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Effect of blend composition on the morphology and mechanical properties of microfibrillar composites

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Abstract

Various blend compositions of polyethyleneterphthalate (PET) and polyamide 6 (PA 6) were used to prepare microfibrillar composites (MFC's) in form of thin ribbons. Steps for preparation were: (1) blending, (2) extrusion, (3) fibrillation, and (4) isotropization. The latter step was performed at a temperature condition above the melting temperature of PA 6, but below that of PET. In this way PET microfibrils remained as reinforcing elements in the PA 6-matrix. Depending on the actual PET/PA 6 ratio, various fibril arrangements in terms of fibril length and uniformity of fibril distribution could be achieved. A reasonable improvement in mechanical properties was reached already at 30 wt. % PET in PA 6 which was in terms of tensile strength higher than a 30 wt. % short glass fiber filled PA 6 system.

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Author notes

  1. S. Fakirov

    Present address: Laboratory on Structure and Properties of Polymers, Sofia University, 1126, Sofia, Bulgaria

Authors and Affiliations

  1. Laboratory on Structure and Properties of Polymers, Sofia University, 1126, Sofia, Bulgaria

    M. Evstatiev

  2. Polymer Research Center, Chemical Engineering Department and TUBITAC Advanced Polymeric Materials Research Center, Bogazici University, 80815, Bebek-Istanbul, Turkey

    S. Fakirov

  3. Institut für Verbundwerkstoffe GmbH, University of Kaiserslautern, 67663, Kaiserslautern, Germany

    K. Friedrich

Authors
  1. M. Evstatiev
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  2. S. Fakirov
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  3. K. Friedrich
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Evstatiev, M., Fakirov, S. & Friedrich, K. Effect of blend composition on the morphology and mechanical properties of microfibrillar composites. Appl Compos Mater 2, 93–106 (1995). https://doi.org/10.1007/BF00569252

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  • DOI: https://doi.org/10.1007/BF00569252

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