| 학회 | 한국고분자학회 |
| 학술대회 | 2002년 가을 (10/11 ~ 10/12, 군산대학교) |
| 권호 | 27권 2호, p.139 |
| 발표분야 | 복합재료 |
| 제목 | Mechanical Behaviors of Polysilsesquioxane/P4VP Multilayer Films |
| 초록 | Charaterizing the mechanical properties of materials at micro-/nanometer scales has become a very active area of researches. In recent years, nanoindentation using load and displacement sensing indentation is one of the most popular techniques to measure mechanical properties of thin films . Inorganic/organic multilayer thin films are mimicking nacre, which is a ceramic laminated biocomposite with exceptional mechanical properties of fracture toughness and strength. Even though containing about 1 vol% polymer, it is twice as hard and 1,000 times as tough as its constituent phase. In this study, inorganic/organic multilayer films were composed of silica and poly-4-vinylpyridine (P4VP). Silica sol was prepared by an acid-catalyzed hydrolysis and condensation of tetraethylorthosilicate (TEOS). Multilayer films were fabricated using spin self-assembly based on the hydrogen bonding between silica and P4VP. After deposition of silica sols, samples were annealed at 180℃ for gelation of inorganic layers. Mechanical properties of multilayer films were measured by nanoindentation. |
| 저자 | 김지나, 김상철, 차국헌 |
| 소속 | 서울대 |
| 키워드 | mechanical properties; multilayer |
