M3D aerosol jet printed buckypaper multifunctional sensors for composite structural health monitoring

Siddique, Sabrina; Park, Jin Gyu; Andrei, Petru; Liang, Richard

doi:10.1016/j.rinp.2019.02.030

Cited by 20 publications

(20 citation statements)

References 26 publications

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“…The strain sensor synthesized in this work demonstrated better mechanical properties such as tensile strength, Young's modulus, and elongation-at-break of 200.55 MPa, 6.59 GPa, and 6.79%, respectively. Another important aspect of the strain sensor is its gauge factor which the selected sample has of 1.33, which is higher than reported gauge factors of buckypaper strain sensors such as 0.49 19 , 0.34 20 , and 0.9 to 1.3 21 . Hence, this strain sensor proves to be a significant addition to the existing range of strain sensors and may provide a wide range of applications in various fields of life.…”

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confidence: 71%

Graphene/PVA buckypaper for strain sensing application

Mehmood

Mubarak

Khalid

et al. 2020

Sci Rep

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Strain sensors in the form of buckypaper (BP) infiltrated with various polymers are considered a viable option for strain sensor applications such as structural health monitoring and human motion detection. Graphene has outstanding properties in terms of strength, heat and current conduction, optics, and many more. However, graphene in the form of BP has not been considered earlier for strain sensing applications. In this work, graphene-based BP infiltrated with polyvinyl alcohol (PVA) was synthesized by vacuum filtration technique and polymer intercalation. First, Graphene oxide (GO) was prepared via treatment with sulphuric acid and nitric acid. Whereas, to obtain high-quality BP, GO was sonicated in ethanol for 20 min with sonication intensity of 60%. FTIR studies confirmed the oxygenated groups on the surface of GO while the dispersion characteristics were validated using zeta potential analysis. The nanocomposite was synthesized by varying BP and PVA concentrations. Mechanical and electrical properties were measured using a computerized tensile testing machine, two probe method, and hall effect, respectively. The electrical conducting properties of the nanocomposites decreased with increasing PVA content; likewise, electron mobility also decreased while electrical resistance increased. The optimization study reports the highest mechanical properties such as tensile strength, Young’s Modulus, and elongation at break of 200.55 MPa, 6.59 GPa, and 6.79%, respectively. Finally, electrochemical testing in a strain range of ε ~ 4% also testifies superior strain sensing properties of 60 wt% graphene BP/PVA with a demonstration of repeatability, accuracy, and preciseness for five loading and unloading cycles with a gauge factor of 1.33. Thus, results prove the usefulness of the nanocomposite for commercial and industrial applications.

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confidence: 71%

Graphene/PVA buckypaper for strain sensing application

Mehmood

Mubarak

Khalid

et al. 2020

Sci Rep

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“…Buckypapers have been extensively used in a variety of applications as filters [ 9 ], fire retardancy materials [ 10 ], electromagnetic shielding materials [ 11 , 12 ], catalyst supports [ 13 , 14 ], actuators [ 15 , 16 ], sensors [ 17 , 18 ], supercapacitors [ 19 , 20 ], and fuel cell electrodes [ 21 , 22 ]. They have even been used in medical applications [ 23 ], but probably the most widespread usage of them is the incorporation into polymeric matrices for the enhancement of their mechanical, electrical, or thermal properties [ 7 , 8 , 24 , 25 , 26 ].…”

Section: Introductionmentioning

confidence: 99%

Mechanical, Electrical, and Thermal Properties of Carbon Nanotube Buckypapers/Epoxy Nanocomposites Produced by Oxidized and Epoxidized Nanotubes

et al. 2020

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High volume fraction carbon nanotube (CNT) composites (7.5–16% vol.) were fabricated by the impregnation of CNT buckypapers into epoxy resin. To enhance the interfacial reaction with the epoxy resin, the CNTs were modified by two different treatments, namely, an epoxidation treatment and a chemical oxidation. The chemical treatment was found to result in CNT length severance and to affect the porosity of the buckypapers, having an important impact on the physico-mechanical properties of the nanocomposites. Overall, the mechanical, electrical, and thermal properties of the impregnated buckypapers were found to be superior of the neat epoxy resin, offering an attractive combination of mechanical, electrical, and thermal properties for multifunctional composites.

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“…Siddique et al. [ 186 ] reported an aerosol jet printed strain sensor for structural health monitoring. CNT sheets, with different blending ratio, were prepared by dispersing CNTs in three commercial resins namely vinyl ester, epoxy, and silicone.…”

Section: Current Trends In Jet‐printed Physical Sensorsmentioning

confidence: 99%

Section: Current Trends In Jet‐printed Physical Sensorsmentioning

confidence: 99%

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Droplet‐Based Techniques for Printing of Functional Inks for Flexible Physical Sensors

2021

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Printing processes can be broadly classified into "contact" and "non-contact" printing. In contact printing, the ink is transferred directly from a patterned medium (engraved roller or stencil) onto a substrate, while in non-contact printing the ink droplets are ejected from a series of nozzles on the intended surface. [9] Offset, flexography, gravure, and screen printing are among the most common contact printing methods, while jet-printing processes constitute noncontact counterpart. Jet-printing involves a series of computer-controlled pattern reproduction techniques, which can be subdivided into inkjet, aerosol-jet, and electrohydrodynamic-jet printing. In these techniques, the ink is deposited in the form of droplets hence named "droplet-based" printing. Inkjet is a wellestablished technology, which is now finding its way in to industries, [10] while aerosol jet is a relatively new technology developed for printing on non-planar substrates. The first prototype of electrohydrodynamic jet printing was patented for graphical patterning, but later on altered for high-resolution electronic printing in nanometer scale. [11] Flexible physical sensors fabricated by printing techniques are revolutionizing healthcare sector by befitting portable health watching and remote medical solutions. [12] These devices not only enable long-term tracking of physiological signals, but also enormously assist in delocalization of medical services from hospitals to homes. Flexible physical biosensors are widely used to record various biophysical signals such as pulse rate, body temperature, vocal fold vibrations, skeletal muscle contractions, closure of heart valves, breath rate, and movements in the gastrointestinal tract. [13] However current devices fabricated by printing techniques, suffer from low sensitivity and poor repeatability, therefore there is room for huge improvement in this field through specially formulated inks and printing process control. [14] Herein, we present a comprehensive discussion on basics of droplet-based printing techniques (inkjet, aerosol jet, and electrohydrodynamic jet), followed by an in-depth review of metal, carbon, polymer, and ceramic functional inks. We also delve into various post-processing (sintering) methods used to enable flexible devices on substrates with low thermal resistance. The field of flexible devices is vast, and the focus of this paper is on flexible physical sensors fabricated through droplet-based Printed electronics (PE) is an emerging technology that uses functional inks to print electrical components and circuits on variety of substrates. This technology has opened up new possibilities to fabricate flexible, bendable, and form-fitting devices at low-cost and fast speed. There are different printing technologies in use, among which droplet-based techniques are of great interest as they provide the possibility of printing computer-controlled design patterns with high resolution, and greater production flexibility. Nanomaterial inks form the heart of this technology, enablin...

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M3D aerosol jet printed buckypaper multifunctional sensors for composite structural health monitoring

Cited by 20 publications

References 26 publications

Graphene/PVA buckypaper for strain sensing application

Graphene/PVA buckypaper for strain sensing application

Mechanical, Electrical, and Thermal Properties of Carbon Nanotube Buckypapers/Epoxy Nanocomposites Produced by Oxidized and Epoxidized Nanotubes

Droplet‐Based Techniques for Printing of Functional Inks for Flexible Physical Sensors

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