, could address the issue of the low durability of these coatings. In this study, we fabricated a superhydrophobic coating comprising hydrophobic aerogel microparticles and polydimethylsiloxane (PDMS)-modified silica nanoparticles within a PDMS matrix containing trifluoropropyl POSS (F-POSS) and XIAMETER PMX-series silicone oil as superhydrophobicity-regenerating agents. The fabricated coating exhibited a static contact angle of 169.5° and a contact angle hysteresis of 6°. This coating was capable of regaining its superhydrophobicity after various pH immersion and plasma deterioration tests. The developed coating demonstrated ice adhesion as low as 71.2 kPa, which remained relatively unchanged even after several icing/de-icing cycles. Furthermore, the coating exhibited a higher flashover voltage than the reference samples and maintained a minimal drop in flashover voltage after consecutive testing cycles. Given this performance, this developed coating can be an ideal choice for enhancing the lifespan of electrical insulators.
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Affiliation(s)
| | - Reza Jafari
- Department of Applied Sciences, University of Quebec in Chicoutimi (UQAC), 555 Boul de l’Université, Chicoutimi, QC G7H 2B1, Canada; (H.K.); (A.A.); (G.M.)
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Mounayer N, Iline-Vul T, Margel S. Synthesis and Characterization of Durable Antifog Silane-Pyrrolidone Thin Coatings onto Polymeric Films. Molecules 2024; 29:958. [PMID: 38474470 DOI: 10.3390/molecules29050958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 02/16/2024] [Accepted: 02/21/2024] [Indexed: 03/14/2024] Open
Abstract
The fogging of transparent surfaces-condensation of water vapor in the air to a small liquid surface at specific environmental conditions-scatters incident light, creating a blurry vision. Fogging presents a significant challenge in various industries, adversely affecting numerous applications including plastic packaging, agricultural films, and various optical devices. Superhydrophobic or superhydrophilic coatings are the main strategies used to induce antifogging to minimize light scattering. Here, an innovative approach is introduced to mitigate fogging by modifying the surface properties of polymeric films, focusing on corona-treated polyethylene as a model. Coatings were prepared in two successive steps: the addition of radical co-polymerization of methacryloxypropyltriethoxysilane and N-vinylpyrrolidone followed by the step-growth Stöber polymerization of the formed silane monomer. The polymeric dispersion was spread on oxidized films via a Mayer rod and dried. Scanning and force microscopy, FIB, XPS, and UV-vis spectroscopy revealed a thin coating composed of cross-linked siloxane (Si-O-Si) covalently bonded to surface hydroxyls exposing pyrrolidone groups. Contact angle measurements, hot-fog examination, and durability tests indicated a durable antifogging activity.
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Affiliation(s)
- Natalie Mounayer
- Institute of Nanotechnology and Advanced Materials, Department of Chemistry, Bar-Ilan University, Ramat-Gan 5290002, Israel
| | - Taly Iline-Vul
- Institute of Nanotechnology and Advanced Materials, Department of Chemistry, Bar-Ilan University, Ramat-Gan 5290002, Israel
| | - Shlomo Margel
- Institute of Nanotechnology and Advanced Materials, Department of Chemistry, Bar-Ilan University, Ramat-Gan 5290002, Israel
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Kang L, Shi L, Song L, Guo X. Facile Fabrication of Superhydrophobic Porous Materials Using the Water-Based Aza-Michael Reaction for High-Efficiency Oil-Water Separation. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Ruidas S, Das A, Kumar S, Dalapati S, Manna U, Bhaumik A. Non‐Fluorinated and Robust Superhydrophobic Modification on Covalent Organic Framework for Crude‐Oil‐in‐Water Emulsion Separation. Angew Chem Int Ed Engl 2022; 61:e202210507. [DOI: 10.1002/anie.202210507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Santu Ruidas
- School of Materials Sciences Indian Association for the Cultivation of Science Jadavpur Kolkata 700032 India
| | - Avijit Das
- Department of Chemistry Indian Institute of Technology-Guwahati Kamrup Assam 781039 India
| | - Saurav Kumar
- Department of Chemistry Indian Institute of Technology-Guwahati Kamrup Assam 781039 India
| | - Sasanka Dalapati
