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Montmorillonite Co-intercalated with Octadecylamine and Stearic Acid by Low Temperature Melting and its Influence on PP Nanocomposites

  • D. Merinska , M. Chmielová , A. Kalendova , Z. Weiss , P. Capkova and J. Šimoník
Published/Copyright: June 6, 2013
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International Polymer Processing
From the journal International Polymer Processing Volume 18 Issue 2

Abstract

Organically modified Na-montmorillonite (MMT) samples were prepared by co-intercalation of octadecylamine (ODA) and stearic acid (STA) using a low-temperature melting procedure A blend of MMT and ODA (with the ratio 1: 0.5) was stirred for one minute at 80°C in a laboratory mixer and then different amount of STA (weight ratios of MMT + ODA: STA = 1 : 0.3 and 1 : 1) were added and stirred for another five minutes. The resulting mixture was annealed at the same temperature for one hour. X-ray diffraction (XRD) powder patterns of two co-intercalated samples contain a non-regular set of d spacings of basal diffractions. The first basal diffraction with d = 4.8 nm probably gives evidence for prevalent bilayer molecular arrangement in the interlayer and the non-regular set of d spacings of basal diffractions indicates possible mixed-layer interstratification and/or disorder in the bilayer arrangement of the interlayer space. The set of basal diffractions in the XRD patterns of co-intercalated samples significantly differs from the set of basal diffractions in the patterns of the samples intercalated by only ODA or STA. XRD patterns of Na-montmorillonite sample intercalated with ODA (in the ratio of MMT: ODA = 1:0.5) and with STA (in the ratio of MMT: STA = 1: 1) contain broadening peaks. Polypropylene (PP) nanocomposite samples were prepared by mixing MMT modified in the described mode into the PP matrix. To improve the PP affinity to intercalated MMT, maleic anhydride modified PP as a compatibilizer was used. The level of PP nanocomposites exfoliation was evaluated by XRD technique. The influence of the nanofiller on mechanical properties was measured by tensile tests, and an improvement of mechanical properties was noticed.

* Mail address: J. Šimoník, Dept. of Polymer Materials and Technology, Faculty of Technology, Thomas Bata University, 76272 Zlín, Czech Republic
Received: 2002-12-2
Accepted: 2003-1-23
Published Online: 2013-06-06
Published in Print: 2003-05-01

© 2003, Carl Hanser Verlag, Munich

Articles in the same Issue

  1. Editorial
  2. Fourteenth in a Series: Heinz List and his Family of Continuous Mixing Machines
  3. Screw Extrusion
  4. Influence of Non-Newtonian Behaviour on the Processing Characteristics of Wall-slipping Materials
  5. Neural Network Approach to Density Control of Rigid PVC Foam in Extrusion Process
  6. Investigation of Melting Phenomena in Modular Co-rotating Twin Screw Extrusion
  7. Mixing and Compounding
  8. Montmorillonite Co-intercalated with Octadecylamine and Stearic Acid by Low Temperature Melting and its Influence on PP Nanocomposites
  9. Analysis and Optimization of Kenics Static Mixers
  10. Electret-thermal Analysis of Polymer Blends
  11. Effects of Zinc Fatty Acids on Improved Polymer Processing for Critical Extrusions
  12. Flexible Sheet Molding Compound (SMC) Using Aliphatic Polyester as Cross Linker
  13. Co-Extrusion
  14. Investigation of the Interfacial Instabilities in the Coextrusion Flow of PE and PS
  15. Film
  16. Radiant Heating of Plastics: Application to Film Blowing Processes
  17. Injection Molding
  18. Measurement and Prediction of Temperature Distribution in an Injection Molding Cavity
  19. A Study of Processing Conditions on the Properties of Diffraction Optical Elements by Injection/Compression Molding Process
  20. Flow Behavior of Sandwich Injection Molding in Sequential and Simultaneous Injection
  21. Rotational Molding
  22. Rotational Moulding and Powder Processing of Natural Fibre Reinforced Thermoplastics
https://doi.org/10.3139/217.1729

Articles in the same Issue

  1. Editorial
  2. Fourteenth in a Series: Heinz List and his Family of Continuous Mixing Machines
  3. Screw Extrusion
  4. Influence of Non-Newtonian Behaviour on the Processing Characteristics of Wall-slipping Materials
  5. Neural Network Approach to Density Control of Rigid PVC Foam in Extrusion Process
  6. Investigation of Melting Phenomena in Modular Co-rotating Twin Screw Extrusion
  7. Mixing and Compounding
  8. Montmorillonite Co-intercalated with Octadecylamine and Stearic Acid by Low Temperature Melting and its Influence on PP Nanocomposites
  9. Analysis and Optimization of Kenics Static Mixers
  10. Electret-thermal Analysis of Polymer Blends
  11. Effects of Zinc Fatty Acids on Improved Polymer Processing for Critical Extrusions
  12. Flexible Sheet Molding Compound (SMC) Using Aliphatic Polyester as Cross Linker
  13. Co-Extrusion
  14. Investigation of the Interfacial Instabilities in the Coextrusion Flow of PE and PS
  15. Film
  16. Radiant Heating of Plastics: Application to Film Blowing Processes
  17. Injection Molding
  18. Measurement and Prediction of Temperature Distribution in an Injection Molding Cavity
  19. A Study of Processing Conditions on the Properties of Diffraction Optical Elements by Injection/Compression Molding Process
  20. Flow Behavior of Sandwich Injection Molding in Sequential and Simultaneous Injection
  21. Rotational Molding
  22. Rotational Moulding and Powder Processing of Natural Fibre Reinforced Thermoplastics
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