Material investigations on poly(ethylene glycol) diacrylate-based hydrogels for additive manufacturing considering different molecular weights

  • Sven Frank Klimaschewski Faculty of Mechanical Engineering, University of Applied Sciences Stralsund, Zur Schwedenschanze 15, Stralsund, 18435, Germany https://orcid.org/0000-0001-9878-7603
  • Janine Küpperbusch Faculty of Mechanical Engineering, University of Applied Sciences Stralsund, Zur Schwedenschanze 15, Stralsund, 18435, Germany
  • Annika Kunze Faculty of Mechanical Engineering, University of Applied Sciences Stralsund, Zur Schwedenschanze 15, Stralsund, 18435, Germany
  • Mark Vehse Faculty of Mechanical Engineering, University of Applied Sciences Stralsund, Zur Schwedenschanze 15, Stralsund, 18435, Germany
Keywords: additive manufacturing, stereolitography, PEGDA, molecural weights, material properties, biocompatible hydrogel

Abstract

The aim of this case study is to generate several poly(ethylene glycol) diacrylate-based hydrogels using additive manufacturing process and compare their material properties. A commercial stereolithography system is used to produce the test specimens in accordance with ISO standards. Three formulations will be prepared for this purpose. The basis in each case is PEGDA with average molecular weights of 700 Mn, 575 Mn and 250 Mn. A photoinitiator and an UV absorber are added to ensure spatial and temporal crosslinking. Subsequently, the formulations are investigated for their material properties according to ISO standards by means of tensile, compression and hardness tests, and the influence of the molecular weights is determined.

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Published
2022-07-01
How to Cite
Klimaschewski, S., Küpperbusch, J., Kunze, A. and Vehse, M. (2022) “Material investigations on poly(ethylene glycol) diacrylate-based hydrogels for additive manufacturing considering different molecular weights”, Journal of Mechanical and Energy Engineering, 6(1), pp. 33-42. doi: 10.30464/jmee.2022.6.1.33.
Section
Mechanical Engineering