Evaluation of stability for monolayer injection molding tools coating

Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2012

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We tested and characterized molecular coating of Aluminium and Nickel prototype molds and mold inserts for polymer replication via injection molding (IM). X-Ray photoelectron spectroscopy (XPS) data, sessile drop contact angles with multiple fluids, surface energy and roughness data have been collected and used to predict coating lifetimes. Samples have been characterized immediately after coating, after 500+ IM cycles to test durability and after 7 months to test temporal stability. Sessile drop contact angle was measured for multiple fluids, namely water, di-iodomethane and benzylacohol. Detectable coating presence was indicated by an increased angle on all post IM samples. To conclude, we present mold coating evaluation method, which is well suited for ultrathin, controlable, covalently bonded coating, that is reasonably durable, affordable, scalable to production, detectable on surface and especially suitable for rapid prototyping and mold geometry testing.
Original languageEnglish
Title of host publicationNanotech : Advanced Materials, CNTs, Particles, Films and Composites
Volume1
Publication date2012
Pages679 - 682
ISBN (print)978-1-4665-6274-5
StatePublished

Conference

ConferenceNanotech 2012
Number15
CountryUnited States
CitySanta Clara
Period18/06/1221/06/12

Keywords

  • Injection Molding, , Coating, Demolding, Adhesion Reduction, Monolayer
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