| 학회 | 한국고분자학회 |
| 학술대회 | 2004년 가을 (10/08 ~ 10/09, 경북대학교) |
| 권호 | 29권 2호, p.238 |
| 발표분야 | 고분자 가공/블렌드 |
| 제목 | Thermal Decomposition Behavior of PEN-Silica Hybrid Nanocomposites |
| 초록 | Recently, polymer nanocomposites based on inorganic nanoparticles and organic polymeric materials have attracted considerable attention because they have shown ability of providing feasible approaches of enhancing the mechanical, thermal, electrical, and gas barrier properties as well as dimensional stability of polymers with even small amount of nanoparticles, resulting in their potential applications as advanced materials for the aerospace, automotive, electric, and electronic industries.1-4 Currently, four processing techniques have been used commonly for incorporating inorganic nanoparticles into the polymer matrix to facilitate the dispersion of nanoparticles: direct mixing, in situ polymerization, solution method, and melt compounding.4-7 Among these methods, melt compounding is more simple and effective process from a economic point of view rather than other processing techniques. Thus, this technique holds promise for use in large-scale industrial applications. Thermal decomposition behavior of polymer composites is very important because it affects final properties for their uses such as the upper temperature limit of use and dimensional stability. Thermogravimetric analysis (TGA) is a common method to characterize thermal decomposition kinetics and thermal stability of polymer composites by analyzing TG data with various heating rates. The kinetics of thermal decomposition of polymer composites can be investigated on the basis of the single heating-rate and multiple heating-rate methods.8,9 The kinetic analysis of thermal decomposition of polymer composites by the multiple heating rate method based on several TG curves obtained at various heating rates exhibited lower errors than that by the single heating-rate methods for the estimation of the kinetic parameters, including the frequency factor, the reaction order, and the apparent activation energy. However, only a few research on the kinetic analysis of thermal decomposition by the multiple heating-rate method has been carried out. In addition, little research has been performed on the kinetics analysis of thermal decomposition of polymer nanocomposites reinforced with silica nanoparticles, despite of much studies on thermal properties of various nanoparticles-filled polymer nanocomposites . In this research, hybrid nanocomposites based on poly(ethylene 2,6-naphthalate) (PEN) and silica nanoparticles were prepared by a process of melt blending, and thermal decomposition of PEN/silica nanocomposites were investigated with TGA at different heating rates. Thermal stability and thermal decomposition of hybrid nanocomposites were discussed. In addition, the kinetic parameters of thermal decomposition reaction for PEN/silica hybrid nanocomposites were analyzed by using the single heating-rate and the multiple heating-rate methods. References 1. T. Lan, P. D. Kaviratna, and T. J. Pinnavaia, Chem. Mater., 6, 573 (1994). 2. Y. I. Tien and K. H. Wei, Macromolecules, 34, 9045 (2001) 2. S. H. Kim, S. H. Ahn, and T. Hirai, Polymer, 44, 5625 (2003) 3. S. H. Ahn, S. H. Kim, B. C. Kim, K. B. Shim, and B. G. Cho, Macromol. Res., 12(3), 293 (2004). 4. B. M. Novak, Adv. Mater., 5, 283 (1993). 5. J. Z. Alexander, B. Morgan, J. Lamelas, and C. A. Wilkie, Chem. Mater., 13, 3774 (2001) 6. F. H. Gojny, J. Nastalczyk, Z. Roslaniec, and K. Schulte, Chem. Phys. Lett., 370, 820 (2003). 7. T. J. Pinnavaia and G. W. Beall, Polymer-Clay Nanocomposites, Wiley, New York, 2000. 8. Z. S. Petrovic and Z. Z. Zavargo, J. Appl. Polym. Sci., 32, 4353 (1986). 9. X. G. Li and M. R. Huang, Polym. Int., 46, 289 (1998). |
| 저자 | 김준영, 김성훈 |
| 소속 | 한양대 |
| 키워드 | Nanocomposites; Nanoparticles; Poly(ethylene 2; 6-naphthalate); Thermal decomposition; kinetics |
