Modeling Non-isothermal Mixing in a Rotor Mixer
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A. Ya. Malkin
Abstract
A mathematical model of the mixing process in a two-rotor mixer is proposed. The model developed takes into account the interrelations among the following essential features of the process: non-isothermal effects due to heat exchange and energy dissipation in flow, non-Newtonian behavior of a material and dependence of its properties on temperature and the degree of filler agglomerate destruction, kinetics of changing carbon agglomerate sizes due to mechanical distraction. The system of governing equations is formulated and the procedure of its solution is described.
The theoretical model is compared with experimental data obtained in real technological process of mixing of a rubber compound. In all cases quite satisfactory results of comparison were obtained. It means that the model proposed can be used for analysis of real technological processes of mixing and choice of optimal technological regime and geometrical sizes of a mixer (primarily size of the gap between a rotor and the wall of a chamber) as well.
© 1999, Carl Hanser Verlag, Munich
Articles in the same Issue
- Editorial
- First of a Series: Pioneering Polymer Industry Developments: Bayer and the First Synthetic RubberFirst of a Series
- Internal Mixer
- Modeling Non-isothermal Mixing in a Rotor Mixer
- Screw Extrusion/Mixing
- Chrome Nitride Coatings for Applications in Plastics Processing
- Using Computational Fluid Dynamics to Investigate the Flow of a Viscous Fluid in a Cavity with Oscillating Boundaries
- Simulation of Flow in an Intermeshing Modular Counter-rotating Twin Screw Extruder: Non-Newtonian and Non-Isothermal Behavior
- Reactive Extrusion
- Bulk and Dispersed Phase Polymerization of Urethane in Twin Screw Extruders
- Die Extrusion
- Wire Coating by Drawdown of an Extruded Annular Melt
- Fibers and Films
- Structure Development in Melt Spinning Polypropylene-EPM Blends and Dynamically Vulcanized Polyolefin TPEs
- Simulation of Blown-Film Process Taking Account of Cooling-air Effect
- Molding
- Analysis of Shrinkage Development of Injection Moulded PS Samples
- Optimization of the Weldline Strength in Gas-assist Injection Molded Thermoplastic
- Injection Velocity Control Using A Self-tuning Adaptive Controller
Articles in the same Issue
- Editorial
- First of a Series: Pioneering Polymer Industry Developments: Bayer and the First Synthetic RubberFirst of a Series
- Internal Mixer
- Modeling Non-isothermal Mixing in a Rotor Mixer
- Screw Extrusion/Mixing
- Chrome Nitride Coatings for Applications in Plastics Processing
- Using Computational Fluid Dynamics to Investigate the Flow of a Viscous Fluid in a Cavity with Oscillating Boundaries
- Simulation of Flow in an Intermeshing Modular Counter-rotating Twin Screw Extruder: Non-Newtonian and Non-Isothermal Behavior
- Reactive Extrusion
- Bulk and Dispersed Phase Polymerization of Urethane in Twin Screw Extruders
- Die Extrusion
- Wire Coating by Drawdown of an Extruded Annular Melt
- Fibers and Films
- Structure Development in Melt Spinning Polypropylene-EPM Blends and Dynamically Vulcanized Polyolefin TPEs
- Simulation of Blown-Film Process Taking Account of Cooling-air Effect
- Molding
- Analysis of Shrinkage Development of Injection Moulded PS Samples
- Optimization of the Weldline Strength in Gas-assist Injection Molded Thermoplastic
- Injection Velocity Control Using A Self-tuning Adaptive Controller
