Superhydrophobic transparent surface of nanostructured poly(methly methacrylate) enhanced by a hydrolysis reaction
- Superhydrophobic transparent surface of nanostructured poly(methly methacrylate) enhanced by a hydrolysis reaction
- 허은규; 고태준; 신봉수; 노현철; 다이웨이; 성원경; 김호영; 이광렬; 오규환; 문명운
- oxygen plasma; nanopatterning; superhydrophobic; transparency; hydrolysis; hydrophobic coatings; plasma etching; poly(methly methacrylate) (PMMA)
- Issue Date
- Plasma Processes and Polymers
- VOL 10, NO 5, 481-488
- We report a method to create a self-cleaning, transparent surface on poly(methyl methacrylate) (PMMA) using a dry etching with CF4 plasma and a subsequent hydrolysis process with water immersion. During the CF4 plasma treatment, nanoscale pillar structures were formed and its aspect ratio tended to increase. However, the transparency was reduced due to the deposition and the accumulation of undesired capping layers, which cover the structures. The hydrolysis was used to remove the capping layers of metal fluoride. As a result, the surface improves their clarity based on the transmittance up to 95%, because the reflectivity was reduced. With a subsequent hydrophobic coating, a superhydrophobic surface was achieved showing robust anti-wetting and anti-dewing effects.
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