Relevant bibliographies by topics / Fiber spinning instabilities

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters

Academic literature on the topic 'Fiber spinning instabilities'

Author: Grafiati
Published: 4 June 2021
Last updated: 5 February 2022

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Journal articles on the topic "Fiber spinning instabilities"

1

Hufenus, Rudolf, Yurong Yan, Martin Dauner, and Takeshi Kikutani. "Melt-Spun Fibers for Textile Applications." Materials 13, no. 19 (September 26, 2020): 4298. http://dx.doi.org/10.3390/ma13194298.

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Textiles have a very long history, but they are far from becoming outdated. They gain new importance in technical applications, and man-made fibers are at the center of this ongoing innovation. The development of high-tech textiles relies on enhancements of fiber raw materials and processing techniques. Today, melt spinning of polymers is the most commonly used method for manufacturing commercial fibers, due to the simplicity of the production line, high spinning velocities, low production cost and environmental friendliness. Topics covered in this review are established and novel polymers, additives and processes used in melt spinning. In addition, fundamental questions regarding fiber morphologies, structure-property relationships, as well as flow and draw instabilities are addressed. Multicomponent melt-spinning, where several functionalities can be combined in one fiber, is also discussed. Finally, textile applications and melt-spun fiber specialties are presented, which emphasize how ongoing research efforts keep the high value of fibers and textiles alive.
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2

Yang, D. K., and W. R. Krigbaum. "Fiber spinning from the nematic melt. VI. Flow instabilities in the 30:70 copolyester of hydroxybenzoic acid and 2-hydroxy-6-naphthoic acid." Journal of Polymer Science Part B: Polymer Physics 27, no. 9 (August 1989): 1837–51. http://dx.doi.org/10.1002/polb.1989.090270905.

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3

Krigbaum, W. R., C. K. Liu, and D. K. Yang. "Fiber spinning from the nematic melt. V. Flow instabilities in the 75:25 copolyester of p-hydroxybenzoic acid and 2-hydroxy-6-naphthoic acid." Journal of Polymer Science Part B: Polymer Physics 26, no. 8 (August 5, 1988): 1711–25. http://dx.doi.org/10.1002/polb.1988.090260811.

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4

Zhou, Chunfeng, and Satish Kumar. "Thermal instabilities in melt spinning of viscoelastic fibers." Journal of Non-Newtonian Fluid Mechanics 165, no. 15-16 (August 2010): 879–91. http://dx.doi.org/10.1016/j.jnnfm.2010.04.009.

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5

Cao, Yu, Wen-Jing Yang, Xiao-Wei Guo, Xin-Hai Xu, Juan Chen, Xue-Jun Yang, and Xue-Feng Yuan. "Role of Nonmonotonic Constitutive Curves in Extrusion Instabilities." International Journal of Polymer Science 2015 (2015): 1–8. http://dx.doi.org/10.1155/2015/312839.

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Flow instabilities of non-Newtonian fluids severely hamper the quality of products during various chemical processes, such as fibre spinning, extrusion, and film blowing. The origin of extrusion instability has been studied over many decades. However, no consensus has been reached among the research community so far. In this paper, the possible cause of extrusion instabilities is explored using the finitely extensible nonlinear elastic conformation-dependent (FENE-CD) model with a nonmonotonic constitutive curve. Many well-documented experimental phenomena are reproduced in our simulations, and it could be concluded that the nonmonotonic constitutive curve plays an essential role in extrusion instabilities. In addition, the results imply that the die exit singularity may generate or magnify oscillations.
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6

RUO, AN-CHENG, FALIN CHEN, CHIH-ANG CHUNG, and MIN-HSING CHANG. "Three-dimensional response of unrelaxed tension to instability of viscoelastic jets." Journal of Fluid Mechanics 682 (July 15, 2011): 558–76. http://dx.doi.org/10.1017/jfm.2011.255.

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Understanding the cause of instability of viscoelastic liquid jets is of fundamental importance to realise practical applications such as ink-jet printing, fuel injection spraying, and fibre spinning. For common viscoelastic fluids, the elastic stresses caused by the stretching of entangled polymeric chains at the nozzle can persist along the jet for a long downstream distance far away from the exit. Unrelaxed elastic tension has been regarded as a factor responsible for the delay in the breakup of viscoelastic jets. The present study performs a complete linear stability analysis to obtain deeper insights into the response of unrelaxed elastic tension to the onset of three-dimensional instability in viscoelastic jets. Results show that the elastic effect is multidimensional. In the absence of the unrelaxed tension, the elastic force, characterised by a Deborah number, has a slightly destabilising influence on both axisymmetric and non-axisymmetric disturbances. However, when the unrelaxed tension arises, the elastic force begins to suppress the instabilities driven by surface tension and the wind-induced effect to a great extent. In particular, once the tension exceeds a threshold, some novel oscillating non-axisymmetric modes emerge because of stimulation by the relaxation of the elastic energy, causing a variety of asymmetrical deformations.
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Dissertations / Theses on the topic "Fiber spinning instabilities"

1

Gagov, Atanas. "INSTABILITIES IN ELONGATION FLOWS OF POLYMERS AT HIGH DEBORAH NUMBERS." University of Akron / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=akron1191895515.

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2

Oh, Kyung Hee. "Effect of shear, elongation and phase separation in hollow fiber membrane spinning." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/53992.

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The spinning process of hollow fiber membranes was investigated with regards to two fundamental phenomena: flow (shear and elongation) and phase separation. Quantitative analysis of phase separation kinetics of binary (polymer/solvent) and ternary (polymer/solvent/volatile co-solvent) polymer solution was carried out with a newly developed microfluidic device. The device enables visualization of in situ phase separation and structure formation in controlled vapor and liquid environments. Results from these studies indicated that there was a weak correlation between phase separation kinetics and macroscopic defect (macrovoid) formation. In addition, the effect of shear and elongation on membrane morphology was tested by performing fiber extrusion through microfluidic channels. It was found that the membrane morphology is dominated by different factors depending on the rate of deformation. At high shear rates typical of spinning processes, shear was found to induce macrovoid formation through normal stresses, while elongation suppressed macroscopic defect formation. Furthermore, draw resonance, one of the key instabilities that can occur during fiber spinning, was investigated. It was found that draw resonance occurs at aggressive elongation condition, and could be suppressed by enhanced phase separation kinetics. These results can be used as guidelines for predicting hollow fiber membrane spinnability.
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Book chapters on the topic "Fiber spinning instabilities"

1

"Fiber Spinning and Film Blowing Instabilities." In Polymer Processing Instabilities, 339–400. CRC Press, 2004. http://dx.doi.org/10.1201/9781420030686-14.

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