An easily fabricated high performance ionic polymer based sensor network

Zhu, Zicai; Wang, Yanjie; Hu, Xiaopin; Sun, Xiaofei; Chang, Longfei; Lü, Peng

doi:10.1063/1.4961529

Cited by 21 publications

(15 citation statements)

References 19 publications

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“… Conceptual design of an ionic polymer pressure sensor derived from the IPMC structure (Zhu et al, 2016a ). In (b), the core is a single electrode wire, and the sheath is a Nafion membrane.…”

Section: Optimization Strategies In Ipmc Actuationmentioning

confidence: 99%

“…The main deficiency that restricts IPMC use as sensors is its low electrical response. To increase the output voltage, Zhu et al proposed a novel IPMC sensor design with a 3 × 3 array that was achieved by solution casting (Figure 3) (Zhu et al, 2016a). Two different voltage responses were generated when pressure was FIGURE 3 | Conceptual design of an ionic polymer pressure sensor derived from the IPMC structure (Zhu et al, 2016a).…”

Section: Ipmc As a Sensormentioning

confidence: 99%

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A Compact Review of IPMC as Soft Actuator and Sensor: Current Trends, Challenges, and Potential Solutions From Our Recent Work

et al. 2019

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Recently, attempts have been made to develop ionic polymer–metal composite (IPMC), which is garnering growing interest for ionic artificial muscle, as a soft actuator and sensor due to its inherent properties of low weight, flexibility, softness, and particularly, its efficient transformation of electrical energy into mechanical energy, with large bending strain response under a low activation voltage. In this paper, we focused on several current deficiencies of IPMC that restrict its application, such as non-standardized preparation steps, relaxation under DC voltage, solvent evaporation, and poor output force. Corresponding solutions to overcome the abovementioned problems have recently been proposed from our point of view and developed through our research. After a brief introduction to the working mechanism of IPMC, we here investigate the key factors that influence the actuating performance of IPMC. We also review the optimization strategies in IPMC actuation, including those for preparation steps, additive selection for a thick casting membrane, solvent substitutes, water content, encapsulation, etc. With consideration of the role of the interface electrode, its effects on the performance of IPMC are revealed based on our previous work. Finally, we also discuss IPMCs as potential sensors theoretically and experimentally. The elimination of the deficiencies of IPMC will promote its applications in soft robotics.

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Section: Optimization Strategies In Ipmc Actuationmentioning

confidence: 99%

Section: Ipmc As a Sensormentioning

confidence: 99%

A Compact Review of IPMC as Soft Actuator and Sensor: Current Trends, Challenges, and Potential Solutions From Our Recent Work

et al. 2019

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“…IPMCs can produce large deflections at low voltage (<5 V), and generate a corresponding electrical response in the process of mechanical bending [5][6][7]. IPMCs have been used in different fields such as biomechanical and biomedical applications, robotics, flexible sensing and micro-electro-mechanical system (MEMS), as well as the aerospace and vehicles industry [8][9][10][11][12]. The IPMC is comprised of an ion-exchange-polymer membrane and two metal electrodes plated on the both sides of the Nafion membrane [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Actuation of Cu-Ionic Polymer Metal Composite

Yang

Zhang

et al. 2020

Polymers

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In this study, Cu-Ionic polymer metal composites (Cu-IPMC) were fabricated using the electroless plating method. The properties of Cu-IPMC in terms of morphology, water loss rate, adhesive force, surface resistance, displacements, and tip forces were evaluated under direct current voltage. In order to understand the relationship between lengths and actuation properties, we developed two static models of displacements and tip forces. The deposited Cu layer is uniform and smooth and contains about 90% by weight of copper, according to the energy-dispersive X-ray spectroscopy (EDS) analysis data obtained. The electrodes adhere well (level of 5B) on the membrane, to ensure a better conductivity and improve the actuation performance. The penetration depth of needle-like electrodes can reach up to around 70 μm, and the structure shows concise without complex branches, to speed up the actuation. Overall the maximum displacement increased as the voltage increased. The applied voltage for the maximum force output is 8–9 V. The root mean square error (RMSE) and determination coefficient (DC) of the displacement and force models are 1.66 and 1.23, 0.96 and 0.86, respectively.

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“…Not only can it produce large deformations at low voltage, but IPMC will also generate a corresponding electrical response when subjected to mechanical bending [4,5,6,7]. These characteristics of IPMC have enormous application potential in the fields of biomimetic machine biomedicine, flexible sensing, and micro-electro-mechanical system (MEMS) [8,9,10,11,12].…”

Section: Introductionmentioning

confidence: 99%

The Effects of Dimensions on the Deformation Sensing Performance of Ionic Polymer-Metal Composites

Wang

Zhu

et al. 2019

Sensors

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As an excellent transducer, ionic polymer-metal composites (IPMCs) can act as both an actuator and a sensor. During its sensing process, many factors, such as the water content, the cation type, the surface electrode, and the dimensions of the IPMC sample, have a considerable impact on the IPMC sensing performance. In this paper, the effect of dimensions focused on the Pd-Au typed IPMC samples with various thicknesses, widths, and lengths that were fabricated and their deformation sensing performances were tested and estimated using a self-made electromechanical sensing platform. In our experiments, we employed a two-sensing mode (both current and voltage) to record the signals generated by the IPMC bending. By comparison, it was found that the response trend was closer to the applied deformation curve using the voltage-sensing mode. The following conclusions were obtained. As the thickness increased, IPMC exhibited a better deformation-sensing performance. The thickness of the sample changed from 50 μm to 500 μm and corresponded to a voltage response signal from 0.3 to 1.6 mV. On the contrary, as the length increased, the sensing performance of IPMC decreased when subjected to equal bending. The width displayed a weaker effect on the sensing response. In order to obtain a stronger sensing response, a thickness increase, together with a length reduction, of the IPMC sample is a feasible way. Also, a simplified static model was proposed to successfully explain the sensing properties of IPMC with various sizes.

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An easily fabricated high performance ionic polymer based sensor network

Cited by 21 publications

References 19 publications

A Compact Review of IPMC as Soft Actuator and Sensor: Current Trends, Challenges, and Potential Solutions From Our Recent Work

A Compact Review of IPMC as Soft Actuator and Sensor: Current Trends, Challenges, and Potential Solutions From Our Recent Work

Fabrication and Actuation of Cu-Ionic Polymer Metal Composite

The Effects of Dimensions on the Deformation Sensing Performance of Ionic Polymer-Metal Composites

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