Influence of heat treatment on the structure and properties of polyamide 6/ halloysite nanocomposites

Open access


The nanocomposites of polyamide 6 (PA6) with halloysite nanotubes (HNT) were prepared by extrusion using co-rotating twin-screw extruder and then the standard test specimens were injected using a screw injection moulding machine. The content of HNT in the nanocomposites was 5 or 10 weight percent. The heat treatment of unmodified PA6 and nanocomposites was carried out in silicone oil in temp. 150±2°C. The samples were annealed for 3 hours and then cooled at a rate of 4 K/min. Differential scanning calorimetry (DSC) causes annealing to increase the crystallinity of the polyamide matrix. After an annealing treatment a nanocomposite with better mechanical properties was obtained. Halloysite nanotubes in polyamide matrix play the role of a nucleating agent.

If the inline PDF is not rendering correctly, you can download the PDF file here.

  • [1] Xie S. Zhang S. Wang F. Liu H. Yang M. Influence of annealing treatment on the heat distortion temperature of nylon-6/montmorillonite nanocomposites Polym. Eng. Sci. 2005 vol. 45 no. 9 p. 1248-1253.

  • [2] Kelar K.Modyfikacja polimerów Politechnika Poznańska Publishing 1992.

  • [3] Krause B. Schneider C. Boldt R. Weber M. Localization of carbon nanotubes in polyamide 6 blends with non-reactive and reactive rubber Polymer 2014 vol. 55 no 13 p. 3062-3067.

  • [4] Li C. Liu J. Qu X. Yang Z. A general approach toward halloysite-based composite nanotubes J. Appl. Polym. Sci. 2009 vol. 112 no 3 p. 2647-2655.

  • [5] Lecouvet B. Sclavons M. Bourbigot S. Bailly C. Towards scalable production of polyamide 12/halloysite nanocomposites via water-assisted extrusion: mechanical modeling thermal and fire properties Polymers for Advanced Technologies 2014 vol. 25 no 2 p. 137-151.

  • [6] Ning N. Yin Q. Luo F. Zhang Q. Du R. Fu Q. Crystallization behavior and mechanical properties of polypropylene/halloysite composites Polymer 2007 vol. 48 no 25 p. 7374-7384.

  • [7] Fouda I. M. Oraby A. H. Opto-thermal properties of fibers: 6. Evaluation of some optical structural parameters obtained due to annealing nylon 6 fiber Polymer Testing 1999 vol. 18 no 4 p. 235-247.

  • [8] Hu X. Zhao X. Effects of annealing (solid and melt) on the time evolution of polymorphic structure of PA6/silicate nanocomposites Polymer 2004 vol. 45 no 11 p. 3819-3825.

  • [9] Liu X. Wu Q. Phase transition in nylon 6/clay nanocomposites on annealing Polymer 2002 vol. 43 no. 6 p.1933-1936.

  • [10] Fornes T. D. Paul D. R. Crystallization behavior of nylon 6 nanocomposites Polymer 2003 vol. 44 no 14 p. 3945-3961.

  • [11] Żuchowska D. Polimery konstrukcyjne Warszawa WNT 2000.

  • [12] Kelar K. Technologia wytwarzania części maszyn z poliamidu 6 modyfikowanego nanocząstkami monography N 83-7143-239-9 Poznań 2006.

  • [13] Guo B. Zou Q. Lei Y. Du M. Liu M. Jia D. Crystallization behavior of polyamide 6/halloysite nanotubes nanocomposites Thermochimica Acta 2009 vol. 484 no 1-2. p. 48 - 56.

Journal information
All Time Past Year Past 30 Days
Abstract Views 0 0 0
Full Text Views 79 79 10
PDF Downloads 58 58 6