scholarly journals Scattering from dilute ferrofluid suspensions in soft polymer gels

2003 ◽  
Vol 67 (2) ◽  
Author(s):  
Alvaro V. Teixeira ◽  
Isabelle Morfin ◽  
Françoise Ehrburger-Dolle ◽  
Cyrille Rochas ◽  
Erik Geissler ◽  
...  
Keyword(s):  
Polymer Gels ◽  
Soft Polymer

scholarly journals Buckling of paramagnetic chains in soft gels

Soft Matter ◽  
2016 ◽  
Vol 12 (1) ◽  
pp. 228-237 ◽  
Author(s):  
Shilin Huang ◽  
Giorgio Pessot ◽  
Peet Cremer ◽  
Rudolf Weeber ◽  
Christian Holm ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
Polymer Gels ◽  
Paramagnetic Particle ◽  
Soft Polymer ◽  
Soft Gels ◽  
Particle Chains

Paramagnetic particle chains in soft polymer gels can show pronounced buckling deformation under perpendicular external magnetic fields.

Biaxial strain testing of extremely soft polymer gels

Soft Matter ◽  
2011 ◽  
Vol 7 (6) ◽  
pp. 2632 ◽  
Author(s):  
Bitoh Yohsuke ◽  
Kenji Urayama ◽  
Toshikazu Takigawa ◽  
Kohzo Ito
Keyword(s):  
Polymer Gels ◽  
Biaxial Strain ◽  
Strain Testing ◽  
Soft Polymer

Freeze-etch TEM of aqueous polymer gel network morphology

1986 ◽  
Vol 44 ◽  
pp. 796-797
Author(s):  
J. A. N. Zasadzinski ◽  
R. K. Prud'homme
Keyword(s):  
Metal Ion ◽  
Polymer Network ◽  
Polymer Gels ◽  
Polymer Gel ◽  
Deformation History ◽  
Crosslinked Polymer ◽  
Aqueous Polymer ◽  
History Of ◽  
Gel Network ◽  
Network Morphology

The rheological and mechanical properties of crosslinked polymer gels arise from the structure of the gel network. In turn, the structure of the gel network results from: thermodynamically determined interactions between the polymer chain segments, the interactions of the crosslinking metal ion with the polymer, and the deformation history of the network. Interpretations of mechanical and rheological measurements on polymer gels invariably begin with a conceptual model of,the microstructure of the gel network derived from polymer kinetic theory. In the present work, we use freeze-etch replication TEM to image the polymer network morphology of titanium crosslinked hydroxypropyl guars in an attempt to directly relate macroscopic phenomena with network structure.

Progress of polymer gels for conformance control in oilfield

2021 ◽  
Vol 289 ◽  
pp. 102363
Author(s):  
Wanli Kang ◽  
Xin Kang ◽  
Zeeshan Ali Lashari ◽  
Zhe Li ◽  
Bobo Zhou ◽  
...  
Keyword(s):  
Polymer Gels ◽  
Conformance Control

Coupling Fluid Flow to Hydrogel Fluidic Devices with Reversible “Pop-it” Connections

Lab on a Chip ◽  
2021 ◽  
Author(s):  
Reha Abbasi ◽  
Thomas Brian LeFevre ◽  
Aaron David Benjamin ◽  
Isaak John Thornton ◽  
James Nolen Wilking
Keyword(s):  
Fluid Flow ◽  
Polymer Gels ◽  
Soft Water ◽  
Biological Engineering ◽  
Free Standing ◽  
Engineering Applications ◽  
Fluidic Devices ◽  
Water Based

Hydrogels are soft, water-based polymer gels that are increasingly used to fabricate free-standing fluidic devices for tissue and biological engineering applications. In many of these applications, pressurized liquid must be...

scholarly journals Soft Jumping Robot Using Soft Morphing and the Yield Point of Magnetic Force

2021 ◽  
Vol 11 (13) ◽  
pp. 5891
Author(s):  
Gang-Hyun Jeon ◽  
Yong-Jai Park
Keyword(s):  
Residual Stress ◽  
Polymer Materials ◽  
Rigid Base ◽  
Release Mechanism ◽  
Transfer Energy ◽  
Deformation Control ◽  
Energy Retention ◽  
Base Jumping ◽  
Jumping Robot ◽  
Soft Polymer

In this paper, soft-morphing, deformation control by fabric structures and soft-jumping mechanisms using magnetic yield points are studied. The durability and adaptability of existing rigid-base jumping mechanisms are improved by a soft-morphing process that employs the residual stress of a polymer. Although rigid body-based jumping mechanisms are used, they are driven by multiple components and complex structures. Therefore, they have drawbacks in terms of shock durability and fatigue accumulation. To improve these problems, soft-jumping mechanisms are designed using soft polymer materials and soft-morphing techniques with excellent shock resistance and environmental adaptability. To this end, a soft jumping mechanism is designed to store energy using the air pressure inside the structure, and the thickness of the polymer layer is adjusted based on the method applied for controlling the polymer freedom and residual stress deformation. The soft jumping mechanism can transfer energy more efficiently and stably using an energy storage and release mechanism and the rounded ankle structure designed using soft morphing. Therefore, the soft morphing and mechanisms of energy retention and release were applied to fabricate a soft robot prototype that can move in the desired direction and jump; the performance experiment was carried out.

Sign in / Sign up

Export Citation Format

Share Document