scholarly journals Graphene Oxide-Polyaniline Coating on Ionic Polymer Blend Membrane for Actuation

2021 ◽  
Vol 33 (10) ◽  
pp. 2509-2513
Author(s):  
Km. Rachna ◽  
R.M. Mehra ◽  
Pramod K. Singh ◽  
N.B. Singh ◽  
Bhasker Pratap Choudhary ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Water Uptake ◽  
Mechanical Energy ◽  
Electrical Energy ◽  
Blend Ratio ◽  
Ionic Polymer ◽  
Blend Membrane ◽  
Blend Films ◽  
Solution Cast ◽  
Polymer Metal

Ionic polymer metal composites (IPMC) can be used as actuators and sensors and intrinsically have low activation voltage and large bending strain, which help to transform electrical energy to mechanical energy and can be utilized as bidirectional material. In this study, the ionic polymeric blend films/membranes of PVDF:PSSS:PVP in the blend ratio of 40:30:30; 50:30:20 and 60:15:25 (wt.%) is presented. The membranes were prepared by solution cast technique and coated with graphene oxide (GO)-polyaniline (PANI). Membranes were characterized by X-ray diffraction, optical microscopy. Electrical conductivities at different frequencies and water uptake properties were also determined. The actuating performance of PVDF:PSSS:PVP and water uptake of blend membrane was found to be maximum for the blend ratio of 60:15:25. PVDF:PSSS:PVP with blend ratio (60:15:25) also exhibited highest actuation at 10 V DC. Graphene oxide was prepared and characterized by using FTIR and Raman spectra. A brief account of the fabrication of IPMC and its actuation application was also presented.

Aided manufacturing techniques and applications in optics and manipulation for ionic polymer-metal composites as soft sensors and actuators

2015 ◽  
Vol 35 (7) ◽  
pp. 611-626 ◽  
Author(s):  
Yanjie Wang ◽  
Hualing Chen ◽  
Jiayu Liu ◽  
Zicai Zhu ◽  
Longfei Chang ◽  
...  
Keyword(s):  
Mechanical Energy ◽  
Electrical Energy ◽  
General Mechanism ◽  
Sensors And Actuators ◽  
Metal Composites ◽  
Ionic Polymer Metal Composites ◽  
Ionic Polymer ◽  
Polymer Metal ◽  
Manufacturing Techniques ◽  
Soft Actuators

Abstract Recently, ionic polymer-metal composites (IPMCs), which are becoming an increasingly popular material, have been used as soft actuators because of their inherent properties of light weight, flexibility, softness, especially efficient transformation from electrical energy to mechanical energy with large bending strain response under low activation voltage. This paper mainly focuses on a review on optical and micromanipulation applications of IPMCs as soft actuators. After presenting the general mechanism of sensing and actuating in IPMCs, recent progresses are discussed about the preparation process and practical technologies, especially for aided manufacturing techniques defined as the methods to fabricate IPMC into all kinds of shapes in terms of the demands, which are reviewed for the first time. Then, a number of recent IPMC applications for optical actuators, grippers and catheters are reviewed and investigated in this paper. Further developments and suggestions for IPMCs are also discussed. Extensive previous researches are provided for references in detail.

Enhanced sensing performance of carboxyl graphene–ionic liquid attached ionic polymer–metal nanocomposite based polymer strain sensors

2018 ◽  
Vol 6 (31) ◽  
pp. 8395-8404 ◽  
Author(s):  
Varij Panwar ◽  
Gopinathan Anoop
Keyword(s):  
Ionic Liquid ◽  
Sulfonic Acid ◽  
Strain Sensors ◽  
Ionic Polymer ◽  
Blend Membrane ◽  
Acidic Ionic Liquid ◽  
Bending Strain ◽  
Polymer Metal ◽  
Polystyrene Sulfonic Acid ◽  
Metal Nanocomposite

Here, we show that biocompatible IPMNC sensors based on a carboxyl graphene–acidic ionic liquid–polyvinylpyrrolidone–polystyrene sulfonic acid ionic blend membrane can generate a high sensing current (6 mA cm−2) with a bending strain of 0.009.

Low voltage actuator using ionic polymer metal nanocomposites based on a miscible polymer blend

2015 ◽  
Vol 3 (39) ◽  
pp. 19718-19727 ◽  
Author(s):  
Varij Panwar ◽  
Jin-Han Jeon ◽  
Gopinathan Anoop ◽  
Hyeon Jun Lee ◽  
Il-Kwon Oh ◽  
...  
Keyword(s):  
Polymer Blend ◽  
Low Voltage ◽  
Ionic Polymer ◽  
Blend Membrane ◽  
Polymer Metal ◽  
Metal Nanocomposites

An actuator based on a miscible [P(VDF-TrFE)]/PVP/PSSA polymer blend membrane shows a large actuation displacement and force at a low voltage of 1 V compared to those of commercial Nafion and PVDF based actuators.

