Replication of nanoscale surface gratings via injection molding
Muntada López, Olga (Institut de Microelectrònica de Barcelona)
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)
Pérez Murano, Francesc (Institut de Microelectrònica de Barcelona)
García Granada, Andrés (Universitat Ramon Llull. Institut Químic de Sarrià-IQS)

Date:	2019
Abstract:	Nanostructured gratings fabricated on silicon chips have been successfully transferred to polypropylene plastic parts by means of injection molding. Different sets of experiments were carried out along with a repeatability analysis in order to study the effect in the replication of process parameters such as maximum injection pressure, injection time, charge and polymer temperature, geometric factors such as width and separation between lines of the gratings and flow direction as well as demolding conditions. Among all factors, the one with a larger effect is the separation between consecutive trenches, which was studied in detail through Computational Fluid Dynamics simulations. In addition, a previously not reported sinking effect in the nanostructured area and a shrinking of the pattern period were characterized and simulated.
Grants:	European Commission 309558 Ministerio de Economía y Competitividad SEV-2017-0706
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Plastic injection molding ; Nanostructured surfaces ; Computational fluid dynamics ; Heat transfer
Published in:	Micro and Nano Engineering, Vol. 3 (May 2019) , p. 37-43, ISSN 2590-0072

DOI: 10.1016/j.mne.2019.03.003

7 p, 2.0 MB

The record appears in these collections:
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