The Use of Apparent Yield Stress to Characterize Exfoliation in Polymer Nanocomposites
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B. Vergnes
Abstract
Nanocomposites based on melt blending of an organoclay and a thermoplastic matrix have end-use properties directly controlled by the state of dispersion of the clay and the resulting nanostructure. It is thus very important to be able to correctly quantify the levels of intercalation and exfoliation of these systems. For the exfoliation, rheological measurements in small amplitude oscillatory shear are very powerful because they put clearly in evidence the interactions between nanofillers. We show in this paper how it is possible to interpret the experimental results, we indicate the advantages and drawbacks of current methods used in the literature and we strongly suggest to use the melt yield stress to characterize exfoliation level.
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© 2011, Carl Hanser Verlag, Munich
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- Microstructural Evolution of PP/EPDM/Organoclay Nanocomposites in a Twin Screw Extruder
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- PPS-News
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Artikel in diesem Heft
- Contents
- Contents
- Regular Contributed Articles
- Thermal Properties and Electrical Conductivity of Graft Copolymers from Polystyrene and Polyvinyl Propionate with Polyaniline
- Opto-thermo-mechanical Characterization for Polyester and Polyamide Surgical Sutures
- Study on Creep Behavior of PP/CaCO3 Molded by Vibration Injection Molding at Different Vibration Frequency and Vibration Pressure
- Investigation of the Moldability Parameters of PEG Based Steatite Feedstocks by Powder Injection Molding
- Factorial Optimisation of the Effects of Melt Spinning Conditions on Biodegradable As-spun Aliphatic-Aromatic Co-Polyester Fibres
- Erosion Behavior of Glass-epoxy Composites Filled with SiC from Bamboo Leaf
- Modelling Behaviour of PET for Stretch and Micro-Blow Moulding Applications Using an Elasto-Visco-Plastic Material Model
- Melting in a Single Screw Extruder: Experiments and 3D Finite Element Simulations
- Poly(ethylene-co-butylene)-b-(styrene-ran-maleic anhydride)2 Compatibilizers via Nitroxide Mediated Radical Polymerization
- Formation and Biodegradation of Polyethylene-based Electret Films
- Microstructural Evolution of PP/EPDM/Organoclay Nanocomposites in a Twin Screw Extruder
- Effect of Processing Conditions on Properties of PET/Clay Nanocomposite Films
- Rapid Communications
- The Use of Apparent Yield Stress to Characterize Exfoliation in Polymer Nanocomposites
- PPS-News
- PPS News
