Abstract
We have prepared poly(ethylene terephthalate) (PET) nanocomposites filled with two different types of fumed silicas, hydrophilic (FS) and hydrophobic (MFS) silicas of 7-nm diameter, byin situ polymerization. We then investigated the morphological changes, rheological properties, crystallization behavior, and mechanical properties of the PET nanocomposites. Transmission electron microscopy (TEM) images indicate that the dispersibility of the fumed silica was improved effectively byin situ polymerization; in particular, MFS had better dispersibility than FS on the non-polar PET polymer. The crystallization behavior of the nanocomposites revealed a peculiar tendency: all the fillers acted as retarding agents for the crystallization of the PET nanocomposites. The incorporation of fumed silicas increased the intrinsic viscosities (IV) of the PET matrix, and the strong particleparticle interactions of the filler led to an increased melt viscosity. Additionally, the mechanical properties, toughness, and modulus of the nanocomposites all increased, even at low filler content.
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References
J. W. Cho and D. R. Paul,Polymer,42, 1083 (2001).
T. D. Fornes, P. J. Yoon, H. Keskkula, and D. R. Paul,Polymer,42, 9929 (2001).
Y. Kojima, A. Usaki, M. Kawasumi, A. Okata, T. Kurauchi, and O. Kamigaito,J. Appl. Polym. Sci.,49, 1259 (1993).
J. H. Chang, B. S. Seo, and D. H. Hwang,Polymer,43, 2969 (2002).
J. G. Ryu, J. W. Lee, and H. S. Kim,Macromol. Res.,10, 187 (2002).
P. B. Messesmith and E. P. Giannelis,J. Polym. Sci., Part A: Polym. Chem.,33, 1047 (1995).
Technical Bulletin Pigments No. 11, Degussa-Huls AG, Frankfurt am Main, Germany, 1989.
H. Barthel,Colloid Surface A,101, 217 (1995).
J. B. Donnet, M. J. Wang, E. Papirer, and A. Vidal,Kaut. Gummi. Kunstst.,39, 510 (1986).
M. Ettlinger, T. Ladwig, and A. Weise,Prog. Org. Coat.,40, 31 (2000).
S. C. Chung, W. G. Hahm, S. S. Im, and S. G. Oh,Macromol. Res.,10, 221 (2002).
E. Reynaud, T. Jouen, C. Gauthier, G. Vigier, and J. Varlet,Polymer,42, 8759 (2001).
F. Yang, Y. C. Ou, and Z. Z. Yu,J. Appl. Polym. Sci.,69, 355 (1998).
Z. R. Min, Q. Z. Ming, X. Z. Yong, M. Z. Han, R. Walter, and K. Friendrich,Polymer,42, 167 (2001).
H. G. Lux, K. Meier, A. Muller, R. Oelmuller, and A. Ramb, US Patent, 6.191.122 B1 (2001).
L. E. Nielsen and R. F. Landel,Mechanical Properties of Polymers and Composites, Marcel Dekker, New York, 1994.
C. D. Han, J. Kim, and J. K. Kim,Macromolecules,22, 383 (1989).
M. Avrami,J. Chem. Phys.,7, 1103 (1939).
M. Avrami,J. Chem. Phys.,8, 212 (1939).
M. Avrami,J. Chem. Phys.,9, 177 (1939).
H. Z. Friendlander and C. R. Frick,J. Polym. Sci. B,2, 475 (1964).
B. Wunderlich,Macromolecular Physics: Crystal Melting, Academic, New York, 1980, vol. 3.
T. B. Lewis and L. E. Nielsen,J. Appl. Polym. Sci.,14, 1449 (1970).
L. E. Nielsen,J. Appl. Phys.,41, 4626 (1970).
S. McGee and R. L. McCullough,Polym. Comp.,2, 149 (1981).
H. S. Katz and J. V. Milewski,Handbook of Fillers and Reinforcements for Plastics, Van Nostrand Reinhold, New York, 1978.
J. J. Breuning, R. D. Johnson, and G. K. Morris, US Patent, 531976 (1984).
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Hahm, WG., Myung, HS. & Im, S.S. Preparation and properties ofin situ polymerized poly(ethylene terephthalate)/fumed silica nanocomposites. Macromol. Res. 12, 85–93 (2004). https://doi.org/10.1007/BF03218999
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DOI: https://doi.org/10.1007/BF03218999