Improved manufacturing process for printed cantilevers by using water removable sacrificial substrate

Rivadeneyra, Almudena; Salmerón, José F.; Agudo-Acemel, Manuel; López‐Villanueva, J. A.; Capitán-Vallvey, L.F.; Palma, A.

doi:10.1016/j.sna.2015.10.019

Cited by 17 publications

(18 citation statements)

References 30 publications

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“…Also, the change in capacitance while the cantilever was shaking was also measured at some values of acceleration, showing their potential for the development of printed capacitive accelerometers on flexible substrates. An improvement in this fabrication process was described in [111]. In this case, poly(vinyl alcohol) (PVA) was employed as sacrificial substrate, who can be dissolved in water and it does not react with the silver layer contrary to the acetone bath required for PMMA.…”

Section: Accelerometersmentioning

confidence: 99%

Recent Advances in Printed Capacitive Sensors

Rivadeneyra

López‐Villanueva

2020

Micromachines

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In this review paper, we summarize the latest advances in the field of capacitive sensors fabricated by printing techniques. We first explain the main technologies used in printed electronics, pointing out their features and uses, and discuss their advantages and drawbacks. Then, we review the main types of capacitive sensors manufactured with different materials and techniques from physical to chemical detection, detailing the main substrates and additives utilized, as well as the measured ranges. The paper concludes with a short notice on status and perspectives in the field.

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Section: Accelerometersmentioning

confidence: 99%

Recent Advances in Printed Capacitive Sensors

Rivadeneyra

López‐Villanueva

2020

Micromachines

Self Cite

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“…Palma and coworkers [ 20 ] presented a manufacturing process for the printing of suspended structures that could be used as capacitive accelerometers. These cantilevers were fabricated via screen-printing on PET with the result of delivering more flexibility to the final sensors.…”

Section: Sensor Applicationsmentioning

confidence: 99%

The Boom in 3D-Printed Sensor Technology

Xiao-yue

Guo

et al. 2017

Sensors

272

170

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Future sensing applications will include high-performance features, such as toxin detection, real-time monitoring of physiological events, advanced diagnostics, and connected feedback. However, such multi-functional sensors require advancements in sensitivity, specificity, and throughput with the simultaneous delivery of multiple detection in a short time. Recent advances in 3D printing and electronics have brought us closer to sensors with multiplex advantages, and additive manufacturing approaches offer a new scope for sensor fabrication. To this end, we review the recent advances in 3D-printed cutting-edge sensors. These achievements demonstrate the successful application of 3D-printing technology in sensor fabrication, and the selected studies deeply explore the potential for creating sensors with higher performance. Further development of multi-process 3D printing is expected to expand future sensor utility and availability.

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“…(Xu et al, 2017). 3D printing sensors have been achieved by several methods such as fused filament fabrication (FFF) (Alsharari et al, 2018;Dawoud et al, 2018), direct ink writing (DIW) (Muth et al, 2014), stereolithography (SLA) , laminated object manufacturing (LOM) , selective laser sintering (SLS) (Ambrosi et al, 2016), photopolymer jetting (Polyjet) (Laszczak et al, 2015), and binder jetting (3DP) (Rivadeneyra et al, 2015). The frequently used conductive fillers for strain sensing applications are metal nanoparticles [e.g., silver , copper (Credi et al, 2016;Saleh et al, 2019), and Ti/Au (Cho et al, 2015)] and carbon-based fillers [e.g., carbon nanotubes (CNT) (Czyżewski et al, 2009;Bautista-Quijano et al, 2010;Oliva-Avilés et al, 2011;Pedrazzoli et al, 2012a;Zhao et al, 2013;Georgousis et al, 2015), carbon nanofibre (Pedrazzoli et al, 2012a), graphene (Moriche et al, 2016a,b;Alsharari et al, 2018), and carbon black (Dawoud et al, 2018;Zhao et al, 2018)].…”

Section: Introductionmentioning

confidence: 99%

Fused Filament Fabrication of Piezoresistive Carbon Nanotubes Nanocomposites for Strain Monitoring

2020

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Conductive carbon nanotubes (CNT)/acrylonitrile butadiene styrene (ABS) nanocomposites parts were easily and successfully manufactured by fused filament fabrication (FFF) starting from composite filaments properly extruded at a laboratory scale. Specific specimens for strain monitoring application were properly evaluated in both short term and long term mechanical testing. In particular, samples of ABS filled with 6 wt.% of CNT were additively manufactured in two different infill patterns: HC (0 • /0 • ) and H45 (−45 • /+45 • ). The piezoresistivity behavior was investigated under various loading conditions such as ramp tensile tests at different rate and extension, and also creep and cyclic loading at room temperature. Experimental work revealed that the resistance changes in the conductive samples were properly detectable during stress or strain modification, as consequence of damage and/or reassembling of the percolation network. The measurement of the gauge factor in various testing conditions evidenced an initial higher sensitivity of the 3D-built parts within H45 pattern in comparison to the correspondent HC counterparts. The CNT conductive network path in the investigated samples seems to be reformed during creep and cycling experiments, showing a progressive reduction of gauge factor that seems to stabilize at about 2.5 for both HC and H45 samples after long term testing. These findings suggest that conductive CNT/ABS nanocomposites at 6 wt.% of loading can be successfully processed by FFF to produce stable strain sensors in the range −25 • and +60 • C, as confirmed by the constancy of resistivity in these temperatures.

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Improved manufacturing process for printed cantilevers by using water removable sacrificial substrate

Cited by 17 publications

References 30 publications

Recent Advances in Printed Capacitive Sensors

Recent Advances in Printed Capacitive Sensors

The Boom in 3D-Printed Sensor Technology

Fused Filament Fabrication of Piezoresistive Carbon Nanotubes Nanocomposites for Strain Monitoring

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