Study of Supercooled Water Drop Impact on Icephobic Gradient Polymer Coatings
Abstract Supercooled liquid water drops, with temperatures below freezing point, are common in high‐altitude clouds. These drops, despite being in a metastable state, can remain liquid for extended periods if temperatures are above the homogeneous nucleation point. Impact of such liquid drops with a...
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2025-04-01
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| Series: | Advanced Materials Interfaces |
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| Online Access: | https://doi.org/10.1002/admi.202400723 |
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| author | Gabriel Hernández Rodríguez Mingyue Ding Ilia V. Roisman Jeanette Hussong Anna Maria Coclite |
| author_facet | Gabriel Hernández Rodríguez Mingyue Ding Ilia V. Roisman Jeanette Hussong Anna Maria Coclite |
| author_sort | Gabriel Hernández Rodríguez |
| collection | DOAJ |
| description | Abstract Supercooled liquid water drops, with temperatures below freezing point, are common in high‐altitude clouds. These drops, despite being in a metastable state, can remain liquid for extended periods if temperatures are above the homogeneous nucleation point. Impact of such liquid drops with a cold solid surface is one of the reasons for ice accretion, which in many cases can represent a safety hazard. The study of supercooled drop impact dynamics is key to developing materials that provide resistance against the formation and accumulation of ice. In this work, the impact of supercooled water drops on dry icephobic coatings based on gradient polymers deposited via initiated chemical vapor deposition (iCVD) under several conditions is analyzed. Experimental results show that coated surfaces potentially decrease the freezing probability upon impact. The gradient polymer surfaces with higher roughness and lower wettability do not increase the freezing probability upon impact but result in rebound and eventual roll off the surface, indicating that surface hydrophobic properties prevailed over the impact. The findings demonstrate the remarkable efficacy of gradient polymer coatings in inhibiting drop freezing, even under high wind velocities, and provide insights for the design of durable and effective anti‐icing coatings across diverse applications. |
| format | Article |
| id | doaj-art-6b0fa6ba64e946119ae1c2e91ae31c80 |
| institution | DOAJ |
| issn | 2196-7350 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Advanced Materials Interfaces |
| spelling | doaj-art-6b0fa6ba64e946119ae1c2e91ae31c802025-08-20T03:17:55ZengWiley-VCHAdvanced Materials Interfaces2196-73502025-04-01127n/an/a10.1002/admi.202400723Study of Supercooled Water Drop Impact on Icephobic Gradient Polymer CoatingsGabriel Hernández Rodríguez0Mingyue Ding1Ilia V. Roisman2Jeanette Hussong3Anna Maria Coclite4Institute of Solid State Physics NAWI Graz Graz University of Technology Graz 8010 AustriaInstitute for Fluid Mechanics and Aerodynamics Technical University of Darmstadt Peter‐Grünberg‐Straße 10 64287 Darmstadt GermanyInstitute for Fluid Mechanics and Aerodynamics Technical University of Darmstadt Peter‐Grünberg‐Straße 10 64287 Darmstadt GermanyInstitute for Fluid Mechanics and Aerodynamics Technical University of Darmstadt Peter‐Grünberg‐Straße 10 64287 Darmstadt GermanyInstitute of Solid State Physics NAWI Graz Graz University of Technology Graz 8010 AustriaAbstract Supercooled liquid water drops, with temperatures below freezing point, are common in high‐altitude clouds. These drops, despite being in a metastable state, can remain liquid for extended periods if temperatures are above the homogeneous nucleation point. Impact of such liquid drops with a cold solid surface is one of the reasons for ice accretion, which in many cases can represent a safety hazard. The study of supercooled drop impact dynamics is key to developing materials that provide resistance against the formation and accumulation of ice. In this work, the impact of supercooled water drops on dry icephobic coatings based on gradient polymers deposited via initiated chemical vapor deposition (iCVD) under several conditions is analyzed. Experimental results show that coated surfaces potentially decrease the freezing probability upon impact. The gradient polymer surfaces with higher roughness and lower wettability do not increase the freezing probability upon impact but result in rebound and eventual roll off the surface, indicating that surface hydrophobic properties prevailed over the impact. The findings demonstrate the remarkable efficacy of gradient polymer coatings in inhibiting drop freezing, even under high wind velocities, and provide insights for the design of durable and effective anti‐icing coatings across diverse applications.https://doi.org/10.1002/admi.202400723anti‐icing coatinggradient polymer coatingicephobicimapct freezingnucleationsupercooled water drop |
| spellingShingle | Gabriel Hernández Rodríguez Mingyue Ding Ilia V. Roisman Jeanette Hussong Anna Maria Coclite Study of Supercooled Water Drop Impact on Icephobic Gradient Polymer Coatings Advanced Materials Interfaces anti‐icing coating gradient polymer coating icephobic imapct freezing nucleation supercooled water drop |
| title | Study of Supercooled Water Drop Impact on Icephobic Gradient Polymer Coatings |
| title_full | Study of Supercooled Water Drop Impact on Icephobic Gradient Polymer Coatings |
| title_fullStr | Study of Supercooled Water Drop Impact on Icephobic Gradient Polymer Coatings |
| title_full_unstemmed | Study of Supercooled Water Drop Impact on Icephobic Gradient Polymer Coatings |
| title_short | Study of Supercooled Water Drop Impact on Icephobic Gradient Polymer Coatings |
| title_sort | study of supercooled water drop impact on icephobic gradient polymer coatings |
| topic | anti‐icing coating gradient polymer coating icephobic imapct freezing nucleation supercooled water drop |
| url | https://doi.org/10.1002/admi.202400723 |
| work_keys_str_mv | AT gabrielhernandezrodriguez studyofsupercooledwaterdropimpactonicephobicgradientpolymercoatings AT mingyueding studyofsupercooledwaterdropimpactonicephobicgradientpolymercoatings AT iliavroisman studyofsupercooledwaterdropimpactonicephobicgradientpolymercoatings AT jeanettehussong studyofsupercooledwaterdropimpactonicephobicgradientpolymercoatings AT annamariacoclite studyofsupercooledwaterdropimpactonicephobicgradientpolymercoatings |