Low-Loading f-MXene/Fluorosilicone Hybrid Highly Hydrophobic Coatings: Anti-Photoaging Mechanism and Application in Durable Protection of Stone and Brick Cultural Heritage.
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| Title: | Low-Loading f-MXene/Fluorosilicone Hybrid Highly Hydrophobic Coatings: Anti-Photoaging Mechanism and Application in Durable Protection of Stone and Brick Cultural Heritage. |
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| Authors: | Fu, Peng1 (AUTHOR) fupeng@snnu.edu.cn, Yan, Shaojun1 (AUTHOR), He, Kaili1 (AUTHOR), Shi, Meirong1 (AUTHOR) |
| Source: | Polymers (20734360). Jun2026, Vol. 18 Issue 11, p1346. 17p. |
| Subjects: | Protective coatings, Preservation of monuments, Hydrophobic compounds, Ultraviolet filters, Photodegradation, MXenes, Free radical scavengers |
| Abstract: | In the surface protection of stone and brick cultural heritage, a primary challenge is that traditional polymeric coatings are prone to photooxidative degradation under ultraviolet (UV) irradiation, and the resulting aged fragments readily block the substrate micropores, leading to a loss of "breathability". To address the performance conflict among waterproofing, breathability, and weather resistance, this study prepared few-layer Ti3C2TX MXene using a minimally intensive layer delamination (MILD) method. The poor compatibility between MXene and the fluorosilicone (FPS) resin matrix was effectively resolved through covalent modification with a silane coupling agent (KH-550). Results demonstrate that at an ultralow loading (0.5 wt%), the functionalized f-MXene is uniformly dispersed within the resin. This structure not only spontaneously constructs a hierarchical rough architecture on the surface that imparts high hydrophobicity (water contact angle of 131.6°), but its internal "labyrinth effect" also effectively blocks corrosive media. Simultaneously, the intrinsic water vapor transmission rate of the substrate is effectively maintained (with a reduction of less than 3%), and no visually perceptible color difference is generated (∆E = 1.2). Mechanically, f-MXene relies on interfacial interactions to act as a "nano-skeleton" for stress transfer, thereby increasing the uniaxial compressive strength of fragile limestone by 32.4%. Optical and spectroscopic characterizations further elucidate its anti-aging mechanism: f-MXene not only provides broadband UV shielding but also exhibits highly efficient radical scavenging activity during long-term UV aging. After 400 h of aging, the concentrations of hydroxyl and superoxide anion radicals within the system are significantly reduced, blocking the photooxidative chain reaction from the source. This work develops a composite protective material system for stone cultural heritage that simultaneously integrates high moisture permeability, minimal visual intervention, and long-term antioxidant performance. [ABSTRACT FROM AUTHOR] |
| Copyright of Polymers (20734360) is the property of MDPI 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.) | |
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| Header | DbId: egs DbLabel: Engineering Source An: 194587610 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Low-Loading f-MXene/Fluorosilicone Hybrid Highly Hydrophobic Coatings: Anti-Photoaging Mechanism and Application in Durable Protection of Stone and Brick Cultural Heritage. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Fu%2C+Peng%22">Fu, Peng</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> fupeng@snnu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Yan%2C+Shaojun%22">Yan, Shaojun</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22He%2C+Kaili%22">He, Kaili</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Shi%2C+Meirong%22">Shi, Meirong</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Polymers+%2820734360%29%22">Polymers (20734360)</searchLink>. Jun2026, Vol. 18 Issue 11, p1346. 17p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Protective+coatings%22">Protective coatings</searchLink><br /><searchLink fieldCode="DE" term="%22Preservation+of+monuments%22">Preservation of monuments</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrophobic+compounds%22">Hydrophobic compounds</searchLink><br /><searchLink fieldCode="DE" term="%22Ultraviolet+filters%22">Ultraviolet filters</searchLink><br /><searchLink fieldCode="DE" term="%22Photodegradation%22">Photodegradation</searchLink><br /><searchLink fieldCode="DE" term="%22MXenes%22">MXenes</searchLink><br /><searchLink fieldCode="DE" term="%22Free+radical+scavengers%22">Free radical scavengers</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: In the surface protection of stone and brick cultural heritage, a primary challenge is that traditional polymeric coatings are prone to photooxidative degradation under ultraviolet (UV) irradiation, and the resulting aged fragments readily block the substrate micropores, leading to a loss of "breathability". To address the performance conflict among waterproofing, breathability, and weather resistance, this study prepared few-layer Ti3C2TX MXene using a minimally intensive layer delamination (MILD) method. The poor compatibility between MXene and the fluorosilicone (FPS) resin matrix was effectively resolved through covalent modification with a silane coupling agent (KH-550). Results demonstrate that at an ultralow loading (0.5 wt%), the functionalized f-MXene is uniformly dispersed within the resin. This structure not only spontaneously constructs a hierarchical rough architecture on the surface that imparts high hydrophobicity (water contact angle of 131.6°), but its internal "labyrinth effect" also effectively blocks corrosive media. Simultaneously, the intrinsic water vapor transmission rate of the substrate is effectively maintained (with a reduction of less than 3%), and no visually perceptible color difference is generated (∆E = 1.2). Mechanically, f-MXene relies on interfacial interactions to act as a "nano-skeleton" for stress transfer, thereby increasing the uniaxial compressive strength of fragile limestone by 32.4%. Optical and spectroscopic characterizations further elucidate its anti-aging mechanism: f-MXene not only provides broadband UV shielding but also exhibits highly efficient radical scavenging activity during long-term UV aging. After 400 h of aging, the concentrations of hydroxyl and superoxide anion radicals within the system are significantly reduced, blocking the photooxidative chain reaction from the source. This work develops a composite protective material system for stone cultural heritage that simultaneously integrates high moisture permeability, minimal visual intervention, and long-term antioxidant performance. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Polymers (20734360) is the property of MDPI 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.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.3390/polym18111346 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 17 StartPage: 1346 Subjects: – SubjectFull: Protective coatings Type: general – SubjectFull: Preservation of monuments Type: general – SubjectFull: Hydrophobic compounds Type: general – SubjectFull: Ultraviolet filters Type: general – SubjectFull: Photodegradation Type: general – SubjectFull: MXenes Type: general – SubjectFull: Free radical scavengers Type: general Titles: – TitleFull: Low-Loading f-MXene/Fluorosilicone Hybrid Highly Hydrophobic Coatings: Anti-Photoaging Mechanism and Application in Durable Protection of Stone and Brick Cultural Heritage. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Fu, Peng – PersonEntity: Name: NameFull: Yan, Shaojun – PersonEntity: Name: NameFull: He, Kaili – PersonEntity: Name: NameFull: Shi, Meirong IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 06 Text: Jun2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 20734360 Numbering: – Type: volume Value: 18 – Type: issue Value: 11 Titles: – TitleFull: Polymers (20734360) Type: main |
| ResultId | 1 |
