Abstract
Preformed polystyrene-co-butylacrylate (PScoBu) core-shell particles and polystyrene microspheres as well as amine-terminated butadiene nitrile (ATBN) rubber have been used for modification of both rigid and more flexible crosslinked DGEBA-based epoxy networks having significantly different crosslink densities. Some variations in cure kinetics have been shown by both thermal and rheological measurements. Independently of the crosslink density of the neat epoxy matrix, function of the cycloaliphatic or aliphatic hardener used, the toughening effect via core-shell modification has been found as good as that for rubber modification but with a better retention of thermal properties. Results are investigated as a function of the morphologies obtained by scanning electron microscopy (SEM) but also by atomic force microscopy (AFM). Larger fracture toughness was obtained for every-unmodified and modified- epoxy matrices cured with the aliphatic hardener as a consequence of the lower crosslink density of the corresponding mixtures.
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References
S. Kunz-Douglass, P. W. R. Beaumont and M. F. Ashby, J. Mater. Sci. 49 (1980) 442.
J. M. Scott, G. M. Wells and D. C. J. Phillips, ibid. 15 (1980) 1436.
A. J. Kinloch, S. J. Shaw, D. A. Tod and D. L. Hunston, Polymer 24 (1983) 1355.
A. F. Yee and R. A. Pearson, J. Mater. Sci. 21 (1986) 2462.
Y. Huang and A. J. Kinloch, ibid. 27 (1992) 2753.
H.-J. Sue, Polym. Eng. Sci. 31 (1991) 275.
G. Levita, A. Marchetti and A. Lazzeri, Makromol. Chem., Macromol. Symp. 41 (1991) 179.
B. J. Cardwell and A. F. Yee, Polymer 34 (1993) 1695.
M. C. M. Van Der Sanden and H. E. H. Meijer, ibid. 34 (1993) 5063.
H.-J. Sue, E. I. Garcia Meitin and N. A. Orchard, J. Polym. Sci.: Part B: Polym. Phys. 31 (1993) 595.
B. Geisler and F. N. Kelley, J. Appl. Polym. Sci. 54 (1994) 177.
H.-J. Sue, J. L. Bertram, E. I. Garcia Meitin and P. M. Puckett, J. Polym. Sci.: Part B: Polym. Phys. 33 (1995) 2003.
F. Lu, H. H. Kausch, W. J. Cantwell and M. Fischer, J. Mater. Sci. Lett. 15 (1996) 1018.
H.-J. Sue, E. I. Garcia Meitin, D. M. Pickelman and C. J. Bott, Colloid Polym. Sci. 274 (1996) 342.
J. Y. Qian, R. A. Pearson, V. L. Dimonie, O. L. Shaffer and M. S. El-Aasser, Polymer 38 (1997) 21.
J. D. Lemay and F. N. Kelley, Adv. Polym. Sci. 78 (1986) 115.
R. A. Pearson and A. F. Yee, J. Mater. Sci. 24 (1989) 2571.
I. Mondragon, P. M. Remiro, M. D. Martin, A. Valea, M. Franco and V. Bellenguer, Polym. Intern. 47 (1998) 152.
European Structural Integrity Society, “Testing Protocol for Polymers” (ESIS, 1992).
J. G. Williams and M. J. Cawood, Polym. Testing 9 (1990) 15.
J. W. Kim, J. Y. Kim and K. D. Suh, J. Macromol. Sci.-Pure Appl. Chem. A35 (1998) 249.
J. He, D. Raghavan, D. Hoffman and D. Hunston, Polymer 40 (1999) 1923.
E. Butta, G. Levita, A. Marchetti and A. Lazzeri, Polym. Eng. Sci. 26 (1986) 63.
R. A. Pearson and A. F. Yee, J. Mater. Sci. 21 (1986) 2475.
C. G. Delides, D. Hayward, R. A. Pethrick and A. S. Vatalis, J. Appl. Polym. Sci. 47 (1993) 2037.
A. J. Kinloch and D. L. Hunston, J. Mater. Sci. Lett. 6 (1987) 131.
S. Hotiuchi, A. C. Street, T. Ougizawa and T. Kitano, Polymer 35 (1994) 5283.
D. Verchere, J. P. Pascault, H. Sautereau, S. M. Moschiar, C. C. Riccardi and R. J. J. Williams, J. Appl. Polym. Sci. 43 (1991) 293.
I. Mondragon, I. Quintard and C. B. Bucknall, Plast. Rubb. Comp. Proc. Applic. 23 (1995) 331.
F. Fdez Nograro, A. Valea, R. Llano-Ponte and I. Mondragon, Eur. Polym. J. 32 (1996) 257.
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Ormaetxea, M., Forcada, J., Mugika, F. et al. Ultimate properties of rubber and core-shell modified epoxy matrices with different chain flexibilities. Journal of Materials Science 36, 845–852 (2001). https://doi.org/10.1023/A:1004826529065
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DOI: https://doi.org/10.1023/A:1004826529065