Self-Cleaning Antibacterial Composite Coating of Fluorinated Acrylic Resin and Ag/SiO2 Nanoparticles with Quaternary Ammonium

With improvements in living standards, the demand for antibacterial self-cleaning coatings has significantly increased. In this work, self-cleaning coatings with antibacterial properties were fabricated by spray-coating a composite of fluorinated acrylic resin and Ag/SiO2 nanoparticles with quaterna...

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Bibliographic Details
Published in:Polymers 2024-07, Vol.16 (13), p.1885
Main Authors: Gu, Jiangdong, An, Qiufeng, Huang, Meng-chen, Ge, Ping, Xue, Chao-hua
Format: Article
Language:English
Subjects:
Acid resistance
Acrylic resins
Alkaline cleaning
Antimicrobial agents
Bacteria
Coating effects
Contact angle
Fluorination
Fourier transforms
Hydrophobic surfaces
Hydrophobicity
Marine corrosion
Nanoparticles
Plasma etching
Protective coatings
Quaternary ammonium salts
Reagents
Silicon dioxide
Silver
Solvents
Spectrum analysis
Surface energy
Surface stability
Wear resistance
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Summary:With improvements in living standards, the demand for antibacterial self-cleaning coatings has significantly increased. In this work, self-cleaning coatings with antibacterial properties were fabricated by spray-coating a composite of fluorinated acrylic resin and Ag/SiO2 nanoparticles with quaternary ammonium salts. The synergistic action of the quaternary ammonium salts and silver nanostructures caused the coating to show a dual antibacterial effect. The Ag/SiO2 nanoparticles roughened the coating’s surface and, in combination with the fluorinated chains, provided the surface a superhydrophobic self-cleaning property with a contact angle of 156° and a sliding angle of less than 2°. Notably, the composite coating withstood 100 abrasion cycles without losing its superhydrophobicity and the contact angle is still exceeded 150° after 60 h of immersion solutions with different pH values, demonstrating outstanding wear resistance and acid/alkali stability. The incorporation of nanostructured antibacterial agents was effective in improving the roughness and antibacterial properties of the low-surface-energy resin, resulting in a self-cleaning antibacterial composite coating. This method may pave a new route for the design of functional coating materials with excellent overall performance.
ISSN:2073-4360
2073-4360
DOI:10.3390/polym16131885