Journal
SCIENCE
Volume 347, Issue 6226, Pages 1132-1135Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.aaa0946
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Funding
- Engineering and Physical Sciences Research Council [EP/F035330/1] Funding Source: researchfish
- EPSRC [EP/F035330/1] Funding Source: UKRI
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Superhydrophobic self-cleaning surfaces are based on the surface micro/nanomorphologies; however, such surfaces are mechanically weak and stop functioning when exposed to oil. We have created an ethanolic suspension of perfluorosilane-coated titanium dioxide nanoparticles that forms a paint that can be sprayed, dipped, or extruded onto both hard and softmaterials to create a self-cleaning surface that functions even upon emersion in oil. Commercial adhesives were used to bond the paint to various substrates and promote robustness. These surfaces maintained their water repellency after finger-wipe, knife-scratch, and even 40 abrasion cycles with sandpaper. The formulations developed can be used on clothes, paper, glass, and steel for a myriad of self-cleaning applications.
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