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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Pich, Andrij
Maastricht University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (19/19 displayed)
- 2024Enhancing Adhesion of Fibrin-Based Hydrogel to Polythioether Polymer Surfacescitations
- 2023Novel Pectin Binder for Satelliting Carbides to H13 Tool Steel for PBF-LB Processingcitations
- 2022Characterization of transient rheological behavior of soft materials using ferrofluid dropletscitations
- 2022Generation of local diffusioosmotic flow by light responsive microgelscitations
- 2021Post-Modification of Biobased Pyrazines and Their Polyesterscitations
- 2020Stimuli-Responsive Zwitterionic Core-Shell Microgels for Antifouling Surface Coatingscitations
- 2020Amphiphilic PVCL/TBCHA microgelscitations
- 2020Ranking of fiber composites by estimation of types and mechanisms of their fracturecitations
- 2020Polyphosphazene-Tannic Acid Colloids as Building Blocks for Bio-Based Flame-Retardant Coatingscitations
- 2020Mononuclear zinc(II) Schiff base complexes as catalysts for the ring-opening polymerization of lactidecitations
- 2020Dual-Temperature-Responsive Microgels from a Zwitterionic Functional Graft Copolymer with Superior Protein Repelling Propertycitations
- 2019Heterolepic β ‐Ketoiminate Zinc Phenoxide Complexes as Efficient Catalysts for the Ring Opening Polymerization of Lactidecitations
- 2019Selenium-Modified Microgels as Bio-Inspired Oxidation Catalystscitations
- 2019Heterolepic β-Ketoiminate Zinc Phenoxide Complexes as Efficient Catalysts for the Ring Opening Polymerization of Lactidecitations
- 2019Heterolepic β‐Ketoiminate Zinc Phenoxide Complexes as Efficient Catalysts for the Ring Opening Polymerization of Lactide
- 2019Tuning Channel Architecture of Interdigitated Organic Electrochemical Transistors for Recording the Action Potentials of Electrogenic Cellscitations
- 2017Internal structure and phase transition behavior of stimuli-responsive microgels in PEG meltscitations
- 2014Water dispersible electrically conductive poly(3,4- ethylenedioxythiophene) nanospindles by liquid crystalline template assisted polymerizationcitations
- 2013Formation of catalytically active gold-polymer microgel hybrids via a controlled in situ reductive processcitations
Places of action
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article
Characterization of transient rheological behavior of soft materials using ferrofluid droplets
Abstract
Physical material properties, such as elasticity, viscosity, or viscoelasticity, can be characterized by using rheometers or stick-type solenoid electromagnets. In this work, we developed a magnet measurement setup based on a Helmholtz arrangement of electromagnets. While applying homogeneous magnet fields to ferrofluid droplets inside a soft material of interest, the deformations of the ellipsoidal deformed droplets were measured. Kelvin-Voigt models and corresponding analytical descriptions were used to calculate the values of viscosity and Young's modulus of materials under test. For calibration purposes of the developed setup, glycerin/water mixtures and methylcellulose/water solutions were characterized as viscous and polyacrylamide gels as elastic materials, respectively. In addition, the interfacial tensions were calculated with respect to the magnetic Bond number from the droplet deformations. For the first time, the transient rheological behavior of viscoelastic material was measured using the method of ferrofluid droplet deformation. When polyacrylamide gel with a shear modulus of 230 Pa was evacuated for less than 40 min during preparation, it showed a strong time-depending viscoelastic behavior several minutes after starting the measurements. Here, Young's modulus increased up to the value of elastic behavior, whereas the values for viscosity decreased to a baseline. The developed setup can favorably be used in future applications to investigate local and also time-dependent rheological properties of soft materials.