Wetting behaviour of mixed surfactants on the mild steel surface

Interfacial phenomena such as wetting can be enhanced to a greater extent and mixed surfactant systems are promising candidates for the improvement of wettability of hydrophobic surfaces. In this study, the investigation sought to examine the surface-wetting characteristics of mild steel utilizing a...

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Main Authors: Yadav Chandradip Kumar, Subedi Vivek, Mukherjee Monami, Khadka Sita, Karn Anoop, Niraula Tulasi Prasad, Yadav Amar Prasad, Bhattarai Jagadeesh, Bhattarai Ajaya
Format: Article
Language:English
Published: EDP Sciences 2025-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/10/e3sconf_ri2c2025_04003.pdf
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author Yadav Chandradip Kumar
Subedi Vivek
Mukherjee Monami
Khadka Sita
Karn Anoop
Niraula Tulasi Prasad
Yadav Amar Prasad
Bhattarai Jagadeesh
Bhattarai Ajaya
author_facet Yadav Chandradip Kumar
Subedi Vivek
Mukherjee Monami
Khadka Sita
Karn Anoop
Niraula Tulasi Prasad
Yadav Amar Prasad
Bhattarai Jagadeesh
Bhattarai Ajaya
author_sort Yadav Chandradip Kumar
collection DOAJ
description Interfacial phenomena such as wetting can be enhanced to a greater extent and mixed surfactant systems are promising candidates for the improvement of wettability of hydrophobic surfaces. In this study, the investigation sought to examine the surface-wetting characteristics of mild steel utilizing a blend of the cationic surfactant cetylpyridinium chloride (CPC) and the anionic surfactant sodium dodecyl sulfate (SDS). The wetting behaviour of mild steel surface is quantified in terms of contact angle corresponding to H2SO4, mixed surfactant acid solutions, and methanol for three hours. The contact angles of 0.0008 M, 0.0017 M, and 0.00034 M of mixed surfactant on polished mild steel solution were found to be 38.62°, 39.73°, and 48.50° respectively. The contact angle increases proportionally with the concentration of mixed surfactant in the solution, leading to a visible increase in its hydrophilic nature. On polished mild steel, contact angles of 0%, 10%, 20%, and 30% methanol were measured at 98.21°, 100.39°, 105.29°, and 109.37°, respectively. It shows that the hydrophobic nature increased with an increase in concentration of methanol resulting in less interaction between metal substrate and corrosive species.
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institution Kabale University
issn 2267-1242
language English
publishDate 2025-01-01
publisher EDP Sciences
record_format Article
series E3S Web of Conferences
spelling doaj-art-d802a88c55e54940bd623f600fb695422025-02-05T10:50:20ZengEDP SciencesE3S Web of Conferences2267-12422025-01-016100400310.1051/e3sconf/202561004003e3sconf_ri2c2025_04003Wetting behaviour of mixed surfactants on the mild steel surfaceYadav Chandradip Kumar0Subedi Vivek1Mukherjee Monami2Khadka Sita3Karn Anoop4Niraula Tulasi Prasad5Yadav Amar Prasad6Bhattarai Jagadeesh7Bhattarai Ajaya8Central Department of Chemistry, Tribhuvan UniversityCentral Department of Chemistry, Tribhuvan UniversityCouncil of Science Industrial Research, IMMTCentral Department of Chemistry, Tribhuvan UniversityCentral Department of Chemistry, Tribhuvan UniversityMahendra Morang Adarsh Multiple Campus, Tribhuvan UniversityCentral Department of Chemistry, Tribhuvan UniversityCentral Department of Chemistry, Tribhuvan UniversityMahendra Morang Adarsh Multiple Campus, Tribhuvan UniversityInterfacial phenomena such as wetting can be enhanced to a greater extent and mixed surfactant systems are promising candidates for the improvement of wettability of hydrophobic surfaces. In this study, the investigation sought to examine the surface-wetting characteristics of mild steel utilizing a blend of the cationic surfactant cetylpyridinium chloride (CPC) and the anionic surfactant sodium dodecyl sulfate (SDS). The wetting behaviour of mild steel surface is quantified in terms of contact angle corresponding to H2SO4, mixed surfactant acid solutions, and methanol for three hours. The contact angles of 0.0008 M, 0.0017 M, and 0.00034 M of mixed surfactant on polished mild steel solution were found to be 38.62°, 39.73°, and 48.50° respectively. The contact angle increases proportionally with the concentration of mixed surfactant in the solution, leading to a visible increase in its hydrophilic nature. On polished mild steel, contact angles of 0%, 10%, 20%, and 30% methanol were measured at 98.21°, 100.39°, 105.29°, and 109.37°, respectively. It shows that the hydrophobic nature increased with an increase in concentration of methanol resulting in less interaction between metal substrate and corrosive species.https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/10/e3sconf_ri2c2025_04003.pdf
spellingShingle Yadav Chandradip Kumar
Subedi Vivek
Mukherjee Monami
Khadka Sita
Karn Anoop
Niraula Tulasi Prasad
Yadav Amar Prasad
Bhattarai Jagadeesh
Bhattarai Ajaya
Wetting behaviour of mixed surfactants on the mild steel surface
E3S Web of Conferences
title Wetting behaviour of mixed surfactants on the mild steel surface
title_full Wetting behaviour of mixed surfactants on the mild steel surface
title_fullStr Wetting behaviour of mixed surfactants on the mild steel surface
title_full_unstemmed Wetting behaviour of mixed surfactants on the mild steel surface
title_short Wetting behaviour of mixed surfactants on the mild steel surface
title_sort wetting behaviour of mixed surfactants on the mild steel surface
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/10/e3sconf_ri2c2025_04003.pdf
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