| 학회 | 한국고분자학회 |
| 학술대회 | 2004년 가을 (10/08 ~ 10/09, 경북대학교) |
| 권호 | 29권 2호, p.565 |
| 발표분야 | 복합재료 |
| 제목 | Thermal and Electro-Optical Properties of Polyimide/Synthetic Smectite Nanocomposite Films |
| 초록 | Nanocomposites, made up of polyimides (PIs) and inorganic materials, are a vital subject of current research because various PIs are widely used as high performance polymers in advanced technologies such as microelectronics and aerospace1. In this work, to improve thermal and electro-optical properties of PIs, nanohybridized PI films(SS-1,SS-2) were obtained from solution blending of the poly (amic acid)s and the synthetic smectite. Cast films, containing 1～20 wt% by weight of synthetic smectite were characterized by XRD, TEM, TMA and haze meter. X-ray patterns of PI nanocomposites shows no discernable peaks from basal spacing of smectite meaning the fine dispersion of smectites in the PI matrix. And also, when the content of the smectite in the hybrid is increased, the resulted CTE decreases2. The reflective index were rather decreased than pristine PI and dielectric constants were also affected as the amount of synthetic smectite. Transmittance of nanocomposite at 440nm is as high as 85%, similar to that of the neat PI even if increasing the content of synthetic smectite. Table 1. Reflective indexes of PI/Synthetic smectite nanocomposite films Fig. 1. CTE of PI/SS-1 nanocomposite films Fig. 2. Haze of PI/SS-1 or SS-2 nanocomposite films Reference 1. J. H. Chang, D. K. Park and K. J. Ihn, J. Appl. Polym. Sci., 84, 2294 (2002). 2. A. Gu and F. C. Chang, J. Appl. Polym. Sci., 79, 289 (2001). |
| 저자 | 한승산1, 원종찬1, 이재흥1, 임승순2, 김용석1 |
| 소속 | 1한국화학(연), 2한양대 |
| 키워드 | nanocomposite; dielectric constant |
