Scanning electron microscopy and x-ray diffraction analysis are used to study the morphology of several aramid and polyimide fibers developed in Russia and to determine their strain-strength characteristics. It is shown that the supermolecular structure of the fiber in large part determines the character of its interaction with the matrix and behavior during failure of the fiber composite (FCP). In the case of aramid fibers, composite failure is accompanied by intensive fibrillation leading to lamination on a microscopic scale and a deterioration in the service characteristics of the composite. The stability of the investigated polyimide fibers against fibrillation and microlamination, in combination with good heat resistance, makes them promising as reinforcing materials for FCPs.
This is a preview of subscription content, log in to check access.
Buy single article
Instant access to the full article PDF.
Price includes VAT for USA
Subscribe to journal
Immediate online access to all issues from 2019. Subscription will auto renew annually.
This is the net price. Taxes to be calculated in checkout.
S. Kumar, “Structure and properties of high performance polymeric and carbon fibers. Overview,” SAMPE Quarterly., January, 3–8 (1989).
J. Kalantar and L. T. Drzal, “The bonding mechanism of aramid fibres to epoxy matrices. Pt 1; Pt 2,” J. Mater. Sci.,25, 4186–4193 (Pt 1); 4194–4202 (Pt 2).
K. E. Perepelkin, Structure and Properties of Fibers [in Russian], Khimiya, Moscow (1985).
G. I. Kudryavtsev et al., Chemical Fibers [in Russian], Khimiya, Moscow (1984).
A. Mittelman and I. Roman, “Tensile properties of real unidirectional Kevlar/epoxy composites,” Composites,21, No. 1, 63–69 (1990).
S. L. Bazhenov, V. V. Kozey, and A. A. Berlin, “Compression fracture of organic fibre reinforced plastics,” J. Mater. Sci.,24, 4509–4515 (1989).
R. J. Young and P. P. Ang, “Relationship between structure and mechanical properties in high-modulus poly(2.5(6)-benzoxazole) (ABPBO) fibres,” Polymer,33, No. 5, 975–982 (1992).
F. J. McGarry and J. E. Moalli, “Mechanical behavior of rigid rod polymer fibres,” Pt 1, Pt 2,” Ibid.,,32, No. 10, 1811–1820 (1991).
A. A. Konkin (editor), Heat-Resistant and Incombustible Fibers [in Russian], Khimiya, Moscow (1978).
S. Z. D. Cheng, Z. Wu, M. Eashoo, S. L. Hsu, and F. W. Harris, “A high-performance aromatic polyimide fibre,” Polymer,32, No. 10, 1803–1810 (1991).
T. E. Sukhanova, L. Lednicky, J. Urban, Y. G. Baklagina, G. M. Mikhailov, and V. V. Kudriavtsev, “Morphology of melt crystallized polypropylene in the presence of polyimide fibres.” J. Mater. Sci.,30, 2201–2214 (1995).
C. Y.-C. Lee and U. Santhosh, “The role of the fibrillar structure in the compressive behavior of rigid-rod polymeric fibers,” Polym. Eng. Sci.,33, No. 14, 907–912 (1993).
B. Z. Jang, “Control of interfacial adhesion in continuous carbon and Kevlar fiber reinforced polymer composites,” Composite Sci. Technology,44, 333–349 (1992).
H. Jahankhani and C. Galiots, “Interfacial studies on Kevlar 49/epoxy system in tension and compression,” Proc. Intern. Conf. “Interface in Polymer, Ceramic, and Metal Matrix Composites,” Elsevier Sci. Publ. Co. (1988), pp. 107–121.
V. V. Vasil'ev and Yu. M. Tarnopol'skii (editors), Composite Materials: Handbook [in Russian], Mashinostroenie, Moscow (1990).
B. A. Zaitsev, G. I. Khramova, T. S. Tsygankova, R. F. Kiseleva, L. A. Laius, M. I. Bessonov, M. F. Lebedeva, and S. K. Zakharov, “Rolivsans — new binders for heat-resistant and high-strength reinforced composites,” Mekhanika Kompozitnykh Materialov, No. 5, 775–778 (1982).
Yu. G. Baklagina, V. P. Sklizkova, G. M. Mikhailov V. V. Kudryavtsev, T. E. Sukhanova, and A. V. Sidorovich, “Structure and properties of fiber-forming polyimides,” Izv. Akad. Nauk SSSR,55, No. 9, 1766–1770 (1991).
T. Ohsawa, A. Nakayama, M. Miwa, and A. Hasegawa, “Temperature dependence of critical fiber length for glass-reinforced thermosetting resins,” J. Appl. Polym. Sci.,22, 3202–3212 (1978).
El. M. Asloun, M. Nardin, and J. Schultz, “Stress transfer in single-fibre composites: effect of adhesion, elastic modulus of fibre and matrix and polymer chain mobility,” J. Mater. Sci.,24, 1835–1844 (1989).
B. W. Rosen, “Tensile failure of fibrous composites,” AIAA J., No. 2, 1985–1994 (1964).
C. Zweben, “Tensile failure of composites,” Ibid.,, No.12, 2325–2331 (1968).
C. Zweben and B. A. Rosen, “A statistical theory of material strength with application to composite materials,” J. Mech. Phys. Solids,18, No. 3, 189–206 (1970).
Submitted for the Tenth International Conference on the Mechanics of Composites (Riga, April 1998).
Institute of High-Molecular-Weight Compounds of the Russian Academy of Sciences (St. Petersburg, Russia) and the “Khimvolokno” Scientific-Industrial Association (Mytishchi, Russia). Translated from Mekhanika Kompozitnykh Materialov, Vol. 33, No. 5, 656–669, September–October, 1997.
About this article
Cite this article
Yudin, V.E., Sukhanova, T.E., Vylegzhanina, M.É. et al. Effect of the morphology of the organic fibers on the mechanical behavior of composites. Mech Compos Mater 33, 465–474 (1997). https://doi.org/10.1007/BF02256902
- Electron Microscopy
- Scan Electron Microscopy
- Mechanical Behavior
- Diffraction Analysis