Nozzle Shape Guided Filler Orientation in 3D Printed Photo-curable Nanocomposites

Kim, Taeil; Trangkanukulkij, Ramita; Kim, Woo Soo

doi:10.1038/s41598-018-22107-0

Cited by 21 publications

(16 citation statements)

References 27 publications

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“…CNCs are reported to be aligned in a similar parallel way . AgNWs, typical anisotropic fillers with high aspect ratio, can be aligned according to the printing direction during the extrusion printing process . The alignment of CNCs along the printing direction in extrusion is also reported .…”

mentioning

confidence: 73%

“…[44] In concentrated suspensions, CNCs form a liquid crystalline phase with a chiral nematic order. [47] The alignment of CNCs along the printing direction in extrusion is also reported. [45,46] AgNWs, typical anisotropic fillers with high aspect ratio, can be aligned according to the printing direction during the extrusion printing process.…”

Section: Wwwadvelectronicmatdementioning

confidence: 96%

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3D Printed Disposable Wireless Ion Sensors with Biocompatible Cellulose Composites

Kim

Bao

Hausmann

et al. 2018

Adv Elect Materials

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Recent development for cellulose inks have provided methods to deal with important volume shrinkage resulting from the drying and evaporation of the dispersing solvent. [14] In order to make a reliable 3D printable ink, the relevance of understanding parameters such as the rheological properties (controlling the printability) [15] and the conductivity was evidenced by previous research. [16] Rheological aspects involve a shear-thinning behavior and the existence of a yield stress to enable a proper extrusion and shape fidelity of prior and after 3D printing. [17] The conductivity of the ink can be controlled by the addition of conductive fillers such as silver flakes, silver nanowires (AgNWs) as earlier research suggested. [18,19] Among other electrochemical sensor platforms, ion selective membrane sensors have been reported as efficient tools to detect ion analytes selectively from ion mixed solutions such as pH, [20][21][22][23] glucose, [24] or urea. [25] Furthermore, by integrating with Field Effect Transistors (FETs), the analyte information is quantitatively analyzed using Ion Selective Field Effect Transistors (ISFETs). [26][27][28] Recyclable ISFETs based on oxide semiconductors were also studied for sustainability. [29] High selectivity and stability enable ISFETs to be investigated for potential applications in biomedical and environmental fields. ISFETs are mainly controlled by the generated potential from ion selective electrodes and the generated potential influences the electrical performance of FETs. Therefore, variation of ion concentration is reflected by the fluctuation of drain current, drain voltage, or output voltage. Specially, wireless ion selective sensors are demonstrated to extract remotely ion concentration signals out of analyte solution. Consequently, a great interest was demonstrated over the past years in the fields of real-time monitoring and internet-of-things (IoT) applications. Research was conducted in integrating novel wireless technologies, such as RFID, [30][31][32][33][34] Bluetooth, [35,36] Zigbee, [37] or NFC [38] together with electrochemical sensors for wireless analytes information recovery. A conventional approach for wireless sensing with silicon-based chip technology has been already developed. [31] As the wireless communication technologies are becoming more crucial for internet-of-things (IoT) electronic devices, sensors have also been equipped with wireless data collection. A conventional way to make wireless sensor systems is to develop active sensor devices with silicon-based chip technologies integrated with an amplifier, a battery, a converter, among others. However, it is difficult to generate disposable inexpensive flexible sensors with all these rigid components. Here, 3D printed disposable wireless ion selective sensor systems with unique form factors, high sensitivity, and flexibility are reported. A 3D printable conductive ink is designed and optimized with cellulose nanofibers by addition of silver nanowires for sustainable and biocompatible sensor app...

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confidence: 73%

Section: Wwwadvelectronicmatdementioning

confidence: 96%

3D Printed Disposable Wireless Ion Sensors with Biocompatible Cellulose Composites

Kim

Bao

Hausmann

et al. 2018

Adv Elect Materials

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“…Kim et al. 49 also developed a similar model with different nozzle geometries (circular, flat) for photo-curable thermoset polymer nanocomposite. The model showed different fluidic behavior with the changes in nozzle shapes at the nozzle exit.…”

Section: Numerical Modeling Of Fff Processmentioning

confidence: 99%

“…A similar 3D model has been developed by Papon et al 48 with CNF/PLA non-Newtonian fluid, where the effect of nozzle outlet geometry on pressure drop, velocity, and temperature profile was investigated. Kim et al 49 also developed a similar model with different nozzle geometries (circular, flat) for photo-curable thermoset polymer nanocomposite. The model showed different fluidic behavior with the changes in nozzle shapes at the nozzle exit.…”

Section: Thermal and Fluid Flow Inside Liquefier And Nozzlementioning

confidence: 99%

Review on process model, structure-property relationship of composites and future needs in fused filament fabrication

Papon

Haque

2020

Journal of Reinforced Plastics and Composites

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This paper presents the state-of-the-art of additive manufacturing of composites for processing functional, load-bearing components. A general overview of different additive manufacturing methods is provided, and specific attention is focused on fused filament fabrication-based composites processing. Different process modeling strategies are summarized, and key aspects of these models are discussed. Significant results such as thermal and fluid flow characteristics, effects of nozzle geometry on melt flow, fiber orientation, bead spreading, and solidification, the formation of residual stresses, and deformation behavior are discussed from computational modeling perspective. The scientific advancement, model limitations, and future modeling needs are prescribed reviewing the current works. A general overview of material development in nano-micro-macro-scale reinforcement is also presented. Different length-scales of reinforcement has its own challenges and promises. The continuous fiber reinforcement has a great potential for being the next-generation composites manufacturing technology. However, the challenges in reducing the void content, better bonding between the fiber–matrix, and layer-layer adhesion, and process uncertainty are some of the key areas yet to advance. Based on the current limitations on computational modeling, materials development, and process modeling studies, future research needs and recommendations are provided.

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“…29 In ceramic/polymer nanocomposites, electrons can move from one nanowire to another when the nanowires are randomly distributed due to multiple cross contacts between wires. This tunneling effect 30,31 leads to lowering of breakdown strength. In contrast, if the ceramic nanowires are arranged in the polymer matrix in an orientated direction, e.g.…”

Section: Introductionmentioning

confidence: 99%

3D printing of anisotropic polymer nanocomposites with aligned BaTiO₃ nanowires for enhanced energy density

Luo

Zhou

et al. 2020

Mater. Adv.

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Nozzle Shape Guided Filler Orientation in 3D Printed Photo-curable Nanocomposites

Cited by 21 publications

References 27 publications

3D Printed Disposable Wireless Ion Sensors with Biocompatible Cellulose Composites

3D Printed Disposable Wireless Ion Sensors with Biocompatible Cellulose Composites

Review on process model, structure-property relationship of composites and future needs in fused filament fabrication

3D printing of anisotropic polymer nanocomposites with aligned BaTiO₃ nanowires for enhanced energy density

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Nozzle Shape Guided Filler Orientation in 3D Printed Photo-curable Nanocomposites

Cited by 21 publications

References 27 publications

3D Printed Disposable Wireless Ion Sensors with Biocompatible Cellulose Composites

3D Printed Disposable Wireless Ion Sensors with Biocompatible Cellulose Composites

Review on process model, structure-property relationship of composites and future needs in fused filament fabrication

3D printing of anisotropic polymer nanocomposites with aligned BaTiO3 nanowires for enhanced energy density

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3D printing of anisotropic polymer nanocomposites with aligned BaTiO₃ nanowires for enhanced energy density