The PEI Localization Effect on the Impact Properties of PEI toughened Carbon/Epoxy Composites

Seunghan Shin; Jyongsik Jang; Jyong Sup Shim

Journal of Industrial and Engineering Chemistry, Vol.5, No.3, 240-246, September, 1999

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The PEI Localization Effect on the Impact Properties of PEI toughened Carbon/Epoxy Composites

Seunghan Shin, Jyongsik Jang^†, and Jyong Sup Shim

School of Chemical Engineering, Seoul National University, Seoul 151-742 Korea

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The impact properties of carbon/epoxy composites as a function of PEI content were investigated by means of a driven dart impact test. The impact properties of PEI toughened carbon/epoxy composites were enhanced with increasing the PEI content. This was mainly due to the suppression of matrix cracking by PEI particles. Although the same amount of PEI was used, the mechanical properties of carbon/epoxy composites were varied by the PEI localization. When the PEI toughened layer was located at the opposite side of impact point, the total impact energy of carbon/epoxy composites showed maximum value due to the easy deformation of PEI toughened layer. In addition, the flexural strengths of carbon/epoxy composites also depended on the PEI localization effect.

Keywords:carbon fiber;polymer-matrix composites;impact behavior;fractography

[References]

Fitzer E, Carbon Fiber and Their Composites, E. Fitzer, Ed., pp. 3-45, Springer-Verlag, Berlin (1985)
Delmonte J, Technology of Carbon and Graphite Fiber Composites, pp. 337-369, Van Nostrand Reinhold Company, New York (1981)
Chung DDL, Carbon Fiber Composites, pp. 85-123, Butterworth-Heinemann, MA (1994)
Atkins AG, J. Mater. Sci., 10, 819 (1975)
Hancox NL, Wells H, Fiber Sci. Technol., 10, 9 (1977)
Piggott MR, Polym. Compos., 8, 291 (1987)
Manders PW, Bader MG, J. Mater. Sci., 16, 2233 (1981)
Sohn MS, Hu XZ, Compos. Sci. Technol., 52, 439 (1994)
Cantwell WJ, Morton J, Composites, 22, 347 (1991)
Kim J, Baillie C, Poh P, Mai YW, Compos. Sci. Technol., 43, 283 (1992)
Garg AC, Mai YW, Compos. Sci. Technol., 31, 179 (1988)
Garg AC, Mai YW, Compos. Sci. Technol., 31, 225 (1988)
Jang BZ, Liau JY, Hwang LR, Shih WK, J. Reinf. Plast. Compos., 9, 314 (1990)
Raghava RS, J. Polym. Sci. B: Polym. Phys., 25, 1017 (1987)
Raghava RS, J. Polym. Sci. B: Polym. Phys., 26, 65 (1988)
Woo EM, Chen JS, Polym. Eng. Sci., 35(2), 129 (1995)
McGrail PT, Jenkins SD, Polymer, 34, 677 (1993)
Woo EM, Mao KL, Polym. Compos., 17, 799 (1966)
Joshi SP, Sun CT, J. Comp. Mater., 19, 51 (1985)
Liu D, Malvern LE, J. Comp. Mater., 21, 594 (1987)
Jang JS, Shin SH, Polymer, 36(6), 1199 (1995)
Liu S, Chang FK, J. Comp. Mater., 28, 940 (1994)
Jordan WM, Bradley WL, Moulton RJ, J. Comp. Mater., 23, 923 (1989)
Ye L, Compos. Sci. Technol., 33, 257 (1988)
Strait LH, Karasek ML, Amateau MF, J. Comp. Mater., 26, 1725 (1992)

[Referenced By]

[Related Articles]

[1] Fitzer E, Carbon Fiber and Their Composites, E. Fitzer, Ed., pp. 3-45, Springer-Verlag, Berlin (1985)

[2] Delmonte J, Technology of Carbon and Graphite Fiber Composites, pp. 337-369, Van Nostrand Reinhold Company, New York (1981)

[3] Chung DDL, Carbon Fiber Composites, pp. 85-123, Butterworth-Heinemann, MA (1994)

[4] Atkins AG, J. Mater. Sci., 10, 819 (1975)

[5] Hancox NL, Wells H, Fiber Sci. Technol., 10, 9 (1977)

[6] Piggott MR, Polym. Compos., 8, 291 (1987)

[7] Manders PW, Bader MG, J. Mater. Sci., 16, 2233 (1981)

[8] Sohn MS, Hu XZ, Compos. Sci. Technol., 52, 439 (1994)

[9] Cantwell WJ, Morton J, Composites, 22, 347 (1991)

[10] Kim J, Baillie C, Poh P, Mai YW, Compos. Sci. Technol., 43, 283 (1992)

[11] Garg AC, Mai YW, Compos. Sci. Technol., 31, 179 (1988)

[12] Garg AC, Mai YW, Compos. Sci. Technol., 31, 225 (1988)

[13] Jang BZ, Liau JY, Hwang LR, Shih WK, J. Reinf. Plast. Compos., 9, 314 (1990)

[14] Raghava RS, J. Polym. Sci. B: Polym. Phys., 25, 1017 (1987)

[15] Raghava RS, J. Polym. Sci. B: Polym. Phys., 26, 65 (1988)

[16] Woo EM, Chen JS, Polym. Eng. Sci., 35(2), 129 (1995)

[17] McGrail PT, Jenkins SD, Polymer, 34, 677 (1993)

[18] Woo EM, Mao KL, Polym. Compos., 17, 799 (1966)

[19] Joshi SP, Sun CT, J. Comp. Mater., 19, 51 (1985)

[20] Liu D, Malvern LE, J. Comp. Mater., 21, 594 (1987)

[21] Jang JS, Shin SH, Polymer, 36(6), 1199 (1995)

[22] Liu S, Chang FK, J. Comp. Mater., 28, 940 (1994)

[23] Jordan WM, Bradley WL, Moulton RJ, J. Comp. Mater., 23, 923 (1989)

[24] Ye L, Compos. Sci. Technol., 33, 257 (1988)

[25] Strait LH, Karasek ML, Amateau MF, J. Comp. Mater., 26, 1725 (1992)