A Self-Healing, Transparent, and Hydrophobic Flame-Retardant Coating for Wood Based on Bio-Derived Flame Retardants and Fluorosilane Surface Treatment.
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| Title: | A Self-Healing, Transparent, and Hydrophobic Flame-Retardant Coating for Wood Based on Bio-Derived Flame Retardants and Fluorosilane Surface Treatment. |
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| Authors: | Liu, Lu1 (AUTHOR), He, Hongfei2 (AUTHOR), Feng, Xiaming1,3 (AUTHOR), Fu, Ming4 (AUTHOR), Yang, Hongyu1,3 (AUTHOR), Yu, Bin2 (AUTHOR) |
| Source: | Polymers (20734360). Jun2026, Vol. 18 Issue 12, p1497. 20p. |
| Subjects: | Protective coatings, Fireproofing agents, Preservation of wood, Surface preparation, Surface coatings, Hydrophobic interactions |
| Abstract: | Wood's inherent flammability, arising from its cellular organic composition, demands effective protective strategies. This study aimed to develop a multifunctional bio-based wood coating simultaneously integrating flame retardancy, optical transparency, moisture-triggered self-healing, and surface hydrophobicity within a single formulation. An intumescent flame retardant (PAGHR) was synthesized via ionic assembly of a phytic acid–phosphorylated polyethylene glycol conjugate (PgP) with a piperazine–etidronic acid salt (HEPHR), subsequently blended with gelatin (G) and surface-finished with fluorosilane. The optimized coating (G/PAGHR-4) achieved a limiting oxygen index (LOI) of 37.2% and passed the UL-94 V-0 rating. Cone calorimetry demonstrated reductions of 75.1% in peak heat release rate (pHRR) and 50.0% in total heat release (THR) relative to the neat gelatin control. Char yield at 700 °C increased substantially from 17.8 wt% to 41.0 wt%, confirming effective condensed-phase char promotion. Beyond fire performance, the coating maintained high visible-light transmittance, preserved natural wood aesthetics, and achieved macroscopic scratch healing within 40 min upon ambient water contact. Fluorosilane finishing elevated the water contact angle to 122°. These results establish a scalable, environmentally friendly strategy for multifunctional bio-based protective coatings applicable to wood, textiles, and polymer substrates. [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.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 194908366 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: A Self-Healing, Transparent, and Hydrophobic Flame-Retardant Coating for Wood Based on Bio-Derived Flame Retardants and Fluorosilane Surface Treatment. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Liu%2C+Lu%22">Liu, Lu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22He%2C+Hongfei%22">He, Hongfei</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Feng%2C+Xiaming%22">Feng, Xiaming</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Fu%2C+Ming%22">Fu, Ming</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yang%2C+Hongyu%22">Yang, Hongyu</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yu%2C+Bin%22">Yu, Bin</searchLink><relatesTo>2</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Polymers+%2820734360%29%22">Polymers (20734360)</searchLink>. Jun2026, Vol. 18 Issue 12, p1497. 20p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Protective+coatings%22">Protective coatings</searchLink><br /><searchLink fieldCode="DE" term="%22Fireproofing+agents%22">Fireproofing agents</searchLink><br /><searchLink fieldCode="DE" term="%22Preservation+of+wood%22">Preservation of wood</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+preparation%22">Surface preparation</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+coatings%22">Surface coatings</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrophobic+interactions%22">Hydrophobic interactions</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Wood's inherent flammability, arising from its cellular organic composition, demands effective protective strategies. This study aimed to develop a multifunctional bio-based wood coating simultaneously integrating flame retardancy, optical transparency, moisture-triggered self-healing, and surface hydrophobicity within a single formulation. An intumescent flame retardant (PAGHR) was synthesized via ionic assembly of a phytic acid–phosphorylated polyethylene glycol conjugate (PgP) with a piperazine–etidronic acid salt (HEPHR), subsequently blended with gelatin (G) and surface-finished with fluorosilane. The optimized coating (G/PAGHR-4) achieved a limiting oxygen index (LOI) of 37.2% and passed the UL-94 V-0 rating. Cone calorimetry demonstrated reductions of 75.1% in peak heat release rate (pHRR) and 50.0% in total heat release (THR) relative to the neat gelatin control. Char yield at 700 °C increased substantially from 17.8 wt% to 41.0 wt%, confirming effective condensed-phase char promotion. Beyond fire performance, the coating maintained high visible-light transmittance, preserved natural wood aesthetics, and achieved macroscopic scratch healing within 40 min upon ambient water contact. Fluorosilane finishing elevated the water contact angle to 122°. These results establish a scalable, environmentally friendly strategy for multifunctional bio-based protective coatings applicable to wood, textiles, and polymer substrates. [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/polym18121497 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 20 StartPage: 1497 Subjects: – SubjectFull: Protective coatings Type: general – SubjectFull: Fireproofing agents Type: general – SubjectFull: Preservation of wood Type: general – SubjectFull: Surface preparation Type: general – SubjectFull: Surface coatings Type: general – SubjectFull: Hydrophobic interactions Type: general Titles: – TitleFull: A Self-Healing, Transparent, and Hydrophobic Flame-Retardant Coating for Wood Based on Bio-Derived Flame Retardants and Fluorosilane Surface Treatment. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Liu, Lu – PersonEntity: Name: NameFull: He, Hongfei – PersonEntity: Name: NameFull: Feng, Xiaming – PersonEntity: Name: NameFull: Fu, Ming – PersonEntity: Name: NameFull: Yang, Hongyu – PersonEntity: Name: NameFull: Yu, Bin IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 06 Text: Jun2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 20734360 Numbering: – Type: volume Value: 18 – Type: issue Value: 12 Titles: – TitleFull: Polymers (20734360) Type: main |
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