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Improvement of Manufacturing Technology for Ultrastrong and High-Modulus Carbon Fibres

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Fibre Chemistry Aims and scope

Abstract

1. The quality of CF, their strength and modulus of elasticity in particular, can be increased by the following methods: reducing the porosity of the initial PAN fibres by selecting the optimum conditions for spinning, plasticization drawing, finishing, and drying; decreasing the nonuniformity of the fibre diameter due to suppression of deformation resonance during spinning by selecting the jet formation and hardening conditions; decreasing the fibril and crystallite size by reducing the precipitator and solvent concentration gradient in the precipitation zone (spinning into mild baths); creating optimum conditions for mesophase self-ordering of the material at 450–550° C during precarbonization; increasing the cohesive energy by increasing the density to 1.8–2.1 g/cm3. 2. Replacing convective tempering of PAN twists in thermooxidative treatment by conductive tempering reduces the treatment time by 3–4 times.

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Authors and Affiliations

  1. LIRSOT LLC, Mytishchi, Russia

    M. B. Radishevskii, A. T. Serkov, G. A. Budnitskii, V. A. Medvedev & L. A. Zlatoustova

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  1. M. B. Radishevskii
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  2. A. T. Serkov
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  3. G. A. Budnitskii
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  4. V. A. Medvedev
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  5. L. A. Zlatoustova
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Translated from Khimicheskie Volokna, No. 5, pp. 11–15, September–October, 2005.

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Radishevskii, M.B., Serkov, A.T., Budnitskii, G.A. et al. Improvement of Manufacturing Technology for Ultrastrong and High-Modulus Carbon Fibres. Fibre Chem 37, 327–331 (2005). https://doi.org/10.1007/s10692-006-0003-6

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  • DOI: https://doi.org/10.1007/s10692-006-0003-6

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