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Compaction and Consolidation of Aramid and Composite Fibers. 2. Consolidation of Composite Fibers

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Abstract

The transverse compaction and consolidation of composite fibers obtained from blends of rigid-chain aromatic polyamides and a thermoplastic polycaproamide PA-6 are investigated with the aim to predict the fiber behavior during their compression and processing into plastics. Introduction of the aliphatic polyamide PA-6 into aramid fibers considerably increases their transverse compliance and promotes their sintering. A method for calculating the viscosity of the thermoplastic in the interfiber space from the ratio between the volumetric rate of compaction and the porosity of the material is proposed. It is found that the effective viscosity of the PA-6 melt, during its flow in the thin interfibrillar layers under compression, grows with decrease in its content in the composite fibers.

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Authors and Affiliations

  1. Institute of Petrochemical Synthesis, Russian Academy of Sciences, Moscow, Russia

    S. V. Kotomin & N. N. Avdeev

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  1. S. V. Kotomin
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  2. N. N. Avdeev
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Kotomin, S.V., Avdeev, N.N. Compaction and Consolidation of Aramid and Composite Fibers. 2. Consolidation of Composite Fibers. Mechanics of Composite Materials 39, 71–76 (2003). https://doi.org/10.1023/A:1022939622714

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  • DOI: https://doi.org/10.1023/A:1022939622714

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