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WEB Synthesis of a shape memory polymer for soft robotics

Tuesday (22.09.2020)
14:45 - 15:00 F: Functional Materials, Surfaces, and Devices 2
Part of:

Here we introduce a shape memory polymer with promising material properties. The polyester urethane was synthesized in a two-step process consisting of a polycondensation reaction to prepare a polyester diol followed by a polyaddition reaction. Once melt-extruded to filaments, fused filament fabrication was used as additive manufacturing technique to obtain the polymer in its permanent shape. After programming, a thermoresponsive actuator could be obtained with a high degree of reliability as proven in durability measurements. When implemented into a specially designed gripper system, the gripper was able to grab and release a fragile object. This makes both the material and the gripper system attractive for applications in the field of soft robotics.

Dennis Schönfeld
Fraunhofer Institute for Applied Polymer Research IAP
Additional Authors:
  • Dilip Chalissery
    Fraunhofer-Institut für Angewandte Polymerforschung IAP
  • Dr.-Ing. Sarah Fischer
    Fraunhofer-Institut für zerstörungsfreie Prüfverfahren IZFP
  • Dr. Philipp Mörchel
    Fraunhofer-Institut für Integrierte Schaltungen IIS
  • Dr. Thorsten Pretsch
    Fraunhofer-Institut für Angewandte Polymerforschung IAP