Abstract
Polypyrrole (PPy) was deposited onto carbon fibers via continuous electrochemical deposition (ECD). Composites of PPy-deposited carbon fiber and epoxy were prepared. The thermal expansion coefficients of these materials were determined using either a thermal mechanical analyzer or an imbeded strain gauge. The results show that PPy has a negative thermal expansion coefficient while carbon fiber and epoxy have positive thermal expansion coefficients. The resulting composite has a smaller thermal expansion coefficient, higher interlaminar shear stress and a smaller critical fiber length than the composite using untreated carbon fiber. This suggests that the deposition of PPy can effect an improvement in the fiber-matrix interfacial bonding of the composite.
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References
L. Holliday and J. Robinson, J. Mat. Sci., 8, 301 (1973).
T. T. Wang and T. K. Kwei, J. Polym. Sci., 7, 889 (1969).
G. Marom and A. Weinberg, J. Mat. Sci., 10, 1005 (1975).
A. A. Fahmy and A. N. Ragai, J. App. Phys., 41, No. 13, Dec. (1970).
P. S. Theocaris, G. C. Papanicolaou and G. D. Spathis, Fiber Sci. Tech., 15, 187 (1981).
R. Simha, E. Papazoglou and F. H. J. Maurer, Polym. Compos. Dec., 10 (1989).
I. M. Low, J. Appl. Polym. Sci., 39, (1990).
T. Fujisawa, A. Tanaka, K. Hashimoto and M. Kobayashi, Am. Chem. Soc., Polym. Preprints, 20, 853 (1979).
J. A. King, D. A. Buttry and D. F. Adams, Polym. Compos., 14, 301 (1993).
A. F. Diaz and K. K. Kanazawa, J. Chem. Soc., Chem. Commun, 14, 635(1979).
A. F. Diaz and B. Hall, IBM J. Res. Dev., 27, 342 (1983).
H. T. Chiu, J. S. Lin and C. M. Huang, J. Appl. Electrochem., 22, 358 (1992).
H. T. Chiu, J. S. Lin and J. N. Shiau, J. Appl. Electrochem., 22, 522 (1992).
H. T. Chiu, J. S. Lin and C. M. Huang, J. Appl. Electrochem., 22, 528 (1992).
H. T. Chiu and J. S. Lin, J. Mat. Sci., 27, 319 (1992).
J. S. Lin, Polym. & Polym. Compos., accepted (1999).
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Lin, JS. Effect of polypyrrole deposition of carbon fiber on the thermal expansion of carbon fiber-epoxy composites. J Polym Res 6, 237–242 (1999). https://doi.org/10.1007/s10965-006-0093-0
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DOI: https://doi.org/10.1007/s10965-006-0093-0