Abstract
Curing reactions of the epoxy system consisting of a diglycidyl ether of bisphenol A (BADGE n=0) and m-xylylenediamine (m-XDA) were studied to calculate time-temperature-transformation (TTT) isothermal cure diagram for this system. Gel times were measured as a function of temperature using solubility test. Differential scanning calorimetry (DSC) was used to calculate the vitrification times. DSC data show a one-to-one relationship between T g and fractional conversion, a independent of cure temperature. As a consequence, T g can be used as a measure of conversion. The activation energy for the polymerization overall reaction was calculated from the gel times obtained using the solubility test (41.5 kJ mol-1). This value is similar to the results obtained for other similar epoxy systems. Isoconversion contours were calculated by numerical integration of the best fitting kinetic model.
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References
R. B. Prime, Thermal Characterization of Polymeric Materials, Ed. E. A. Turi, Academic Press, San Diego 1981.
G. Wisanrakkit and J. K. Gillham, J. Appl. Polym. Sci., 41 (1990) 2885.
J. K. Gillham, Polym. Eng. Sci., 26 (1986) 1429.
J. B. Enns and J. K. Gillham, J. Appl. Polym. Sci., 28 (1983) 2567.
H. Lee and K. Neville, Handbook of Epoxy Resin, McGraw-Hill, New York 1967.
C. A. May, Epoxy Resins: Chemistry and Technology, Marcel Dekker, New York 1988.
Perkin-Elmer Corp., Users Manual 1020 Series DSC-7 Thermal Analysis System, Norwalk, USA 1991.
S. L. Simon and J. K. Gillham, J. Appl. Polym. Sci., 46 (1992) 1245.
S. L. Simon and J. K. Gillham, J. Appl. Polym. Sci., 47 (1993) 461.
P. J. Flory, Chem. Rev., 39 (1946) 137.
G. L. Hagnaver, Chemorheology of Thermosetting Polymers, ACS Symposium Series 227, American Chemical Society, Washington, DC 1983.
J. M. Barton, D. C. L. Greenfield and K. A. Hodd, Polymer, 33 (1992) 1977.
P. A. Oyanguren and R. J. J. Williams, J. Appl. Polym. Sci., 47 (1993) 1361.
Lisardo NÚñez, J. Taboada, F. Fraga and M. R. NÚñez, J. Appl. Polym. Sci., 66 (1997) 1377.
J. M. Barton, Adv. Polym. Eng. Sci., 72 (1985) 111.
K. Horie, H. Hiura, M. Sawada, I. Mita and H. Kambe, J. Polym. Sci., Chem., Part A-1, 8 (1970) 1357.
S. P. Abuín, M. P. Pellín and L. NÚñez, J. Appl. Polym. Sci., 48 (1993) 905.
C. C. Ricardi, H. E. Adabbo and R. J. J. Williams, J. Appl. Polym. Sci., 29 (1984) 2481.
J. L. Han, K. H. Hsieh and W. Y. Chiu, J. Appl. Polym. Sci., 50 (1993) 1099.
S. P. Abuín, M. P. Pellín and L. NÚñez, J. Appl. Polym. Sci., 41 (1990) 2155.
M. R. Kamal, Polym. Eng. Sci., 14 (1974) 23.
C. C. Riccardi and R. J. J. Williams, J. Appl. Polym. Sci., 32 (1986) 3445.
A. C. Grillet, J. Galy, J. P. Pascault and I. Bardin, Polymer, 30 (1996) 2094.
J. P. Pascault and R. J. J. Williams, J. Polym. Sci., Polym. Phys., 28 (1990) 85.
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Núñez, L., Fraga, L., Núñez, M.R. et al. TTT Cure Diagram. Journal of Thermal Analysis and Calorimetry 70, 9–17 (2002). https://doi.org/10.1023/A:1020628911473
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DOI: https://doi.org/10.1023/A:1020628911473