Rawal, AGonsalves, JW2007-03-272007-06-072007-03-272007-06-072006Rawal, A and Gonsalves, JW. 2006. Rotational effects of polymeric fluids on shape of filaments in melt extruded net structures. Plastics Rubber and Composites, vol. 35(1), pp 23-271465-8011http://hdl.handle.net/10204/2095http://hdl.handle.net/10204/2095The present work deals with the net structures, which are produced by replacing the static die (spinneret) with two concentric dies rotating in opposite directions in a melt extrusion process. These dies consist of defined number of slots with non-circular geometries on their peripheries and the filaments are produced when the slots in disk and annulus are offset from each other. The effect of die rotation on the shape of filament is investigated by analysing the polymer flow inside the complex die slots including square and trapezoidal shapes, using computational fluid dynamics (CFD). The die slot shapes have also been predicted using CFD to achieve the desired filament shape.208611 bytesapplication/pdfenCopyright: 2006 Maney PublishingPolymeric fluids effectsComputational fluid dynamicsFilamentsNet structuresExtrudateDie slotsMaterials sciencesCompositesPolymer sciencesArticleRawal, A., & Gonsalves, J. (2006). Rotational effects of polymeric fluids on shape of filaments in melt extruded net structures. http://hdl.handle.net/10204/2095Rawal, A, and JW Gonsalves "Rotational effects of polymeric fluids on shape of filaments in melt extruded net structures." (2006) http://hdl.handle.net/10204/2095Rawal A, Gonsalves J. Rotational effects of polymeric fluids on shape of filaments in melt extruded net structures. 2006; http://hdl.handle.net/10204/2095.TY - Article AU - Rawal, A AU - Gonsalves, JW AB - The present work deals with the net structures, which are produced by replacing the static die (spinneret) with two concentric dies rotating in opposite directions in a melt extrusion process. These dies consist of defined number of slots with non-circular geometries on their peripheries and the filaments are produced when the slots in disk and annulus are offset from each other. The effect of die rotation on the shape of filament is investigated by analysing the polymer flow inside the complex die slots including square and trapezoidal shapes, using computational fluid dynamics (CFD). The die slot shapes have also been predicted using CFD to achieve the desired filament shape. DA - 2006 DB - ResearchSpace DP - CSIR KW - Polymeric fluids effects KW - Computational fluid dynamics KW - Filaments KW - Net structures KW - Extrudate KW - Die slots KW - Materials sciences KW - Composites KW - Polymer sciences LK - https://researchspace.csir.co.za PY - 2006 SM - 1465-8011 T1 - Rotational effects of polymeric fluids on shape of filaments in melt extruded net structures TI - Rotational effects of polymeric fluids on shape of filaments in melt extruded net structures UR - http://hdl.handle.net/10204/2095 ER -