June, 2010
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Processing new products and new materials
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Bio based and bio degradable polymers, recyclable plastics, renewable based contents... All those terms mean the multiplicity of new thematics that arise in the field of polymers, compounds and materials. Those types of materials are very young and need to be worked out before being produced. It often means to design or improve the processes of material elaboration.
On the whole, "green" products are based on new formulations or new processes. It implicates to realize tests of the product formulation and on different machineries designs.
Mixing capabilities of the system, control of the product temperature, stress and shear rate are essential parameters of those processes. Numerical simulation affords to reah the best configuration taking into account the product and its characteristics.
Main analysis of Mixing and Extrusion process by numerical simulation :
- Control of the impact of the parameters on the product (Temperature, Shear Rate, stress, SME....)
- Mixing efficiency : Particles tracking, Particles Elongation, Residence Time Distribution...
- Definition of the Functioning Domain...
Comparison of Residence Time on 7 screw configurations
Example of single screw Simulation
Simulation of Particles Dispersion in a Static Mixer : Residence Time Distributon and Local Elongation Analysis