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Functional UV Blocking and Superhydrophobic Coatings Based on Functionalized CeO2 and Al2O3 Nanoparticles in a Polyurethane Nanocomposite.
Velasco-Soto, Miguel Angel; Vázquez-Velázquez, Arturo Román; Pérez-García, Sergio Alfonso; Bautista-Carrillo, Lilia Magdalena; Vorobiev, Pavel; Méndez-Reséndiz, Abraham; Licea-Jiménez, Liliana.
Affiliation
  • Velasco-Soto MA; Centro de Investigación en Materiales Avanzados S.C., Unidad Monterrey, Alianza Norte No. 202, PIIT, Apodaca CP 66628, N.L., Mexico.
  • Vázquez-Velázquez AR; Instituto Tecnológico y de Estudios Superiores de Monterrey, Eugenio Garza Sada Ave. 2501, Tecnológico, Monterrey CP 64849, N.L., Mexico.
  • Pérez-García SA; Centro de Investigación en Materiales Avanzados S.C., Unidad Monterrey, Alianza Norte No. 202, PIIT, Apodaca CP 66628, N.L., Mexico.
  • Bautista-Carrillo LM; Centro de Investigación en Materiales Avanzados S.C., Unidad Monterrey, Alianza Norte No. 202, PIIT, Apodaca CP 66628, N.L., Mexico.
  • Vorobiev P; Centro de Investigación en Materiales Avanzados S.C., Unidad Monterrey, Alianza Norte No. 202, PIIT, Apodaca CP 66628, N.L., Mexico.
  • Méndez-Reséndiz A; Centro de Investigación en Materiales Avanzados S.C., Unidad Monterrey, Alianza Norte No. 202, PIIT, Apodaca CP 66628, N.L., Mexico.
  • Licea-Jiménez L; Centro de Investigación en Materiales Avanzados S.C., Unidad Monterrey, Alianza Norte No. 202, PIIT, Apodaca CP 66628, N.L., Mexico.
Polymers (Basel) ; 16(19)2024 Sep 25.
Article in En | MEDLINE | ID: mdl-39408416
ABSTRACT
Water repellency has significant potential in applications like self-cleaning coatings, anti-staining textiles, and electronics. This study introduces a novel nanocomposite system incorporating functionalized Al2O3 and CeO2 nanoparticles within a polyurethane matrix to achieve hydrophobic and UV-blocking properties. The nanoparticles were functionalized using an octadecyl phosphonic acid solution and characterized by FTIR and XPS, confirming non-covalent functionalization. Spin-coated polyurethane coatings with functionalized and non-functionalized Al2O3, CeO2, and binary Al2O3-CeO2 nanoparticles were analyzed. The three-layered Al2O3-CeO2-ODPA binary system achieved a contact angle of 166.4° and 85% transmittance in the visible range. Incorporating this binary functionalized system into a 0.4% w/v polyurethane solution resulted in a nanocomposite with 75% visible transmittance, 60% at 365 nm UV, and a 147.7° contact angle after three layers. These findings suggest that ODPA-functionalized nanoparticles, when combined with a polymer matrix, offer a promising approach to developing advanced hydrophobic and UV-protective coatings with potential applications across various industrial sectors.
Key words

Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Polymers (Basel) Year: 2024 Document type: Article Affiliation country: Mexico Country of publication: Switzerland

Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Polymers (Basel) Year: 2024 Document type: Article Affiliation country: Mexico Country of publication: Switzerland