3D-printed electroactive polymer force-actuator for large and high precise optical mirror applications

Thetpraphi, Kritsadi; Kanlayakan, Waroot; Chaipo, Suphita; Moretto, Gil; Kuhn, J. R.; Audigier, David; Le, Minh‐Quyen; Cottinet, Pierre‐Jean; Petit, Lionel; Capsal, Jean‐Fabien

doi:10.1016/j.addma.2021.102199

Cited by 13 publications

(9 citation statements)

References 20 publications

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“…[70,71] In recent years, as the technique matures, a growing number of 3D printing approaches have emerged based on inkjet, laser, extrusion, melt electrowriting (MEW), etc., through which a high degree of automation of soft films with actuating capabilities could be fabricated. [48][49][50][51][52][53][54][55][56] Inkjet printing is a programmed process of depositing ink droplets on the substrate controlled by computers, suitable for the fabrication of responsible hydrogel actuators which are polymerized by UV light. [57] Laser-based Reproduced with permission.…”

Section: D Printingmentioning

confidence: 99%

Smart Film Actuators for Biomedical Applications

Zhang

Wang

Qiao

et al. 2022

Small

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Taking inspiration from the extremely flexible motion abilities in natural organisms, soft actuators have emerged in the past few decades. Particularly, smart film actuators (SFAs) demonstrate unique superiority in easy fabrication, tailorable geometric configurations, and programmable 3D deformations. Thus, they are promising in many biomedical applications, such as soft robotics, tissue engineering, delivery system, and organ‐on‐a‐chip. In this review, the latest achievements of SFAs applied in biomedical fields are summarized. The authors start by introducing the fabrication techniques of SFAs, then shift to the topology design of SFAs, followed by their material selections and distinct actuating mechanisms. After that, their biomedical applications are categorized in practical aspects. The challenges and prospects of this field are finally discussed. The authors believe that this review can boost the development of soft robotics, biomimetics, and human healthcare.

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Section: D Printingmentioning

confidence: 99%

Smart Film Actuators for Biomedical Applications

Zhang

Wang

Qiao

et al. 2022

Small

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“…To achieve the full performance of bearings’ CM, the developed sensor must fulfil the following criteria: mechanically flexible, adaptable to different sizes and shapes, reasonable cost, easy process, and low environmental impact. In this situation, the printing technique becomes a viable option for achieving the deposition of multiple-layered materials in additive manufacturing (AM) that are of various sizes and shapes [ 27 ]. In particular, among the various methods currently in use [ 28 , 29 , 30 , 31 , 32 ], screen printing appears to be a quick, effective, straightforward, durable, and inexpensive process that may be used on an industrial scale [ 33 , 34 , 35 ].…”

Section: Introductionmentioning

confidence: 99%

Design Rules of Bidirectional Smart Sensor Coating for Condition Monitoring of Bearings

Nguyen

Bernadet

et al. 2023

Polymers

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This paper reports a novel monitoring technique of bearings’ bidirectional load (axial and radial) based on a smart sensor coating, which is screen printed onto the surface of a cross-shaped steel substrate. To ensure the accuracy and stability of measurement as well as the durability of the printed coating, the developed prototype is built according to design rules commonly used in electronic circuits. The finite element model (FEM) is used to predict the mechanical property of the tested substrate under either unidirectional or bidirectional loads. Regarding the output voltage of the piezoelectric sensor, experimental results are revealed to be well-corelated to the numerical simulation. It is pointed out that the output signal generated from the sensor (electrode) could be particularly affected due to the capacitive parasite coming from the conductive tracks (CTs). Such a phenomenon might be reduced by printing them on the dielectric layer rather than on the piezocomposite layer. The study also investigates a highly anisotropic shape of electrodes (rectangular instead of circle), indicating that the orientation of such electrodes (axial or radial) does affect the output measurement. To sum up, the high performance of a sensor network coating depends not only on the ultimate characteristics of its own materials, but also on its structural design. Such an issue has been rarely reported on in the literature, but is nonetheless crucial to achieving reliable condition monitoring of bearings, especially for multidirectional loads—a key signature of early failure detection.

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“…Nowadays, studies on new conductive inks are very common [7][8][9][10] . Indeed, several researchers have reported on new types of conductive inks, water or solvent based, for different printing technologies, namely screen printing, 3D printing, inkjet printing, flexography [11][12][13][14][15][16] . Previous work covers several types of elements, conductive ink and their conductive properties.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of a smart stretchable resistive heater textile using printed electronic coatings: towards application in automobile

Diatezo¹,

Le²,

Tonellato³

et al. 2023

Active and Passive Smart Structures and Integrated Systems XVII

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Intelligent textiles are predicted to see a surprising development in the future. The consequence of this revived interest has been the growth of automobile industry and the improvement of innovative methods for the incorporation of electrical and thermal features into textiles materials. In the present work, the development of a smart stretchable heating device integrated into a car-seat headrest has been identified as a target application. The need for smart conductive materials is becoming increasingly apparent, but they still represent a great challenge for the heating textile area, particularly in additive manufacturing. Polymer-based composites reinforced with copper and carbon powders, attractive as advanced coatings, seems to be good solutions to this issue. Such composites are now acquainted as ideal materials for electronic device engineering and fabrication, thanks to their excellent electrical and thermal conductivities while maintaining suitable mechanical compliance. For easier process and integration, an extrusion 3D printer is employed to achieve thin films coated on the surface of the textile substrate. The developed heater device consists of two principal copper electrodes (so-called power bus), and one heating resistor made of carbon composites designed in different configurations. Finite element models (FEM) are developed to predict the heating behavior of the tested fabric substrates under different pattern suggestions. Experimental measurements via a thermal camera are in consistent with the numerical solutions. It is pointed out that the design optimization based on an adequate tuning of the pattern’s parameters allows to solve inevitable matters in terms of temperature regularity and overheating effect.

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3D-printed electroactive polymer force-actuator for large and high precise optical mirror applications

Cited by 13 publications

References 20 publications

Smart Film Actuators for Biomedical Applications

Smart Film Actuators for Biomedical Applications

Design Rules of Bidirectional Smart Sensor Coating for Condition Monitoring of Bearings

Enhancement of a smart stretchable resistive heater textile using printed electronic coatings: towards application in automobile

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