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Structural and Rheological Properties as a Function of Mixing Energy for Polymer/Layered Silicate Nanocomposites

  • P. Médéric , T. Aubry and T. Razafinimaro
Published/Copyright: April 6, 2013
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Abstract

Polyamide/organoclay nanocomposites have been prepared via direct melt intercalation in an internal mixer at 2.5% volume fraction, under various processing conditions. The influence of the melt mixing conditions on the structure and on the oscillatory and steady shear rheological properties of PA-12 layered silicate nanocomposites has been studied. Both structural properties and melt state material properties of nanocomposites were shown to exhibit similar trends when studied as a function of the specific mixing energy. Low frequency storage and loss moduli, but also yield stress and low-shear first normal stress difference were shown to increase up to a critical value of this specific mixing energy, and to level off above this value.


Mail address: Pascal Médéric, Université Européenne de Bretagne, LIMATB/Equipe Rhéologie, UFR Sciences et Techniques, 6 Avenue Victor Le Gorgeu, CS 93837, 29238 Brest Cedex 3, France. E-mail:

References

Alexandre, M., Dubois, P., “Polymer-layered Silicate Nanocomposites: Preparation, Properties and Uses of a New Class of Materials”, Mater. Sci. Eng.,: Reports, 28, 163(2000)10.1016/S0927-796X(00)00012-7Search in Google Scholar

Aubry, T., et al., “Rheological Investigation of the Melt State Elastic and Yield Properties of a Polyamide-12 Layered Silicate Nanocomposite”, J. Rheol., 49, 425440(2005)10.1122/1.1859791Search in Google Scholar

Bourbigot, S., et al., “Processing and Nanodispersion: A Quantitative Approach for Polylactide Nanocomposite”, Polymer Testing, 27, 210(2008)10.1016/j.polymertesting.2007.07.008Search in Google Scholar

Bousmina, M., et al., “Determination of Shear Rate and Viscosity from Batch Mixer Data”, J. Rheol., 43, 415434(1999)10.1122/1.551044Search in Google Scholar

Dennis, H. R., et al., “Effect of Melt Processing Conditions on the Extent of Exfoliation in Organoclay-based Nanocomposites”, Polymer, 42, 95139522(2001)10.1016/S0032-3861(01)00473-6Search in Google Scholar

Durmus, A., et al., “Linear Low Density Polyethylene (LLDPE)/Clay Nanocomposites. Part I: Structural Characterization and Quantifying Clay Dispersion by Melt Rheology”, Polymer, 48, 44924502(2007)10.1016/j.polymer.2007.05.074Search in Google Scholar

Eckel, D. F., et al., “Assessing Organo-clay Dispersion in Polymer Nanocomposites”, J. Appl. Polym. Sci., 93, 11101117(2004)10.1002/app.20566Search in Google Scholar

Fornes, T. D., et al., “Nylon 6 Nanocomposites: The Effect of Matrix Molecular Weight”, Polymer, 42, 99299940(2001), [Erratum, Polymer, 43, 2121–2122 (2002)] 10.1016/S0032-3861(01)00552-3Search in Google Scholar

Fornes, T. D., et al., “Effect of Organoclay Structure on Nylon 6 Nanocomposite Morphology and Properties”, Polymer, 43, 59155933(2002)10.1016/S0032-3861(02)00400-7Search in Google Scholar

Krause, B., et al., “Influence of Small Scale Melt Mixing Conditions on Electrical Resistivity of Carbon Nanotube-Polyamide Composites”, Compos. Sci. Technol.(2009)10.1016/j.compscitech.2008.07.007Search in Google Scholar

Krishnamoorti, R., Giannelis, E., “Rheology of End-tethered Polymer Layered Silicate Nanocomposites”, Macromolecules, 30, 40974102(1997)10.1021/ma960550aSearch in Google Scholar

Krishnamoorti, R., Yurekli, K., “Rheology of Polymer Layered Silicate Nanocomposites”, Curr. Opin. Colloid Interface Sci., 6, 464470(2001)10.1016/S1359-0294(01)00121-2Search in Google Scholar

Lertwimolnun, W., Vergnes, B., “Influence of Compatibilizer and Processing Conditions on the Dispersion of Nanoclay in a Polypropylene Matrix”, Polymer, 46, 34623471(2005)10.1016/j.polymer.2005.02.018Search in Google Scholar

Lertwimolnun, W., Vergnes, B., “Influence of Screw Profile and Extrusion Conditions on the Microstructure of Polypropylene/Organoclay Nanocomposites”, Polym. Eng. Sci., 47, 21002109(2007)10.1002/pen.20934Search in Google Scholar

Médéric, P., et al., “Talc filled Thermoplastic Composites: Melt Rheological Properties”, Applied Rheology, 13, 297304(2003)Search in Google Scholar

Médéric, P., et al., “Influence of Melt-blending Conditions on Structural, Rheological and Interfacial Properties of Polyamide-12 Layered Silicate Nanocomposites”, Polym. Eng. Sci., 46, 986994(2006)10.1002/pen.20587Search in Google Scholar

Modesti, M., et al., “Effect of Processing Conditions on Morphology and Mechanical Properties of Compatibilized Polypropylene Nanocomposites”, Polymer, 46, 1023710245(2005)10.1016/j.polymer.2005.08.035Search in Google Scholar

Picard, E., et al., “Barrier Properties of Nylon 6 Montmorillonite Nanocomposite Membranes Prepared by Melt Blending: Influence of the Clay Content and Dispersion State. Consequences on Modelling”, J. Membrane Sci., 292, 133144(2007)10.1016/j.memsci.2007.01.030Search in Google Scholar

Ray, S. S., Okamoto, M., “Polymer/Layered Silicate Nanocomposites: A Review From Preparation to Processing”, Prog. Polym. Sci., 28, 15391641(2003)10.1016/j.progpolymsci.2003.08.002Search in Google Scholar

Vaia, R. A., Giannelis, E. P., “Polymer Melt Intercalation in Organically-modified Layered Silicates: Model Predictions and Experiment”, Macromolecules, 30, 80008009(1997)10.1021/ma9603488Search in Google Scholar

Vanderhart, D. L., et al., “NMR Measurements Related to Clay-Dispersion Quality and Organic-modifier Stability in Nylon-6/Clay Nanocomposites”, Macromolecules, 34, 38193822(2001)10.1021/ma002089zSearch in Google Scholar

Wagener, R., Reisinger, T. J. G., “A Rheological Method to Compare the Degree of Exfoliation of Nanocomposites”, Polymer, 44, 75137518(2003)10.1016/j.polymer.2003.01.001Search in Google Scholar

Xie, W., et al., “Thermal Characterization of Organically Modified montmorillonite”, Thermochem. Acta, 367–368, 339350(2001a)10.1016/S0040-6031(00)00690-0Search in Google Scholar

Xie, W., et al., “Thermal Degradation Chemistry of Alkyl Quaternary Ammonium Montmorillonite”, Chem. Mater., 13, 29792990(2001b)10.1021/cm010305sSearch in Google Scholar

Zhu, L., Xanthos, M., “Effects of Process Conditions and Mixing Protocols on Structure of Extruded Polypropylene Nanocomposites”, J. Appl. Polym. Sci., 93, 18911899(2004)10.1002/app.20658Search in Google Scholar

Received: 2008-11-14
Accepted: 2009-03-24
Published Online: 2013-04-06
Published in Print: 2009-07-01

© 2009, Carl Hanser Verlag, Munich

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