| 학회 |
한국화학공학회 |
| 학술대회 |
2019년 봄 (04/24 ~ 04/26, 제주국제컨벤션센터) |
| 권호 |
25권 1호, p.727 |
| 발표분야 |
재료(Materials) |
| 제목 |
Graphene Hollow Capsule Based Closed Cellular Network for Ultralight, Strong, and Superelastic Materials |
| 초록 |
Advanced materials with low density and high strength impose transformative impacts in the construction, aerospace, and automobile industries. These materials can be realized by assembling well-designed building units (BUs) into interconnected structures. This study uses a hierarchical design strategy starting from the functionalized graphene oxide nanosheets at the molecular- and nanoscale, leading to the microfluidic fabrication of solid bubbles at the microscale. Then, bubbles are assembled into centimeter-scale 3D structures. Subsequently, these structures are transformed into self-interconnected and reinforced closed-cellular network. The 3D graphene structure exhibits the Young’s modulus above 300 kPa with a light density of 7.7 mg cm−3 and sustaining up to 87% of the compressive strain benefiting from efficient stress dissipation through the complete space-filling closed-cellular network. The method opens a new pathway for designing lightweight, strong, and superelastic materials. |
| 저자 |
오민준1, 여선주2, 전현민1, 이민환3, 배중건3, 김예슬1, 박경진4, 이승우4, Daeyeon Lee5, 원병묵1, 이원보3, 권석준2, 유필진1
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| 소속 |
1성균관대, 2KIST, 3서울대, 4고려대, 5Univ. of Pennsylvania |
| 키워드 |
재료 |
| E-Mail |
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| 원문파일 |
초록 보기 |
