DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Han, Seung Min | - |
dc.contributor.advisor | 한승민 | - |
dc.contributor.author | Kim, Jongbeom | - |
dc.date.accessioned | 2019-09-03T02:46:56Z | - |
dc.date.available | 2019-09-03T02:46:56Z | - |
dc.date.issued | 2019 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=843274&flag=dissertation | en_US |
dc.identifier.uri | http://hdl.handle.net/10203/266526 | - |
dc.description | 학위논문(석사) - 한국과학기술원 : 신소재공학과, 2019.2,[v, 38 p. :] | - |
dc.description.abstract | In this study, we suggest to fabricate high strength lightweight 3D porous structure based on polymer-metal composite using directional freeze-drying method. Ultralight cellulose nanofiber (CNF) reinforced with silver nanowire (AgNW) 3D porous structure was fabricated using one-step process of directional freeze-drying method. The strength of AgNW/CNF 3D porous structure increased by 14.3 times even when the relative density of the Ag nanowire increased by 0.29%. As the concentration of Ag nanowire increases, the stretch-dominant deformation property of AgNW/CNF 3D structure gradually increses. Metal coated polymer 3D porous structure was fabricated using copper electroless plating on the polyvinylalcohol (PVA) directional freeze-drying 3D structure. Sn-Ag activation condition for Cu electroless plating on non-conductive polymer was determined. Mechanical strength of Cu/PVA 3D structure was lower than expected because of tearing of copper coating layer. Further studies are needed to increase connectivity between metal and polymer to solve this problem. | - |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.subject | Freeze-drying▼acellulose nanofiber▼asilver nanowire▼apolyvinylalcohol▼aelectroless plating | - |
dc.subject | 동결건조▼a셀룰로오스 나노섬유▼a은 나노선▼a폴리비닐알코올▼a무전해도금 | - |
dc.title | Study on mechanical properties of metal-polymer 3D composite structure fabricated by freeze-drying method | - |
dc.title.alternative | 동결건조법을 이용한 금속-폴리머 3D 복합 구조체의 기계적 특성 연구 | - |
dc.type | Thesis(Master) | - |
dc.identifier.CNRN | 325007 | - |
dc.description.department | 한국과학기술원 :신소재공학과, | - |
dc.contributor.alternativeauthor | 김종범 | - |
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