Influence of injection air pressure on the microcapillary formation within extruded plastic films

Cao, Jiapei; Xu, Zhongbin; Wang, Baicun; Chen, Rongjun

doi:10.1007/s10853-012-6715-5

Cited by 13 publications

(9 citation statements)

References 25 publications

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“…1a) and is fabricated by polymer melt extrusion within a slit die with a gasentrainment assembly that has a row of hollow needles. 22 To fabricate the step-emulsication device, two parallel glass strips are attached at the end of a MCF, which create a shallow plateau, as shown in Fig. 1b.…”

Section: Experiments and Discussionmentioning

confidence: 99%

Collective generation of milliemulsions by step-emulsification

Huang

Eggersdorfer

et al. 2017

RSC Adv.

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Section: Experiments and Discussionmentioning

confidence: 99%

Collective generation of milliemulsions by step-emulsification

Huang

Eggersdorfer

et al. 2017

RSC Adv.

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“…A schematic diagram of the extrusion and air injection system of the MCFs used is shown in Figure . This system was previously developed by our team, [ 32 ] and mainly consists of a single‐screw extruder, a specially designed die with 28 injectors, a syringe pump, a quench bath, and a haul‐off device.…”

Section: Methodsmentioning

confidence: 99%

Solvent‐Free Generation of Foamed Microcapillary Films with a Dual Network of Interconnected Pores and Internal Channels

Zhao

Zheng

et al. 2020

Macro Materials & Eng

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A dual‐pore network is favored in applications such as tissue engineering scaffolds. In this paper, foamed microcapillary films (FMCFs) are prepared based on a poly(lactic acid)/poly(butylene succinate) blend using melt extrusion and batch foaming with supercritical carbon dioxide. Such films are characterized by multiple hollow microcapillaries (diameter of 100–360 µm) connected with cells (size of 3–194 µm, open‐cell content of over 80%) within the scaffold. By plugging the ends of the MCF before foaming, the formation of a solid skin layer is successfully avoided. Furthermore, the diameter of the microcapillaries of an FMCF can be adjusted using the designed foaming strategy. The effects of the foaming condition on the FMCF foaming behavior are also investigated. When other conditions are fixed, the foaming behavior changes dramatically when the foaming temperature changes within the range of 120–123 °C.

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“…The micro-capillary film used in that study was manufactured from linear low-density polyethylene using mature extrusion technology in our previous study. 22 The device shown in Fig. 1B consists of a microchannel, an electrowetting 'step', a DC power supply, an embedded processor, and a syringe pump.…”

Section: All Article Content Except Where Otherwise Noted Is Licensmentioning

confidence: 99%

Creating monodispersed droplets with electrowetting-on-dielectric step emulsification

Huang

et al. 2018

AIP Advances

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Monodisperse droplets are important in drug screening, and cell-based and biochemical research. However, conventional methods for creating droplets, such as co-flow, T-junction and flow-focusing, have poor monodispersity because of fluctuations in the flow rate. Because step emulsification is based on the principle of Laplace pressure, it is insensitive to the flow rate and yields a constant and high monodispersity. In the present study, we combine electrowetting and step emulsification to reduce the negative influence of flow-rate fluctuations and to prepare highly monodisperse droplets. We demonstrate that the flow rate and voltage applied to the droplets can independently influence the droplet size. This method has great potential in chip-based bioanalysis and cell-based studies where highly monodisperse droplets are needed.

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Influence of injection air pressure on the microcapillary formation within extruded plastic films

Cited by 13 publications

References 25 publications

Collective generation of milliemulsions by step-emulsification

Collective generation of milliemulsions by step-emulsification

Solvent‐Free Generation of Foamed Microcapillary Films with a Dual Network of Interconnected Pores and Internal Channels

Creating monodispersed droplets with electrowetting-on-dielectric step emulsification

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