Modeling and Simulation of a Biopolymer Processing in a Single Screw Extruder

  • U. Romero Ortiz
  • A. López Villa
  • R. O. Vargas AguilarEmail author
Conference paper
Part of the Environmental Science and Engineering book series (ESE)


Modeling and numerical simulation of a biopolymer processing in a single screw extruder is developed. Polylactic acid (PLA) is one of the natural polymers proposed as a substitute for synthetic polymers because of the similarity in physical properties as well as processing conditions. The PLA behaves as a shear thinning fluid, in order to involve this feature the Power Law model is used as a constitutive equation and the temperature dependent viscosity is also considered. The model is validated comparing typical flow curves of a Newtonian fluid generated by the model with results previously reported in the literature. Finally, the drag flows and pressure flows are analyzed, the effect of the power index and the flow curves for Newtonian and non-Newtonian fluids are compared.


Shear Rate Polylactic Acid Flow Curve Couette Flow Jacobi Polynomial 
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This project is funded by the research projects 20100658 and SIP 20144085 SIP_IPN in Mexico.


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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  • U. Romero Ortiz
    • 1
  • A. López Villa
    • 1
  • R. O. Vargas Aguilar
    • 1
    Email author
  1. 1.ESIME Azcapotzalco, Instituto Politécnico NacionalMéxicoMexico

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