Browse > Article

Processability Enhancement in Melt Processing of Poly(ethylene naphthalate)  

Kim Hyogap (Center for Advanced Functional Polymers, Department of Polymer Science and Engineering, Dankok University)
Kang Ho-Jong (Center for Advanced Functional Polymers, Department of Polymer Science and Engineering, Dankok University)
Publication Information
Polymer(Korea) / v.29, no.5, 2005 , pp. 475-480 More about this Journal
Abstract
The lowering of melt viscosity has been investigated to achieve the processability enhancement in poly(ethylene naphthalate) (PEN) melt processing by the reactive melt blending with poly(ethylene terephthalate) (PET) and introducing lubricant as well. CaST lubricant resulted in the lowering of PEN melt viscosity but noticeable mechanical property drop was found in PEN with more than $2wt\%$ of lubricant due to the acceleration of thermal degradation by excess lubricant. PEN/PET (90/10) blend has less melt viscosity than PEN and transesterification between two polymers caused the additional viscosity depression. further viscosity lowering was found in PEN/PET blend with CaST since CaST is acting as the catalyst of transesterification as well as a lubricant in PEN/PET blend.
Keywords
poly(ethylene naphthalate); rheological property; calcium stearate; blends; transesterification;
Citations & Related Records

Times Cited By Web Of Science : 1  (Related Records In Web of Science)
Times Cited By SCOPUS : 1
연도 인용수 순위
1 S. Shimotsuma, T. Asai, M. Hosoi, and H. M. Masuda, U.S. Patent 3,937,754 (1976)
2 J. Edenbaum, Plastic Additives and Modifiers Handbook, Chapter 55, Chapman & Hall, New York, 1992
3 J. P. Cook, H .P. W. Hugill, and A. R. Lowe, British Patent 604073 (1948)
4 E. B. Rabinovitch, E. Lacatus, and J. W. Summer, J. Vinyl. Technol., 6, 98 (1984)   DOI
5 K. Lee, J. Lee, and H. Chung, Koran Patent 0343518 (2002)
6 T. Kuratsuji, S. Kawase, T. Shima, S. Shimotsuma, and M. Hosoi, U.S. Patent 3,961, 008 (1974)
7 R. S. Poter and L. Wang, Polymer, 33, 2019 (1992)   DOI   ScienceOn
8 A. M. Kotliar, J. Polym. Sci., 16, 367 (1981)   DOI
9 M. E. Stewart, A. J. Cox, and D. M. Naylor, Polymer, 34, 4060 (1993)   DOI   ScienceOn
10 M. Guo and H. G. Zachmann, Polymer, 34, 2503 (1993)   DOI   ScienceOn
11 J. O. Park, S. W. Chun, and H. J. Kang, Polymer(Korea), 22, 943 (1998)
12 H. Kim, J. Kim, S. Lim, K. Lee, M. Park, and H. J. Kang, Polymer(Korea), 28, 239 (2004)
13 J. Lee, S. Park, S. Park, and D. Baek, U.S. Patent 6,270,851(2001)
14 R. Lindner, Plastic Compounding, 35 (1981)