| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 봄 (04/10 ~ 04/12, 부산컨벤션센터(BEXCO)) |
| 권호 |
44권 1호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
Curvature engineering of glassy polymers using programmed light absorption |
| 초록 |
Origami-inspired shape-reconfiguration of polymeric materials from 2D to 3D have drawn great attention. However, the programmed deformation of glassy polymers is often limited to in-plane folding of hinges. In this study, we report contactless curvature engineering of 2D biaxially-stretched polymers by selective photothermal effects implemented by patterned inks. Under the exposure of the near infrared (NIR) light, patterned areas in the polymeric film experience local light absorption above the polymer glass transition, resulting in contraction. Herein, we employed radial hinges and facets to program non-linear crease and non-responsive areas towards construction of complex 3D architectures, including saddle shapes and chiral structures. We systematically varied the number of radial hinges and will discuss effectiveness of patterns along with the finite element modeling (FEM) simulation. |
| 저자 |
이재경1, 이종혁1, 최준찬2, 이재원2, 원수경1, 김학린2, 위정재1
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| 소속 |
1인하대, 2경북대 |
| 키워드 |
Origami; programmed deformation; biaxially-stretched polymers; selective photothermal effects; NIR light; glass transition; radial hinges; facets; saddle shapes; chiral structures; FEM simulation
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| E-Mail |
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