Dresden 2020 – scientific programme
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 51: Poster Session III-2
CPP 51.14: Poster
Tuesday, March 17, 2020, 14:00–16:00, P2/EG
Bending Simulations of Hydrogel Bi-layer Beams — •Sebastian Meyer1, Lukas Conrads1, Jonas Staudenmeir1, Tobias Abel1, Niklas Junker1, Gero von Plessen1, and Dmitry Chigrin1,2 — 1Institute of Physics (IA), RWTH Aachen, Germany — 2DWI Leibniz Institute for Interactive Materials, Aachen, Germany
Hydrogels are cross-linked polymer networks that exhibit a great capacity to absorb and store large amounts of solvent. The amount of solvent in the hydrogel depends strongly on external parameters like the temperature, pH-value, etc., of the surroundings. Therefore, variations of these parameters can lead to large volume changes of the hydrogel. Two connected layers of differently cross-linked gels will start to bend, with the bending curvature depending on the temperature of the surroundings. Here, we present a theoretical description of such a bending for free and constrained hydrogel bi-layer beams using both classical beam theory and 3D finite volume simulations. Further, we compare the results to experimental observations.