Bio-inspired surface modification of aluminium heat exchanger fins using laser structuring and PDMS coating for improved and scalable hydrophobic and ice-adhesion performance.
Saved in:
| Title: | Bio-inspired surface modification of aluminium heat exchanger fins using laser structuring and PDMS coating for improved and scalable hydrophobic and ice-adhesion performance. |
|---|---|
| Authors: | Li, Chenglin1 (AUTHOR) chenglin.li@tu-dresden.de, Apelt, Sabine1 (AUTHOR), Feuer, Anne2 (AUTHOR), Idrisov, Ravil2 (AUTHOR), Bergmann, Ute1 (AUTHOR) |
| Source: | Journal of Adhesion. 2025, Vol. 101 Issue 16, p1906-1921. 16p. |
| Subjects: | Heat pump efficiency, Polydimethylsiloxane, Biomimetics, Heat exchangers, Surface preparation, Laser ablation, Hydrophobic interactions |
| Abstract: | With the rapid increase in heat pump installations, the issue of icing on aluminium fins in ASHP has become significant. Ice formation reduces heat exchanger efficiency, leading to higher energy consumption and maintenance costs. To address these issues, we propose the use of DLIP to create bio-inspired structures on aluminium surfaces, followed by applying PDMS via dip-coating to further enhance the hydrophobic and anti-icing properties. The untreated and treated samples were tested for ice adhesion, dynamic and static contact angles before and after ice adhesion, and PDMS coating on the sample surface was observed with sem. DLIP treated surfaces showed significantly increased static contact angles, while the subsequent PDMS coating further reduced ice adhesion. SEM characterization revealed the line-like surface structures inspired by scallop shells with a periodic distance of 18 µm inspired by lotus leaves. The modified surfaces significantly increased the hydrophobicity compared to non-structured Al surfaces for about 40° while maintaining the low ice adhesion strength of 400 kPa, suggesting potential applications for optimizing heat pump efficiency. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Adhesion is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
|---|---|
| Header | DbId: egs DbLabel: Engineering Source An: 189062374 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: Bio-inspired surface modification of aluminium heat exchanger fins using laser structuring and PDMS coating for improved and scalable hydrophobic and ice-adhesion performance. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Li%2C+Chenglin%22">Li, Chenglin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> chenglin.li@tu-dresden.de</i><br /><searchLink fieldCode="AR" term="%22Apelt%2C+Sabine%22">Apelt, Sabine</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Feuer%2C+Anne%22">Feuer, Anne</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Idrisov%2C+Ravil%22">Idrisov, Ravil</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bergmann%2C+Ute%22">Bergmann, Ute</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Adhesion%22">Journal of Adhesion</searchLink>. 2025, Vol. 101 Issue 16, p1906-1921. 16p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Heat+pump+efficiency%22">Heat pump efficiency</searchLink><br /><searchLink fieldCode="DE" term="%22Polydimethylsiloxane%22">Polydimethylsiloxane</searchLink><br /><searchLink fieldCode="DE" term="%22Biomimetics%22">Biomimetics</searchLink><br /><searchLink fieldCode="DE" term="%22Heat+exchangers%22">Heat exchangers</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+preparation%22">Surface preparation</searchLink><br /><searchLink fieldCode="DE" term="%22Laser+ablation%22">Laser ablation</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrophobic+interactions%22">Hydrophobic interactions</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: With the rapid increase in heat pump installations, the issue of icing on aluminium fins in ASHP has become significant. Ice formation reduces heat exchanger efficiency, leading to higher energy consumption and maintenance costs. To address these issues, we propose the use of DLIP to create bio-inspired structures on aluminium surfaces, followed by applying PDMS via dip-coating to further enhance the hydrophobic and anti-icing properties. The untreated and treated samples were tested for ice adhesion, dynamic and static contact angles before and after ice adhesion, and PDMS coating on the sample surface was observed with sem. DLIP treated surfaces showed significantly increased static contact angles, while the subsequent PDMS coating further reduced ice adhesion. SEM characterization revealed the line-like surface structures inspired by scallop shells with a periodic distance of 18 µm inspired by lotus leaves. The modified surfaces significantly increased the hydrophobicity compared to non-structured Al surfaces for about 40° while maintaining the low ice adhesion strength of 400 kPa, suggesting potential applications for optimizing heat pump efficiency. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Adhesion is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=189062374 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1080/00218464.2025.2511330 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 16 StartPage: 1906 Subjects: – SubjectFull: Heat pump efficiency Type: general – SubjectFull: Polydimethylsiloxane Type: general – SubjectFull: Biomimetics Type: general – SubjectFull: Heat exchangers Type: general – SubjectFull: Surface preparation Type: general – SubjectFull: Laser ablation Type: general – SubjectFull: Hydrophobic interactions Type: general Titles: – TitleFull: Bio-inspired surface modification of aluminium heat exchanger fins using laser structuring and PDMS coating for improved and scalable hydrophobic and ice-adhesion performance. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Li, Chenglin – PersonEntity: Name: NameFull: Apelt, Sabine – PersonEntity: Name: NameFull: Feuer, Anne – PersonEntity: Name: NameFull: Idrisov, Ravil – PersonEntity: Name: NameFull: Bergmann, Ute IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 12 Text: 2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 00218464 Numbering: – Type: volume Value: 101 – Type: issue Value: 16 Titles: – TitleFull: Journal of Adhesion Type: main |
| ResultId | 1 |
