Abstract
The structure and chemical compositions of an impact-modified nylon 66 are investigated using transmission electron microscopy (TEM), infrared spectroscopy, optical microscopy, differential scanning calorimetry (DSC), and dynamic mechanical spectroscopy. The morphology is found to contain spherical domains of a partially-crosslinked EPDM rubbery phase which are embedded within an N66 matrix. These spherical domains are 0.2 to 0.8 μm in diameter and comprise approximately 20 vol % of the blend; the N66 matrix in the toughened polymer contains spherulites which are 1 μm in diameter whereas the neat N66 solid contains 10 μm diameter spherulites. The crystalline fraction in N66 is found to be relatively independent of rubber content. The dynamic modulus is found to be more strongly affected by the addition of the rubbery phase than by changes in the morphology of the nylon.
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References
R. W. Hertzberg and J. A. Manson, “Fatigue of Engineering Plastics” (Academic Press, New York, 1980).
R. W. Hertzberg, M. D. Skibo and J. A. Manson, ASTM STP 700 (American Society for Testing and Materials, Philadelphia, 1980) p. 49.
M. T. Hahn, PhD Dissertation, Lehigh University, Bethlehem. Pa. (1982).
M. T. Hahn, R. W. Hertzberg and J. A. Mason, “FCP Response of Impact-Modified Nylon 66: Effect of Water” (1983) manuscript in preparation.
B. N. Epstein, US Patent 4174358 (November 1979) (to E. I. duPont de Nemours and Co.).
P. E. Bretz, PhD Dissertation, Lehigh University, Bethlehem, Pa. (1980).
P. E. Bretz, R. W. Hertzberg, J. A. Manson and A. Ramirez, ACS Symposium Series No. 127 (1980) p. 531.
R. C. Weast (ed), “Handbook of Chemistry and Physics”, 48th edn. (Chemical Rubber Co., Clevelend, Ohio, 1967).
E. I. duPont de Nemours and Co., “Zytel Design Handbook” (Wilmington, Delaware, 1980).
K. Kato, Polym. Lett. 4 (1966) 35.
Idem, Jpn. Plast. 2 (1968) 6.
E. L. Borg, “Rubber Technology”, 2nd edn. edited by M. Morton (Van Nostrand Reinhold, New York, 1973) p. 223.
M. I. Kohan, “Nylon Plastics” (Wiley-Interscience, New York, 1973).
A. E. Woodward, J. M. Crissman and J. A. Sauer, J. Polym. Sci. 44 (1960) 23.
J. A. Manson and L. H. Sperling, “Polymer Blends and Composites” (Plenum Press, New York, 1976).
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Hahn, M.T., Hertzberg, R.W. & Manson, J.A. Characterization of an impact-modified nylon 66. J Mater Sci 18, 3551–3561 (1983). https://doi.org/10.1007/BF00540727
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DOI: https://doi.org/10.1007/BF00540727