| 학회 | 한국고분자학회 |
| 학술대회 | 2005년 가을 (10/13 ~ 10/14, 제주 ICC) |
| 권호 | 30권 2호 |
| 발표분야 | 복합재료 |
| 제목 | Crystallization and Melting Behaviors of PEN/CNT Nanocomposites |
| 초록 | Carbon nanotube (CNT) has attracted a great deal of interests as novel advanced reinforcements in a new kind of polymer nanocomposites from fields ranging from the industrial to the scientific, since the discovery of a CNT by Iijima1 in 1991. However, due to high cost and limited availability of CNT, only a few of the practical applications in the industrial fields have been realized to date. The melt compounding is a simple and effective process to fabricate CNT and polymer nanocomposites from an industrial perspective. The mechanical properties of polymer nanocomposites are influenced by their morphology and crystallization behavior.2 In this study, polymer nanocomposite consisting of poly(ethylene 2,6-naphthalate) (PEN) and CNT were prepared by a melt compounding. As shown in Figure 1, the increase in the crystallization temperature of PEN/CNT nanocomposites with increasing CNT content, together with the fact that PEN/CNT nanocomposites have lower degree of supercooling for the crystallization with increasing CNT content, suggests that CNT effectively acts as a nucleating agent in the PEN matrix. In addition, the decrease in the half time of the crystallization suggests that the incorporation of CNT enhances the crystallization of the PEN matrix through heterogeneous nucleation, resulting in the higher crystallization rate. The isothermal crystallization of PEN/CNT nanocomposites depends significantly on the isothermal crystallization temperature and CNT content. Fig. 1. Crystallization temperature and degree of supercooling of PEN/CNT nanocomposites with the CNT content. References 1. S. Iijima, Nature, 354, 56 (1991). 2. T. D. Fornes, P. J. Yoon, H. Keskkula, and D. R. Paul, Polymer, 42, 9929 (2001). |
| 저자 | 김준영, 김성훈 |
| 소속 | 한양대 |
| 키워드 | Carbon nanotube; Polymer Nanocomposite; Crystallization; Melting |