Analysis on enhancing the sensing behavior of ionic polymer metal composite based sensors

2020 ◽  
pp. 1045389X2095253
Author(s):  
J Sakthi Swarrup ◽  
Ranjan Ganguli ◽  
Giridhar Madras
Keyword(s):  
Water Uptake ◽  
Low Frequency ◽  
Micro Air Vehicles ◽  
Metal Composite ◽  
Ionic Polymer Metal Composite ◽  
Specific Mass ◽  
Ionic Polymer ◽  
Depth Analysis ◽  
Polymer Metal ◽  
Mass Level

In this paper, an in-depth analysis of IPMC (ionic polymer metal composite) as sensors is performed, motivated by application to flapping wing micro air vehicles. The effect of water uptake for different IPMC samples reveals a correlation between IPMC metal content and water uptake. The effect of introducing a mass to the end of High-frequency IPMC (HFI ∼ 20.9 Hz) sensor shows an improvement in the IPMC sensing behavior, whereas, for the Low-frequency IPMC (LFI ∼ 8.9 Hz) sensor, there is a reverse trend. Gold (Au) coating on an HFI sensor results in a decrease in resonant frequency. Different mass loaded on the Au coated HFI beams reveals that the pre-bending by adding end mass to HFI sensor is beneficial up to a specific mass level, after which the sensing voltage decreases. The optimized mass loading for the Au coated HFI is determined.

scholarly journals Novel ionic polymer–metal composite actuator based on sulfonated poly(1,4-phenylene ether-ether-sulfone) and polyvinylidene fluoride/sulfonated graphene oxide

RSC Advances ◽  
2018 ◽  
Vol 8 (45) ◽  
pp. 25423-25435 ◽  
Author(s):  
Ajahar Khan ◽  
Ravi Kant Jain ◽  
Bhaskar Ghosh ◽  
Inamuddin Inamuddin ◽  
Abdullah M. Asiri
Keyword(s):  
Graphene Oxide ◽  
Polyvinylidene Fluoride ◽  
Metal Composite ◽  
Ionic Polymer Metal Composite ◽  
Ionic Polymer ◽  
Sulfonated Graphene ◽  
Composite Actuator ◽  
Polymer Metal ◽  
Sulfonated Poly

In the present work, sulfonated graphene oxide and sulfonated poly(1,4-phenylene ether-ether-sulfone) were blended with polyvinylidene fluoride to create a novel ionic polymer–metal composite actuator with enhanced performance.

scholarly journals Exfoliated WS2-Nafion Composite based Electromechanical Actuators

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Masoud S. Loeian ◽  
Dominika A. Ziolkowska ◽  
Farhad Khosravi ◽  
Jacek B. Jasinski ◽  
Balaji Panchapakesan
Keyword(s):  
Water Uptake ◽  
Excitation Frequency ◽  
Cyclic Strain ◽  
Electrical Energy ◽  
Mechanical Analysis ◽  
Scanning Calorimetry ◽  
Electromechanical Actuators ◽  
Solution Cast ◽  
Conversion Technologies ◽  
Electromechanical Actuation

Abstract The ability to convert electrical energy into mechanical motion is of significant interest in many energy conversion technologies. Here, we demonstrate the first liquid phase exfoliated WS2-Nafion nanocomposite based electro-mechanical actuators. Highly exfoliated layers of WS2 mixed with Nafion solution, solution cast and doped with Li+ was studied as electromechanical actuators. Resonant Raman spectroscopy, X-ray photo-electron-spectroscopy, differential scanning calorimetry, dynamic mechanical analysis, and AC impedance spectroscopy were used to study the structure, photoluminescence, water uptake, mechanical and electromechanical actuation properties of the exfoliated nanocomposites. A 114% increase in elastic modulus (dry condition), 160% increase in proton conductivity, 300% increase in water uptake, cyclic strain amplitudes of ~0.15% for 0.1 Hz excitation frequency, tip displacements greater than nanotube-Nafion and graphene-Nafion actuators and continuous operation for more than 5 hours is observed for TMD-Nafion actuators. The mechanism behind the increase in water uptake is a result of oxygen atoms occupying the vacancies in the hydrophilic exfoliated flakes and subsequently bonding with water, not possible in Nafion composites based on carbon nanotube and graphene.

New ionic polymer-metal composite actuators based on PVDF/PSSA/PVP polymer blend membrane

2011 ◽  
Vol 51 (9) ◽  
pp. 1730-1741 ◽  
Author(s):  
Varij Panwar ◽  
Bong-Sik Kang ◽  
Jong-Oh Park ◽  
Suk-Ho Park
Keyword(s):  
Polymer Blend ◽  
Metal Composite ◽  
Ionic Polymer Metal Composite ◽  
Ionic Polymer ◽  
Blend Membrane ◽  
Polymer Metal

Reduction of structural vibrations with the piezoelectric stacks ring

2020 ◽  
Vol 64 (1-4) ◽  
pp. 729-736
Author(s):  
Jincheng He ◽  
Xing Tan ◽  
Wang Tao ◽  
Xinhai Wu ◽  
Huan He ◽  
...  
Keyword(s):  
Vibration Control ◽  
Mechanical Energy ◽  
Electrical Energy ◽  
Structural Vibrations ◽  
Rotor Systems ◽  
Fea Model ◽  
Piezoelectric Stacks ◽  
Shunt Damping ◽  
Reduction Effect ◽  
Euler Bernoulli Beam

It is known that piezoelectric material shunted with external circuits can convert mechanical energy to electrical energy, which is so called piezoelectric shunt damping technology. In this paper, a piezoelectric stacks ring (PSR) is designed for vibration control of beams and rotor systems. A relative simple electromechanical model of an Euler Bernoulli beam supported by two piezoelectric stacks shunted with resonant RL circuits is established. The equation of motion of such simplified system has been derived using Hamilton’s principle. A more realistic FEA model is developed. The numerical analysis is carried out using COMSOL® and the simulation results show a significant reduction of vibration amplitude at the specific natural frequencies. Using finite element method, the influence of circuit parameters on lateral vibration control is discussed. A preliminary experiment of a prototype PSR verifies the PSR’s vibration reduction effect.

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