Transparent Omniphobic Coating with Glass-Like Wear Resistance and Polymer-Like Bendability
| Autor: | Jiandong Wang, Kaka Zhang, Shuaishuai Huang, Guojun Liu |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
chemistry.chemical_classification
Materials science 010405 organic chemistry General Chemistry Polymer 02 engineering and technology General Medicine engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Omniphobie Catalysis 0104 chemical sciences Beschichtungen Wear resistance Ringöffnende Polymerisation Verschleißfestigkeit Coating chemistry engineering Composite material 0210 nano-technology POSS |
| Popis: | Transparent omniphobic or anti-smudge coatings with glass-like wear resistance and polymer-like bendability have many potential applications but there are no reports of such materials. We Report herein a molecular composite possessing these properties. The composite is prepared via the photo-initiated ring-opening polymerization of the epoxide rings of glycidyloxypropyl polyhedral silsesquioxane (GPOSS). While the desired hardness is provided by the silica core, the flexibility is imparted by the glycidyloxypropyl network. Oil and water repellency is achieved without adversely affecting the other properties by incorporating a low-surface-tension liquid lubricant poly(dimethyl siloxane). On the final coating, various organic solvents and water readily and cleanly glide, while complex fluids, such as ink and paint facilely contract. These properties are retained after an initially flat coating sample is rolled into a U-shape 500 times or is abraded with steel wool. |
| Databáze: | OpenAIRE |
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