A Simple-to-Implement Simulator for the Reactive Extrusion of Poly(Lactic Acid) in a Corotating Uniform Twin-Screw Extruder
The present paper deals with the poly(lactic acid) (PLA) reactive processing simulation in a uniform corotating twin-screw extruder that can be readily turned into practical applications in pilot and industrial equipment. The simulator provides a cause-effect guide that can be useful for starting an...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2015/458949 |
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| author | René O. Vargas J. Esteban López-Aguilar Lorenzo A. Martínez-Suástegui Francisco López-Serrano |
| author_facet | René O. Vargas J. Esteban López-Aguilar Lorenzo A. Martínez-Suástegui Francisco López-Serrano |
| author_sort | René O. Vargas |
| collection | DOAJ |
| description | The present paper deals with the poly(lactic acid) (PLA) reactive processing simulation in a uniform corotating twin-screw extruder that can be readily turned into practical applications in pilot and industrial equipment. The simulator provides a cause-effect guide that can be useful for starting an experimental setup in a reactive screw extruder for a biopolymer in a growing industry. The proposed model considers a free radical ring-opening mechanism involving the main characteristic flows inside the extruder and the non-Newtonian behavior of PLA. The characteristic behavior relating reaction rate, average molecular weights, and polydispersity against chamber number are described by S-shaped and monotonically decreasing curves, for the equipment. Numerical predictions show that this simple and easy to implement model accurately reproduces previously reported data and that the impurity concentration exhibits a marked effect over all the variables, except conversion. |
| format | Article |
| id | doaj-art-62194ec6f9484d30921346dccadfa11d |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-62194ec6f9484d30921346dccadfa11d2025-08-20T03:34:52ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422015-01-01201510.1155/2015/458949458949A Simple-to-Implement Simulator for the Reactive Extrusion of Poly(Lactic Acid) in a Corotating Uniform Twin-Screw ExtruderRené O. Vargas0J. Esteban López-Aguilar1Lorenzo A. Martínez-Suástegui2Francisco López-Serrano3ESIME Azcapotzalco, Instituto Politécnico Nacional, Avenida de las Granjas No. 682, Colonia Santa Catarina, Delegación Azcapotzalco, 02250 México, DF, MexicoDepartamento de Ingeniería Química, Facultad de Química, Universidad Nacional Autónoma de México, 04510 México, DF, MexicoESIME Azcapotzalco, Instituto Politécnico Nacional, Avenida de las Granjas No. 682, Colonia Santa Catarina, Delegación Azcapotzalco, 02250 México, DF, MexicoDepartamento de Ingeniería Química, Facultad de Química, Universidad Nacional Autónoma de México, 04510 México, DF, MexicoThe present paper deals with the poly(lactic acid) (PLA) reactive processing simulation in a uniform corotating twin-screw extruder that can be readily turned into practical applications in pilot and industrial equipment. The simulator provides a cause-effect guide that can be useful for starting an experimental setup in a reactive screw extruder for a biopolymer in a growing industry. The proposed model considers a free radical ring-opening mechanism involving the main characteristic flows inside the extruder and the non-Newtonian behavior of PLA. The characteristic behavior relating reaction rate, average molecular weights, and polydispersity against chamber number are described by S-shaped and monotonically decreasing curves, for the equipment. Numerical predictions show that this simple and easy to implement model accurately reproduces previously reported data and that the impurity concentration exhibits a marked effect over all the variables, except conversion.http://dx.doi.org/10.1155/2015/458949 |
| spellingShingle | René O. Vargas J. Esteban López-Aguilar Lorenzo A. Martínez-Suástegui Francisco López-Serrano A Simple-to-Implement Simulator for the Reactive Extrusion of Poly(Lactic Acid) in a Corotating Uniform Twin-Screw Extruder Advances in Materials Science and Engineering |
| title | A Simple-to-Implement Simulator for the Reactive Extrusion of Poly(Lactic Acid) in a Corotating Uniform Twin-Screw Extruder |
| title_full | A Simple-to-Implement Simulator for the Reactive Extrusion of Poly(Lactic Acid) in a Corotating Uniform Twin-Screw Extruder |
| title_fullStr | A Simple-to-Implement Simulator for the Reactive Extrusion of Poly(Lactic Acid) in a Corotating Uniform Twin-Screw Extruder |
| title_full_unstemmed | A Simple-to-Implement Simulator for the Reactive Extrusion of Poly(Lactic Acid) in a Corotating Uniform Twin-Screw Extruder |
| title_short | A Simple-to-Implement Simulator for the Reactive Extrusion of Poly(Lactic Acid) in a Corotating Uniform Twin-Screw Extruder |
| title_sort | simple to implement simulator for the reactive extrusion of poly lactic acid in a corotating uniform twin screw extruder |
| url | http://dx.doi.org/10.1155/2015/458949 |
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