Constitutive Modeling of Nonlinear Rheological Behavior of Carbon Nanotube-Filled Polypropylene Nanocomposites
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S. S. Pole
Abstract
The rheological behavior of multi-walled carbon nanotube (MWCNT)-filled polypropylene (PP) nanocomposites with different filler loadings was experimentally studied and simulated using constitutive modeling. Rheological behavior was characterized in small amplitude oscillatory shear (SAOS) flow, large amplitude oscillatory shear (LAOS) flow, startup of shear flow, steady shear flow, and stress relaxation after the imposition of a step shear strain. Virgin PP and PP with CNT loadings of 1, 3, and 5 wt% were used. The formation of a rheological percolation network was observed at these loadings. The Leonov and Simhambhatla-Leonov models were used to simulate the rheological behavior. In the linear region, the simulations provided good predictions of the experimental data for both the unfilled and filled PP. In the nonlinear region, the simulations also provided good results for the virgin PP and satisfactory results for the PP/1 wt%CNT nanocomposite under most flow conditions. However, for the other two nanocomposites the model showed mixed results.
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Articles in the same Issue
- Contents
- Editorial
- Special Issue for Musa R. Kamal
- Special issue contributions
- Constitutive Modeling of Nonlinear Rheological Behavior of Carbon Nanotube-Filled Polypropylene Nanocomposites
- Modeling Short-Range Interactions in Concentrated Newtonian Fiber Bundle Suspensions
- The Polymer Film Casting Process – An Overview
- Micro-Injection Molding of Polymer Nanocomposites Composition-Process-Properties Relationship
- Nanoclay Migration and the Rheological Response of PBAT/LDPE Blends
- Composites of Cysteamine Functionalised Graphene Oxide and Polypropylene
- Effect of Uniaxial Stretching on Molecular Orientation, Crystallinity and Oxygen Permeability of Ethylene Vinyl Alcohol
- Investigation of Microstructures and Air Permeability of Aerogel-Coated Textile Fabric Materials
- In Situ Visualization for Control of Nano-Fibrillation Based on Spunbond Processing Using a Polypropylene/Polyethylene Terephthalate System
- PPS NEWS
- Seikei Kakou Abstracts
- PPS Membership application
Articles in the same Issue
- Contents
- Editorial
- Special Issue for Musa R. Kamal
- Special issue contributions
- Constitutive Modeling of Nonlinear Rheological Behavior of Carbon Nanotube-Filled Polypropylene Nanocomposites
- Modeling Short-Range Interactions in Concentrated Newtonian Fiber Bundle Suspensions
- The Polymer Film Casting Process – An Overview
- Micro-Injection Molding of Polymer Nanocomposites Composition-Process-Properties Relationship
- Nanoclay Migration and the Rheological Response of PBAT/LDPE Blends
- Composites of Cysteamine Functionalised Graphene Oxide and Polypropylene
- Effect of Uniaxial Stretching on Molecular Orientation, Crystallinity and Oxygen Permeability of Ethylene Vinyl Alcohol
- Investigation of Microstructures and Air Permeability of Aerogel-Coated Textile Fabric Materials
- In Situ Visualization for Control of Nano-Fibrillation Based on Spunbond Processing Using a Polypropylene/Polyethylene Terephthalate System
- PPS NEWS
- Seikei Kakou Abstracts
- PPS Membership application