Molekulare Schichten auf Nickel- und Stahloberflächen und deren thermische Stabilität

Translated title of the contribution: Molecular layers on nickel and steel surfaces and their thermal stability

Florian Mostegel

Research output: ThesisMaster's Thesis

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Abstract

The demolding step in injection molding is a significant key to enhance productivity and to enable the production of polymer parts with features in the micrometer range. By coating the tool with molecular layers, the required demolding force can be reduced. In this thesis different molecular coatings, which lead to lower surface energies and therefore lower demolding forces, are examined. Two molecules, 1H,1H,2H,2H-perfluorodecylphosphonic acid and octadecylhydroxamic acid, were synthesized for that purpose. These molecules were characterized by Nuclear Magnetic Resonance Spectroscopy (NMR) and Mass Spectrometry (MS) measurements. Besides the characterization of the deposited molecular layers on nickel and steel surfaces the thermal stability was investigated by means of X-Ray Photoelectron Spectroscopy (XPS) and contact angle measurements. The most promising coatings will be subjected to application tests, such as injection moulding and hot embossing.
Translated title of the contributionMolecular layers on nickel and steel surfaces and their thermal stability
Original languageGerman
QualificationDipl.-Ing.
Supervisors/Advisors
  • Kern, Wolfgang, Supervisor (internal)
  • Griesser, Thomas, Co-Supervisor (internal)
Award date16 Dec 2011
Publication statusPublished - 2011

Bibliographical note

embargoed until 01-12-2016

Keywords

  • molecular layers
  • demolding force reduction
  • surface energy reduction
  • surface analysis

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