| 학회 | 한국고분자학회 |
| 학술대회 | 2005년 봄 (04/14 ~ 04/15, 전경련회관) |
| 권호 | 30권 1호, p.386 |
| 발표분야 | 복합재료 |
| 제목 | Preparation and Characterization of PET/Synthetic zeolites nanocomposites by in-situ polymerization |
| 초록 | Recently, polymer nanocomposites with inorganic materials as fillers have attracted great interests since they frequently exhibit unexpected hybrid properties synergistically derived from the two components.1 Poly(ethylene terephthalate) (PET) is one of the most widely used polymers, due to its low cost and high performance, applied as synthetic fibers, films, filaments, bottles, and engineering plastics. Zeolites are microporous crystalline silicates, composed of TO4 tetrahedra (T=Si, Al, Ti) with oxygen atoms connecting neighboring tetrahedral. For a completely siliceous structure, combination of TO4 (T=Si) units in this fashion leads to silica (SiO2), which is an uncharged solid.2 We used LTA and MFI type zeolites among synthetic zeolites as inorganic fillers. LTA type A-zeolite have a Si/Al ratio 1, sodium ions, and a pore size larger than 4Å. It has potential applications such as catalysts, adsorption agents, ion-exchange resins and so on.2 MFI type TS-1 zeolite having a Si/Ti ratio ＞200, a pore size 5.5 Å is a synthetic zeolite in which a small number of Ti atoms substitute Si atoms in a purely siliceous framework with the MFI structure. It has better activity and excellent selectivity to target products compared with many conventional ester exchange catalysts and is the most versatile solid–acid catalyst known.2,3 The objective of this study is the hope that PET molecular threading into well-dispersed zeolites will provide such intimate interactions between PET chains and zeolites resulting in a novel reinforcement effects.4 Thus, PET nanocomposites containing (0.5-2 wt%) zeolites were prepared by in-situ polymerization. Then, Thermal, mechanical properties, and morphology were investigated. References 1. W. G. Hahm, H. S. Myung, S. S. Im, Macromolecular Research, 12, 85 (2004). 2. S. M. Auerbach, K. A. Carrado, and P. K. Dutta, Hand book of Zeolite Science and Technology, Marcel Dekker, New York, 2003, pp85 3. Ma Xinbin, Guo Hongli, Wang Shengping, and Sun Yongli, Fuel Processing Technology, 83, 275 (2003) 4. H. L. Frisch, J. E. Mark, Chem. Mater, 8, 1735 (1996) |
| 저자 | 신영학, 이완덕, 임승순 |
| 소속 | 한양대 |
| 키워드 | PET; zeolite; nanocomposite |
