A statistical analysis of nanocavities replication applied to injection moulding
Pina Estany, Jordi (Universitat Ramon Llull. Institut Químic de Sarrià-IQS)
Colominas, Carles (Universitat Ramon Llull. Institut Químic de Sarrià-IQS)
Fraxedas, Jordi (Institut Català de Nanociència i Nanotecnologia)
Llobet Sixto, Jordi (Institut de Microelectrònica de Barcelona)
Pérez Murano, Francesc (Institut de Microelectrònica de Barcelona)
Puigoriol-Forcada, Josep Maria (Universitat Ramon Llull. Institut Químic de Sarrià-IQS)
Ruso, D. (Flubetech SL)
García Granada, Andrés (Universitat Ramon Llull. Institut Químic de Sarrià-IQS)

Date:	2017
Abstract:	The purpose of this paper is to investigate both theoretically and experimentally how nanocavities are replicated in the injection moulding manufacturing process. The objective is to obtain a methodology for efficiently replicate nanocavities. From the theoretical point of view, simulations are carried out using a submodeling approach combining Solidworks Plastics for a first macrosimulation and Fluent solver for a subsequent nanosimulation. The effect of the four main factors (melt temperature, mould temperature, filling time and cavity geometry) are quantified using an statistical 2 factorial experiment. It is found that the main effects are the cavity length, the mould temperature and the polymer temperature, with standardized effects of 5, 3 and 2. 6, respectively. Filling time has a negative 1. 3 standardized effect. From the experimental point of view, Focused Ion Beam technique is used for mechanizing nanocavities in a steel mould. The replication achieved in polycarbonate injection is quantified using an Atomic Force Microscope. It is observed how both the geometry and the position of the cavities in the mould affect its replication.
Grants:	European Commission 309558 Ministerio de Economía y Competitividad SEV-2013-0295
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.
Language:	Anglès
Document:	Article ; recerca ; Versió sotmesa a revisió
Subject:	AFM ; CFD ; Heat transfer ; Injection moulding ; Nanoscale simulation ; Submodeling
Published in:	International communications in heat and mass transfer, Vol. 81 (Feb. 2017) , p. 131-140, ISSN 0735-1933

DOI: 10.1016/j.icheatmasstransfer.2016.11.003

Pre-print 10 p, 2.5 MB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Catalan Institute of Nanoscience and Nanotechnology (ICN2)
Articles > Research articles
Articles > Published articles