| 학회 | 한국고분자학회 |
| 학술대회 | 2004년 가을 (10/08 ~ 10/09, 경북대학교) |
| 권호 | 29권 2호, p.566 |
| 발표분야 | 복합재료 |
| 제목 | Preparation and Characterization of Polymethylmetacrylate/Synthetic Smectite Nanocomposite Films |
| 초록 | Polymethylmetacrylate (PMMA) is inherently versatile polymer with reasonable good optical properties and processibility. Many nanoscopic approaches have been done to improve the thermal and mechanical properties maintaining the optical clearity of PMMA. The optical properties of nanocomposite, however, are not generally inconsistent with the concept of nanocomposite. In this work, we will show unique properties of the PMMA nanocomposite, such as thermal and optical properties. Cast films, containing 1～9wt% by weight of synthetic smectite were characterized in order to confirm the formation of nanohybrid films by XRD, TEM1. There is no discernible peak in XRD patterns, which meant the enlargement of the basal spaces of the synthetic smectite by the exfoliation. The dispersed synthetic smectite in nanocomposites films was observed at the nano-sized level with wide interval. The obtained nanocomposites films could be kept transparent at even 9wt% loading of synthetic smectite content. Uniquely, exfoliated structures of these films had lower coefficient of thermal expansion (CTE) and higher modulus compared with conventional PMMA films2. Table 1. Tensile properties of PMMA/SS-1 nanocomposite films Fig. 1. CTE of PMMA/SS-1 nanocomposite films Fig. 2. UV spectra of PMMA/SS-2 nanocomposite films Reference 1. H. L. Tyan, Y. C. Liu and K. H. Wei, Chem. Mater., 11, 1942 (1999) 2. Y. S. Choi, H. T. Ham and I. J. Chung, polymer, 44, 8147 (2003). |
| 저자 | 한승산1, 원종찬1, 이재흥1, 임승순2, 김용석1 |
| 소속 | 1한국화학(연), 2한양대 |
| 키워드 | nanohybrid film; exfoliation; coefficient of thermal expansion |
