Verfahrensvergleich zur Herstellung von mikro- und nanostrukturierten Oberflächen

Translated title of the contribution: Comparison of techniques for the replication of micro- and nanostructured surfaces

Stefan Lemmerer

Research output: ThesisMaster's Thesis

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Abstract

This thesis deals with the replication of v-grooves in the sub-micron range by injection moulding, injection compression moulding and variotherm injection moulding. The variotherm mould temperature was achieved by an infrared radiator. The tests were performed with PP Dow H734-52 RNA and COP Zeonor 1060R. The effects and interactions of the parameters melt temperature and injection speed as well as mould temperature and holding pressure were investigated by using two 2-factorial designs. Higher mould temperature and higher melt temperature increase the quality of replication significantly. Holding pressure leads to slightly better replication. Increasing injection speed shows a tendency towards worse results. The use of injection compression moulding slightly increases the structure replicaton. The v-grooves were replicated in a good manner when variotherm injection moulding is used. Mould temperatures at or above the glass transition temperature are necessary for full replication of v-grooves with COP. The lowest temperature for full replication of v-grooves with PP is at least 20 °C below its crystallisation temperature.
Translated title of the contributionComparison of techniques for the replication of micro- and nanostructured surfaces
Original languageGerman
QualificationDipl.-Ing.
Supervisors/Advisors
  • Friesenbichler, Walter, Co-Supervisor (internal)
  • Berger, Gerald, Co-Supervisor (external)
  • Holzer, Clemens, Supervisor (internal)
Award date26 Jun 2009
Publication statusPublished - 2009

Bibliographical note

embargoed until null

Keywords

  • microstructure nanostructure injection moulding injection compression moulding variotherm

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