Back to Search
Start Over
Facile fabrication of superhydrophobic paper with durability, chemical stability and self-cleaning by roll coating with modified nano-TiO2
- Source :
- Applied Nanoscience. 10:4063-4073
- Publication Year :
- 2020
- Publisher :
- Springer Science and Business Media LLC, 2020.
-
Abstract
- A superhydrophobic paper with excellent robustness was fabricated by roll coating with modified nano-TiO2. First, nano-TiO2 particles were hydrophobically modified by γ-aminopropyltriethoxysilane and 1H, 1H, 2H, 2H-perfluorooctyltriethoxysilane (POTS). Then the paper coating composed of modified nano-TiO2 particles as pigments and epoxy resin (EP) as adhesives was coated on a paper surface to create the desired surface morphology and surface energy. Compared with the uncoated filter paper, the prepared paper showed an improved rough surface morphology owing to the uniform layer of TiO2 microclusters deposited on the fiber network. The superhydrophobic paper exhibited water contact angles (WCA) about 153° ± 1.5°, and water sliding angles (WSA) about 3.5° ± 0.5°, low surface adhesion and excellent bounce ability. The superhydrophobic paper can withstand a variety of wear and tear, such as tape stripping and knife scraping. The as-prepared superhydrophobic paper showed mechanical durability even after 20 wear cycles with sandpaper,thus sustaining excellent superhydrophobicity on the filter paper surface. Moreover, it remains fully functional even in environments with high concentrations of acid and alkali for 96 h. The superhydrophobicity was not affected after storage for 6 months in a natural environment. It was confirmed that the superhydrophobic paper surface exhibited excellent chemical stability, long-term stability and self-cleaning properties. The entire production process was operated under normal environment, without complex equipment; and, as such, has the possibility for large-scale production and application in industry.
- Subjects :
- Materials science
Materials Science (miscellaneous)
02 engineering and technology
engineering.material
010402 general chemistry
01 natural sciences
Contact angle
Coating
Electrical and Electronic Engineering
Physical and Theoretical Chemistry
Composite material
Sandpaper
Filter paper
Cell Biology
Epoxy
021001 nanoscience & nanotechnology
Atomic and Molecular Physics, and Optics
Surface energy
0104 chemical sciences
visual_art
engineering
visual_art.visual_art_medium
Adhesive
0210 nano-technology
Layer (electronics)
Biotechnology
Subjects
Details
- ISSN :
- 21905517 and 21905509
- Volume :
- 10
- Database :
- OpenAIRE
- Journal :
- Applied Nanoscience
- Accession number :
- edsair.doi...........1ac0cb9905e46314cec7405982a61c26