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- Title
An antimicrobial acrylic polyurethane coating with TiO<sub>2</sub>-Ag hybrid nanoparticles.
- Authors
Nguyen, Thien Vuong; Do, Truc Vy; Hoang, Thu Ha; Nguyen, Tuan Anh; Lu, Le Trong; Le, Thi Mat; Pham, Thanh Minh; Shuib, Raa Khimi; Tran, Dai Lam
- Abstract
The purpose of this work is to fabricate the advanced organic antibacterial coating containing the strong photocatalytic nanomaterials. For this purpose, firstly the TiO2–Ag hybrid nanoparticles are synthesized by chemical reduction method. Then, the antibacterial coating based on acrylic polyol, polyisocyanate, and these TiO2–Ag hybrid nanoparticles has been prepared. Mechanical properties show that the optimal content of TiO2–Ag hybrid nanoparticles in the coating matrix is 2 wt%, with its abrasion resistance of 166.2 L/mil; impact strength of 195 kg cm; adhesion of size #1 and relative hardness of 0.78. In addition, FE-SEM analysis shows that the nanocomposite coating has a tight structure with homogeneous dispersion of TiO2–Ag nanoparticles in the polymer matrix. The paint film has good antibacterial activity and has great application prospects. Data from the antibacterial test indicates that in the presence of an acrylic polyurethane coating containing 2 wt% TiO2–Ag, the number of viable Escherichia coli decreased from 3.4 × 105 CFU/ml to 1.5 × 102 CFU/ml after 24 h of culture.
- Subjects
ACRYLIC coatings; IMPACT strength; CHEMICAL reduction; ORGANIC coatings; ANTIBACTERIAL agents; NANOPARTICLES
- Publication
Pure & Applied Chemistry, 2024, Vol 96, Issue 8, p1101
- ISSN
0033-4545
- Publication type
Article
- DOI
10.1515/pac-2024-0019