Startseite High Shear Processing of (PP/EPR)/Silica Nanocomposites: Improvement of Morphology and Properties
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High Shear Processing of (PP/EPR)/Silica Nanocomposites: Improvement of Morphology and Properties

  • M. Louizi , V. Massardier , F. Mélis , P. Alcouffe und P. Cassagnau
Veröffentlicht/Copyright: 1. März 2014
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International Polymer Processing
Aus der Zeitschrift International Polymer Processing Band 29 Heft 1

Abstract

The aim of this article is to upgrade the performance of polypropylene/ethylene propylene rubber (PP/EPR) blends by addition of hydrophobic nanosilica (SiR805) and using “high shear processing technology”. The morphological developments, mechanical and rheological properties of these composites were investigated as a function of processing conditions. High shear processing has proved to be an efficient process to decrease the size of the dispersed phase (EPR) up to 300 nm and to disperse finely nanosilica particles to less than 30 nm especially at 800 min−1. Moreover, the morphology stability of the nanocomposite is ascribed to the formation of a core shell structure (EPR nodules = core; nano-silica = shell) and selective location of nanosilica at the interface. More importantly, this core-shell structure is favoured to enhance the impact strength of the (PP/EPR)/3 wt% SiR805 nanocomposite. In agreement to the obtained morphology, the improvement (about 60 %) of elongation at break attests a good adhesion between phases due to high shear effect as highlighted by viscoelastic properties. Therefore, high shear processing technology has proved to be a relevant method to prepare nanocomposites with high performances without adding any additive and offers new perspectives for recycling and lightening structures.

* Mail address: Valerie Massardier, INSA de Lyon, CNRS UMR 5223, Ingénierie des Matériaux Polymères, Villeurbanne, F-69622 Lyon, France E-mail:

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Received: 2013-05-20
Accepted: 2013-09-09
Published Online: 2014-03-01
Published in Print: 2014-03-28

© 2014, Carl Hanser Verlag, Munich

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Invited Articles
  4. The Effect of Molecular Parameters on the Thermal Behavior of Recycled and Virgin Polyamides and Their Glass Fiber Composites
  5. Carbon Nanotube Conductive Networks through the Double Percolation Concept in Polymer Systems
  6. Application of the Experimental Results to the Modified Halpin-Tsai Micromechanical Model to Evaluate the Clay Dispersion in Clay-Reinforced Polyethylene Nanocomposites
  7. Influence of Solvent Washing and Soxhlet Extraction on the Thermal Stability of Organically Modified Layered Silicates
  8. Effect of Screw Rotation Speed on the Properties of Polycarbonate/Vapor-Grown Carbon Fiber Composites Prepared by Melt Compounding
  9. Simulation of Co-Rotating Twin Screw Extrusion Process Subject to Pressure-Dependent Wall Slip at Barrel and Screw Surfaces: 3D FEM Analysis for Combinations of Forward- and Reverse-Conveying Screw Elements
  10. Preparation of Polymer-Clay Nanocomposites by Melt Mixing in a Twin Screw Extruder: Using On-Line SAOS Rheometry to Assess the Level of Dispersion
  11. Residence Time Distribution in a High Shear Twin Screw Extruder
  12. PVDF/Carbonnanotubes/Nanoclay Composites for Piezoelectric Applications
  13. Viscoelastic and Electrical Properties of Carbon Nanotubes Filled Poly(butylene succinate)
  14. Sealability and Seal Characteristics of PE/EVA and PLA/PCL Blends
  15. Effects of Polymer Viscosity and Nanofillers on Morphology of Nanofibers Obtained by a Gas Jet Method
  16. Modeling of the Torque Requirements for the Mixing and Dispersion of Silica into Rubber
  17. High Shear Processing of (PP/EPR)/Silica Nanocomposites: Improvement of Morphology and Properties
  18. An Overview of Molten Polymer Drawing Instabilities
  19. PPS News
  20. PPS News
  21. Seikei-Kakou Abstracts
  22. Seikei-Kakou Abstracts
https://doi.org/10.3139/217.2819

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Invited Articles
  4. The Effect of Molecular Parameters on the Thermal Behavior of Recycled and Virgin Polyamides and Their Glass Fiber Composites
  5. Carbon Nanotube Conductive Networks through the Double Percolation Concept in Polymer Systems
  6. Application of the Experimental Results to the Modified Halpin-Tsai Micromechanical Model to Evaluate the Clay Dispersion in Clay-Reinforced Polyethylene Nanocomposites
  7. Influence of Solvent Washing and Soxhlet Extraction on the Thermal Stability of Organically Modified Layered Silicates
  8. Effect of Screw Rotation Speed on the Properties of Polycarbonate/Vapor-Grown Carbon Fiber Composites Prepared by Melt Compounding
  9. Simulation of Co-Rotating Twin Screw Extrusion Process Subject to Pressure-Dependent Wall Slip at Barrel and Screw Surfaces: 3D FEM Analysis for Combinations of Forward- and Reverse-Conveying Screw Elements
  10. Preparation of Polymer-Clay Nanocomposites by Melt Mixing in a Twin Screw Extruder: Using On-Line SAOS Rheometry to Assess the Level of Dispersion
  11. Residence Time Distribution in a High Shear Twin Screw Extruder
  12. PVDF/Carbonnanotubes/Nanoclay Composites for Piezoelectric Applications
  13. Viscoelastic and Electrical Properties of Carbon Nanotubes Filled Poly(butylene succinate)
  14. Sealability and Seal Characteristics of PE/EVA and PLA/PCL Blends
  15. Effects of Polymer Viscosity and Nanofillers on Morphology of Nanofibers Obtained by a Gas Jet Method
  16. Modeling of the Torque Requirements for the Mixing and Dispersion of Silica into Rubber
  17. High Shear Processing of (PP/EPR)/Silica Nanocomposites: Improvement of Morphology and Properties
  18. An Overview of Molten Polymer Drawing Instabilities
  19. PPS News
  20. PPS News
  21. Seikei-Kakou Abstracts
  22. Seikei-Kakou Abstracts
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