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Investigation on replication of microfluidic channels by hot embossing

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dc.contributor.author Çoğun, Ferah
dc.contributor.author Yıldırım, Ender
dc.contributor.author Arikan, M. A. Sahir
dc.date.accessioned 2020-02-28T07:09:52Z
dc.date.available 2020-02-28T07:09:52Z
dc.date.issued 2017
dc.identifier.citation Çoğun, Ferah; Yıldırım, Ender; Arıkan, M.A. Sahir, "Investigation on replication of microfluidic channels by hot embossing", Materials And Manufacturing Processes, Vol.32, No.16, pp.1838-1844, (2017). tr_TR
dc.identifier.issn 1042-6914
dc.identifier.uri http://hdl.handle.net/20.500.12416/2539
dc.description.abstract In this study, effects of embossing temperature, time, and force on production of a microfluidic device were investigated. Polymethyl methacrylate (PMMA) substrates were hot embossed by using a micromilled aluminum mold. The process parameters were altered to observe the variation of replication rate in width and depth as well as symmetry of the replicated microfluidic channels. Analysis of variance (ANOVA) on the experimental results indicated that embossing temperature was the most important process parameter, whereas embossing time and force have less impact. One distinguishing aspect of this study is that, the channels were observed to be skewed to either side of the channel depending on the location of the protrusions on the mold. The mechanism of the skewness was investigated by finite element analysis and discussed in detail. Results showed that the skewness depends on the flow characteristics of the material and could be reduced by increasing the embossing temperature. The best replication rates were obtained at parameter settings of 115 degrees C, 10kN, and 8min for the molds with minimum 56 mu m wide features of 120 mu m depth. We also showed that the fabricated channels could be successfully sealed by solvent-assisted thermo-compressive bonding at 85 degrees C under 5.5kN force. tr_TR
dc.language.iso eng tr_TR
dc.publisher Taylor&Francis tr_TR
dc.relation.isversionof 10.1080/10426914.2017.1317795 tr_TR
dc.rights info:eu-repo/semantics/closedAccess tr_TR
dc.subject Bonding tr_TR
dc.subject Channel tr_TR
dc.subject Embossing tr_TR
dc.subject Hot tr_TR
dc.subject Microfluidics tr_TR
dc.subject Plastic tr_TR
dc.subject PMMA tr_TR
dc.subject Replication tr_TR
dc.title Investigation on replication of microfluidic channels by hot embossing tr_TR
dc.type article tr_TR
dc.relation.journal Materials And Manufacturing Processes tr_TR
dc.contributor.authorID 31835 tr_TR
dc.identifier.volume 32 tr_TR
dc.identifier.issue 16 tr_TR
dc.identifier.startpage 1838 tr_TR
dc.identifier.endpage 1844 tr_TR
dc.contributor.department Çankaya Üniversitesi, Mühendislik Fakültesi, Makine Mühendisliği tr_TR


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