Modeling and optimization of ionic polymer gel actuators

2009 ◽  
Author(s):  
Choonghee Jo ◽  
Hani E. Naguib ◽  
Roy H. Kwon
Keyword(s):  
Polymer Gel ◽  
Ionic Polymer ◽  
Modeling And Optimization

Fabrication, modeling and optimization of an ionic polymer gel actuator

2011 ◽  
Vol 20 (4) ◽  
pp. 045006 ◽  
Author(s):  
Choonghee Jo ◽  
Hani E Naguib ◽  
Roy H Kwon
Keyword(s):  
Polymer Gel ◽  
Ionic Polymer ◽  
Modeling And Optimization

Bending of ionic polymer gel caused by swelling under sinusoidally varying electric fields

1993 ◽  
Vol 47 (1) ◽  
pp. 113-119 ◽  
Author(s):  
Tohru Shiga ◽  
Yoshiharu Hirose ◽  
Akane Okada ◽  
Toshio Kurauchi
Keyword(s):  
Electric Fields ◽  
Polymer Gel ◽  
Ionic Polymer

MULTIPHYSICS MODELING OF IONIC GEL ACTUATORS

2011 ◽  
Vol 1345 ◽  
Author(s):  
Huibiao Li ◽  
Meie Li ◽  
Jinxiong Zhou
Keyword(s):  
Large Deformation ◽  
Relaxation Processes ◽  
Polymer Gel ◽  
Height Ratio ◽  
Multiphysics Modeling ◽  
Ionic Polymer Metal Composites ◽  
Ionic Polymer ◽  
Polymer Metal ◽  
Large Length ◽  
Dc Current

ABSTRACTWhen an electrocatalyst, platinum, was coated on ionic-polymer gel surfaces and was immersed into an acidic formaldehyde solution, an input dc current will produce oscillatory ac on the surfaces of the ionic-polymer-metal-composites(IPMC), which eventually causes self-oscillatory bending of the actuators. Typical IPMC actuators have a large length-to-height ratio, exhibiting large deformation during bending and relaxation processes. A multiphysics modeling of self-oscillations of IPMC actuator was carried out, incorporating the electrochemical oscillations, electrokinetics, electrostatics and nonlinear large deformation of the actuators.

MULTIPHYSICS MODELING OF SELF-OSCILLATIONS OF IONIC POLYMER GEL ACTUATORS

2011 ◽  
Vol 03 (02) ◽  
pp. 355-363 ◽  
Author(s):  
HUIBIAO LI ◽  
JINXIONG ZHOU ◽  
MEIE LI
Keyword(s):  
Cross Sections ◽  
Variable Cross ◽  
Polymer Gel ◽  
Tactile Sensors ◽  
Ionic Polymer ◽  
Ion Clusters ◽  
Polyelectrolyte Gel ◽  
Polymer Metal ◽  
Large Length ◽  
Dc Current

When the electrocatalyst, platinum, was coated on polyelectrolyte gel surfaces and was immersed into an acidic formaldehyde (HCHO) solution, an input direct current (DC) current would produce oscillatory voltages on the surfaces of the ionic-polymer-metal-composites (IPMC) actuator. The oscillatory voltages on the two electrodes caused the concurrent migration of counter-ion clusters, and ultimately a self-oscillatory bending of the gel actuator was realized. To model the complex multiphysics processes involved in this gel actuator with a typical large length-to-height ratio, the electrochemical processes occurred along each cross section through the height were regarded identically as a one-dimensional process, and the mechanical deformation of the actuator was simplified as the bending of a beam. Motivated by the development of micro-grippers and tactile sensors, self-oscillations of gel actuator with variable cross sections and subject to a spring constraint were simulated for the first time. The procedure outlined herein presents a versatile framework for the design, analysis and optimization of self-oscillating gel actuators.

Deformation of ionic polymer gel films in electric fields

1994 ◽  
Vol 29 (21) ◽  
pp. 5715-5718 ◽  
Author(s):  
T. Shiga ◽  
Y. Hirose ◽  
A. Okada ◽  
T. Kurauchi
Keyword(s):  
Electric Fields ◽  
Polymer Gel ◽  
Ionic Polymer

scholarly journals Simultaneous Removal of Arsenic and Manganese from Synthetic Aqueous Solutions Using Polymer Gel Composites

Nanomaterials ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 1032
Author(s):  
Syed Ragib Safi ◽  
Takehiko Gotoh
Keyword(s):  
Iron Hydroxide ◽  
Methyl Chloride ◽  
Simultaneous Removal ◽  
Polymer Gel ◽  
Gel Structure ◽  
Natural Conditions ◽  
Environment Friendly ◽  
Ionic Polymer ◽  
Removal Of Arsenic ◽  
Mn Concentrations

The groundwater in approximately 50% of the Bangladesh landmass contains Mn concentrations greater than the limit prescribed by the WHO drinking water guidelines. Although studies have suggested that γ-FeOOH can effectively remove Mn from water, its practicability has not been investigated, considering that the additional processes required to separate the adsorbents and precipitates are not environment-friendly. To improve the efficiency of adsorptive Mn-removal under natural conditions, we employed a cationic polymer gel composite, N,N’-Dimethylaminopropyl acrylamide, methyl chloride quaternary (DMAPAAQ) loaded with iron hydroxide (DMAPAAQ + FeOOH), and a non-ionic polymer gel composite, N,N’-Dimethylacrylamide (DMAA) loaded with iron hydroxide (DMAA + FeOOH). DMAPAAQ + FeOOH exhibited a higher As removal efficiency under natural conditions while being environment-friendly. Our results suggest that the higher efficiency of the cationic gel composite is owed to the higher γ-FeOOH content in its gel structure. The maximum adsorption of Mn by DMAPAAQ + FeOOH was 39.02 mg/g. Furthermore, the presence of As did not influence the adsorption of Mn on the DMAPAAQ + FeOOH gel composite and vice versa. DMAPAAQ adsorbed As and the γ-FeOOH particles simultaneously adsorbed Mn. Our findings can serve as a basis for the simultaneous removal of contaminants such as As, Mn, Cr, and Cd.

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