- Department of Materials Science, School of Technology Central University of Tamil Nadu (CUTN) Thiruvarur 610005 Tamil Nadu India
| | - Uttam Manna
- Department of Chemistry Indian Institute of Technology-Guwahati Kamrup Assam 781039 India
- Centre for Nanotechnology Indian Institute of Technology-Guwahati Kamrup Assam 781039 India
| | - Asim Bhaumik
- School of Materials Sciences Indian Association for the Cultivation of Science Jadavpur Kolkata 700032 India
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Ruidas S, Das A, Kumar S, Dalapati S, Manna U, Bhaumik A. Non‐Fluorinated and Robust Superhydrophobic Modification on Covalent Organic Framework for Crude‐Oil‐in‐Water Emulsion Separation. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202210507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Santu Ruidas
- Indian Association for the Cultivation of Science School of Materials Sciences 2A & 2B Raja S C Mullick Road, Jadavpur 700032 Kolkata INDIA
| | - Avijit Das
- Indian Institute of Technology Guwahati Dapartment of Chemistry INDIA
| | - Saurav Kumar
- Indian Institute of Technology Guwahati Dapartment of Chemistry INDIA
| | - Sasanka Dalapati
- Central University of Tamil Nadu Department of Materials Science INDIA
| | - Uttam Manna
- Indian Institute of Technology Guwahati Dapartment of Chemistry INDIA
| | - Asim Bhaumik
- Indian Association for the Cultivation of Science Department of Materials Science 2A & B Raja S. C. Mullick RoadJadavpur 700032 Kolkata INDIA
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Shome A, Das A, Borbora A, Dhar M, Manna U. Role of chemistry in bio-inspired liquid wettability. Chem Soc Rev 2022; 51:5452-5497. [PMID: 35726911 DOI: 10.1039/d2cs00255h] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Chemistry and topography are the two distinct available tools for customizing different bio-inspired liquid wettability including superhydrophobicity, superamphiphobicity, underwater superoleophobicity, underwater superoleophilicity, and liquid infused slippery property. In nature, various living species possessing super and special liquid wettability inherently comprises of distinctly patterned surface topography decorated with low/high surface energy. Inspired from the topographically diverse natural species, the variation in surface topography has been the dominant approach for constructing bio-inspired antiwetting interfaces. However, recently, the modulation of chemistry has emerged as a facile route for the controlled tailoring of a wide range of bio-inspired liquid wettability. This review article aims to summarize the various reports published over the years that has elaborated the distinctive importance of both chemistry and topography in imparting and modulating various bio-inspired wettability. Moreover, this article outlines some obvious advantages of chemical modulation approach over topographical variation. For example, the strategic use of the chemical approach has allowed the facile, simultaneous, and independent tailoring of both liquid wettability and other relevant physical properties. We have also discussed the design of different antiwetting patterned and stimuli-responsive interfaces following the strategic and precise alteration of chemistry for various prospective applications.
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Affiliation(s)
- Arpita Shome
- Bio-Inspired Polymeric Materials Lab, Department of Chemistry, Indian Institute of Technology Guwahati, Kamrup, Assam-781039, India.
| | - Avijit Das
- Bio-Inspired Polymeric Materials Lab, Department of Chemistry, Indian Institute of Technology Guwahati, Kamrup, Assam-781039, India.
| | - Angana Borbora
- Bio-Inspired Polymeric Materials Lab, Department of Chemistry, Indian Institute of Technology Guwahati, Kamrup, Assam-781039, India.
| | - Manideepa Dhar
- Bio-Inspired Polymeric Materials Lab, Department of Chemistry, Indian Institute of Technology Guwahati, Kamrup, Assam-781039, India.
| | - Uttam Manna
- Bio-Inspired Polymeric Materials Lab, Department of Chemistry, Indian Institute of Technology Guwahati, Kamrup, Assam-781039, India. .,Centre for Nanotechnology, Indian Institute of Technology Guwahati, Kamrup, Assam-781039, India.,Jyoti and Bhupat Mehta School of Health Science and Technology, Indian Institute of Technology Guwahati, Kamrup, Assam-781039, India
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