Evaluierung von Thiol-Alkin-Methacrylat-Systemen für die Additive Fertigung von keramischen Komposit-Strukturen

Translated title of the contribution: Evaluation of thiol-alkyne-methacrylate systems for the additive manufacturing of ceramic composite structures

Katharina Sommer

Research output: ThesisMaster's Thesis

Abstract

Progress in the development of the stereolithographic process enables the additive manufacturing of complex three-dimensional ceramic composite structures. This technology is based on photopolymers, which are filled with ceramic particles in contrast to classical stereolithography. The composition of the photopolymer has a significant influence on both, the properties of the printed part and on the printing process itself. The purpose of this master thesis was the evaluation of a 3-component monomer system consisting of thiol, alkyne and methacrylate compounds for the additive manufacturing of ceramic composite structures. In this system, the chain-growth mechanism of the methacrylate monomers is combined with the thiol-yne step-growth mechanism of the thiol and alkyne monomers. The generated homogeneous network structure enables a higher monomer conversion as well as a higher thermal stability in comparison to pure methacrylate or acrylate systems. Furthermore, the shrinkage stresses during photopolymerization are comparatively low leading to a higher ductility of the generated networks. Based on the relatively low viscosity of the evaluated system, the 3D-printing of a composite part containing 65 wt.-% ceramic particles was possible.
Translated title of the contributionEvaluation of thiol-alkyne-methacrylate systems for the additive manufacturing of ceramic composite structures
Original languageGerman
QualificationDipl.-Ing.
Awarding Institution
  • Montanuniversität
Supervisors/Advisors
  • Griesser, Thomas, Supervisor (internal)
Award date25 Oct 2019
Publication statusPublished - 2019

Bibliographical note

embargoed until 19-08-2024

Keywords

  • photopolymerization
  • stereolithography
  • ceramic composite material

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