Abstract
Objective: Magneto-active Polymers (MAP) are smart materials whose mechanical characteristics, such as elastic and shear moduli, may be controllable by means of an externally applied magnetic field. Methods: Various additives may be used to influence the characteristics of the polymer matrix whilst a suspension of soft and/or hard magnetic particles determine the magnetic properties of the composite. Both pre-cure and post-cure magnetization is possible. Results: A range of control strategies have been investigated for evaluation of the system using fluids of differing kinematic viscosity. Conclusion: Depending on the degree of magnetic field homogeneity, magneto-deformation and magnetostriction contribute to MAP actuation. This paper presents a novel application in the form of a peristaltic MAP tube system, applicable to flow control and pumping of hemorheological fluids in blood circulatory systems for biomedical research purposes.
Highlights
Over the past decade, Magneto-active Polymers (MAP) have become an established class of hybrid smart material
The magnetically induced constriction of MAP tubes has potential applications in hydraulic valve technology where pulsed magnetic fields may be utilized for pumping applications
This application depends on in-depth research concerning the magneto-active principles which in turn opens new possibilities for further investigation into MAP actuation
Summary
Depending on the degree of magnetic field homogeneity, magneto-deformation and magnetostriction contribute to MAP actuation.
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