| Journal: | Ingeniería mecánica, tecnología y desarrollo |
| Database: | PERIÓDICA |
| System number: | 000455657 |
| ISSN: | 1665-7381 |
| Authors: | Herrera Velarde, J. R1 Mena, B2 Zenit, R2 |
| Institutions: | 1Instituto Tecnológico de Zacatepec, Zacatepec, Morelos. México 2Universidad Nacional Autónoma de México, Instituto de Ingeniería, Ciudad de México. México |
| Year: | 2005 |
| Volumen: | 1 |
| Number: | 6 |
| Pages: | 202-208 |
| Country: | México |
| Language: | Español |
| Document type: | Artículo |
| Approach: | Descriptivo |
| English abstract | The effect of imposed oscillations to a plymer extrusion process has been studied experimentaly. By using a simple crank-slider mechanism, longitudinal, transversal and helicoidal oscillations were imposed at the exit of a melted polymer extrusion flow. It was found that the mechanical properties of the polymers extruded under the action of the imposed oscillatios were better compared to products extruded in ordinary conditions. it can be argued that the imposed oscillation produce a preferential orentation of the polymers chains in the extruded products. Using fiber tracers, it was shown that a preferential orientation is indeed produced in the final structure of the polymers |
| Disciplines: | Física y astronomía |
| Keyword: | Flujo oscilatorio, Fluidos viscoelásticos, Polímeros extruídos, Procesamiento de polímeros, Propiedades mecánicas |
| Keyword: | Extruded polymers, Mechanical properties, Oscillatory flow, Polymer processing, Viscoelastic fluids |
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