Dresden 2017 – wissenschaftliches Programm
CPP 52.7: Poster
Mittwoch, 22. März 2017, 18:30–21:00, P3
Poly(NIPAm) can actuate to stable 3D forms: An experimental-numerical study on one component dual actuation — •Ali Ghaemi1, Li Liu2, Stephan Gekle1, and Seema Agarwal2 — 1Biofluid Simulation and Modeling, Fachbereich Physik, and Bayreuth Center for Colloids and Interfaces, Universität Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany — 2Macromolecular Chemistry II and Bayreuth Center for Colloids and Interfaces, Universität Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany
Numerical analysis in combination with experimental results are applied in order to explain the complex behavior of a rare example of one-component dual actuators. The system of interest is a bilayer with aligned and randomly oriented poly(N-isopropyl acrylamide) fibers which displays irreversible change in shape by rolling in contact with water, and reversible size change in response to temperature changes. A combination of anisotropic Young*s modulus and temperature dependent swelling/shrinkage was shown to be responsible for the actuators controllable unique folding.