Abstract
The morphological properties of carbon fibre-reinforced PEEK (APC-2) laminates subjected to long-term thermal ageing and cycling treatments have been studied using differential scanning calorimetry and wide-angle X-ray diffraction techniques. This work sought provided a structural explanation for measured changes in mechanical properties. Annealing at 120 ° had no effect but significant changes in crystal content and crystal perfection occurred at 250 ° and 310 °C. At 250 °C, for short ageing periods, both crystal growth and perfection processes were observed. For longer ageing periods, there was a multiple increase in capital perfection. Initial ageing at 310 °C caused rapid crystal growth, but further ageing resulted in a reduction in measured crystal contents due to thermal degradation.
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P. Y. Jar, H. H. Kausch, W. J. Cantwell, P. Davies andH. Richard,Polym. Commun. 31 (1990) 444.
C. Y. Barlow, J. A. Peacock andA. H. Windle,Composites 21 (1980) 383.
P. Gebe, S. D. Hong, S. Chung andA. Gupta, in ASTM STP937, edited by N. J. Johnston, (American Society for Testing and Materials, Philadelphia, PA, 1987) pp. 342–357.
H. W. Starkweather andR. E. Brooks,J. Appl. Polym. Sci. 1 (1959) 236.
D. J. Blundell,Polymer 28 (1987) 2248.
P. J. Holdsworth andA. Turner-Jones,ibid. 12 (1971) 175.
D. J. Blundell andB. N. Osborn,ibid. 24 (1983) 953.
D. C. Bassett, R. H. Olley andI. A. M. Al Raheil,ibid. 29 (1988) 1745.
S. Z. D. Cheng, M.-Y. Cao andB. Wunderlich,Macromolecules 19 (1986) 1868.
M. Buggy andA. Carew,J. Mater. Sci. 29 (1994) in press.
D. J. Blundell, J. M. Chalmers, M. W. Mackenzie andW. F. Goskin,SAMPE Q. July (1985) 22.
P. Cebe andS. D. Hong,Polymer 27 (1986) 1183.
S. Fakirov, E. W. Fischer, R. Huffman andG. F. Schmidt,ibid. 18 (1977) 1121.
G. M. K. Ostberg andJ. C. Seferis,J. Appl. Polym. Sci. 33 (1987) 29.
A. Carew, PhD thesis, University of Limerick (1992).
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Buggy, M., Carew, A. The effect of thermal ageing on carbon fibre-reinforced polyetheretherketone (PEEK). J Mater Sci 29, 2255–2259 (1994). https://doi.org/10.1007/BF01154707
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DOI: https://doi.org/10.1007/BF01154707