| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터) |
| 권호 |
46권 2호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
Tailoring Surface Properties of Polymers by Laser-Induced Nanocarbon Direct Texturing |
| 초록 |
The growth of laser-induced nanocarbons is a promising route toward surface engineering of polymers. The current work aims to demonstrate how this new approach can enable achieving varied surface properties based on tuning the nano-/micro-structured morphology of the formed graphitic material on polyimide (PI) films. Engineered patterning of local laser carbonization enabled tuning the surface properties of PI from hydrophilic to superhydrophobic. Morphology and chemical composition were controlled by adjusting the programmed scan line pitch during lasing to achieve superhydrophobicity with a water contact angle up to 156° in the direction perpendicular to carbonized lines. Moreover, the surface wettability and the sliding angle show strong dependence on the surface curvature, demonstrating strain-induced switchable adhesion that transports droplets without loss or contamination. This work provides a new insight into designing interfaces for droplet manipulation. |
| 저자 |
남기호 |
| 소속 |
경북대 |
| 키워드 |
laser-induced graphene; micropatterning; polyimide; heteroatom self-doping; anisotropic wettability; surface adhesion; droplet manipulation
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| E-Mail |
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