Effect of Nano-Particles on Flow and Recovery of Polymer Nano-Composites in the Melt State
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H. M. Hassanabadi
Abstract
The effect of nano-particle geometry on flow and recovery of polymer melts based on ethylene vinyl acetate (EVA) was investigated. Two nano-particles, calcium carbonate (CaCO3) and montmorillonite clay, were used with concentrations between 2.5 and 15% by weight. First, by using small amplitude oscillatory shear and transient step shear tests, the linear and non-linear response of the nano-composites was studied. Then, to examine the structure recovery, the same behavior was studied on pre-sheared samples. The linear and non-linear data revealed that the effect of nano-particles in material flow is more important for anisometric particles which can be attributed to their ability to form a fractal structure controlling the rheological properties while spherical particles are not able to form such networks. Recovery experiments revealed that while nano-composites containing spherical particles have relatively similar response in subsequent tests, the rheological properties decreased significantly for platelet particles. The recovery results were also interpreted based on a filler-network mechanism and the reduction of the nano effect for anisometric particles was related to the breakdown of the filler network. These observations were validated by morphological investigations.
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© 2013, Carl Hanser Verlag, München
Articles in the same Issue
- Contents
- Contents
- Review Paper
- Recent Research Progress on Polymer Grafted Carbon Black and Its Novel Applications
- Regular Contributed Articles
- Fabrication of Electrospun Chitosan and Chitosan/Poly(ethylene oxide) Nanofiber Webs and Assessment of Their Antimicrobial Activity
- Effect of Nano-Particles on Flow and Recovery of Polymer Nano-Composites in the Melt State
- Differential Molding System for Micro Injection Molding of Thermoplastics
- The Effect of Shear Strain Amplitude and Loading Cycle on the Horizontal Characteristics of Fiber Reinforced Nanocomposite Elastomeric Seismic Isolators
- The Effect of Feeding Method and Compatibilizer on Nanoclay Partitioning and Microfibrillar Morphology Development in PP/PBT/Organoclay Blend Nanocomposite Fibers
- Effect of Hot Water and Water-carrying Agent on the Properties of Silane-water Crosslinked Linear Low Density Polyethylene
- Preparation and Characterization of Melamine Modified Urea-Formaldehyde Foam
- The Role of Organoclay on In-situ Microfibril Formation of Epoxy in Poly(butylene terephtalate) Nanocomposites
- Evaluation of Thermo-Mechanical and Wear Behavior of Short Carbon Fibre Vinyl-Ester Filled Homogenous and Their Functionally Graded Composites
- Factors Influencing the Warpage in In-Mold Decoration Injection Molded Composites
- Preparation and Characterization of CaCO3/High Density Polyethylene Composites with Various Shapes and Size of CaCO3
- Development of a Non-uniform Heating System for Micro Hot Embossing
- Processing of Thermally Stable Polymer Nanocomposites Reinforced Silicate Nanoparticles Based on N-trimellitylimido-L-phenyl alanine
- PPS-News
- PPS-News
- Seikei Kakou Abstracts
- Seikei Kakou Abstracts
Articles in the same Issue
- Contents
- Contents
- Review Paper
- Recent Research Progress on Polymer Grafted Carbon Black and Its Novel Applications
- Regular Contributed Articles
- Fabrication of Electrospun Chitosan and Chitosan/Poly(ethylene oxide) Nanofiber Webs and Assessment of Their Antimicrobial Activity
- Effect of Nano-Particles on Flow and Recovery of Polymer Nano-Composites in the Melt State
- Differential Molding System for Micro Injection Molding of Thermoplastics
- The Effect of Shear Strain Amplitude and Loading Cycle on the Horizontal Characteristics of Fiber Reinforced Nanocomposite Elastomeric Seismic Isolators
- The Effect of Feeding Method and Compatibilizer on Nanoclay Partitioning and Microfibrillar Morphology Development in PP/PBT/Organoclay Blend Nanocomposite Fibers
- Effect of Hot Water and Water-carrying Agent on the Properties of Silane-water Crosslinked Linear Low Density Polyethylene
- Preparation and Characterization of Melamine Modified Urea-Formaldehyde Foam
- The Role of Organoclay on In-situ Microfibril Formation of Epoxy in Poly(butylene terephtalate) Nanocomposites
- Evaluation of Thermo-Mechanical and Wear Behavior of Short Carbon Fibre Vinyl-Ester Filled Homogenous and Their Functionally Graded Composites
- Factors Influencing the Warpage in In-Mold Decoration Injection Molded Composites
- Preparation and Characterization of CaCO3/High Density Polyethylene Composites with Various Shapes and Size of CaCO3
- Development of a Non-uniform Heating System for Micro Hot Embossing
- Processing of Thermally Stable Polymer Nanocomposites Reinforced Silicate Nanoparticles Based on N-trimellitylimido-L-phenyl alanine
- PPS-News
- PPS-News
- Seikei Kakou Abstracts
- Seikei Kakou Abstracts