Fiber structure and properties of poly(ethylene-2,6-naphthalate) obtained by high-speed melt spinning

Wu, Gang; Li, Qingchun; Cuculo, John A.

doi:10.1016/s0032-3861(00)00122-1

Cited by 37 publications

(39 citation statements)

References 31 publications

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“…When the viscosity increased, the tenacity of the side by side conjugate fibers increased, whereas the elongation decreased. 3,7 To investigate the effect of viscosity on the properties of the conjugate fibers, the shrinkage ratio of fibers prepared under different experimental conditions was measured, and the results are shown in Figure 3. As can be seen in the figure, the conjugate fibers showed a high dry shrinkage ratio and a low wet shrinkage ratio compared with SD fibers.…”

Section: Resultsmentioning

confidence: 99%

“…These superfine fibers have excellent luster, texture, and appearance, characteristics that are extensively required in upscale textile goods, drainage textile goods, hygroscopicity knitwear, cleaners, and square luck. [3][4][5][6] The preparation methods of superfine fibers can be devided into direct spinning and conjugate spinning. Direct spinning is a method of spinning a single ingredient of the filament, and thereby producing a uniform product of the physical properties by fusing, wet process, and dry radiation.…”

Section: Introductionmentioning

confidence: 99%

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Conjugate Spun of Polyethylene Terephthalate Resin Modified with 1,4-Cyclohexanedimethanol

Bang¹,

Kim²,

Jin³

et al. 2011

Bulletin of the Korean Chemical Society

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In this study, conjugate fibers were prepared from 1,4-cyclohexanedimethanol-modified polyethylene terephthalate (PET) resin using side by side conjugate spinning, sea-island type conjugate spinning, and split type conjugate spinning methods, and the properties of the conjugate fibers were investigated via several techniques. When viscosity increased, the tenacity of side by side conjugate fibers was increased, whereas elongation decreased. The sea-island conjugate fibers showed lower weight loss and surface color difference (K/S) values relative to that of regular PET fibers at the same conditions. The SEM results indicate that orange type spilt readily produced at a temperature range of 120 -140 o C.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Conjugate Spun of Polyethylene Terephthalate Resin Modified with 1,4-Cyclohexanedimethanol

Bang¹,

Kim²,

Jin³

et al. 2011

Bulletin of the Korean Chemical Society

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show abstract

“…These results indicate that the crystal size varied with decreasing internal crystallinity. 13,14 The wet shrinkage ratio increased as the spinning temperature was increased up to 300 o C, which was due to the reduced orientation and crystallinity. Conversely, the wet shrinkage ratio decreased when the temperature rose above 300 o C. This can be attributed to the decomposition of polyester, which results in a polyester with a lower molecular weight.…”

Section: Resultsmentioning

confidence: 99%

Effects of Spinning Conditions on Properties of Polyester Yarn Prepared using an Ultra-high-speed Melt Spinning Technique Equipped with a Steam Chamber

Ho¹,

Kim

Jin

et al. 2010

Bulletin of the Korean Chemical Society

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In this study, the effects of the various parameters of spinning and drawing processes on the properties of polyester full drawn yarn (FDY) prepared by steam processing during high-speed spinning were investigated using several techniques. The wet shrinkage ratio of the FDY was able to be manipulated by controlling the temperature and draw ratio. The FDY made using the steam high speed spinning technique exhibited identical properties (such as tenacity, elongation, and wet shrinkage ratio) to that of regular FDY, made using the spin-draw process. FDY prepared using the steam process during high-speed spinning showed excellent dyeability. The dye pick-up of the polyester yarn spun at high-speed spinning was found to be improved when dyed under an atmospheric pressure of 100 o C. This result was the same as regular FDY dyed under a high pressure of 130 o C.

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“…The liquid polymer flows through the spinneret where it is cooled, either by active of passive means, and collected on a take-up wheel (Sperling, 2001). Wu et al (2001) have shown that fibers can be melt spun at higher velocities, up to 10 kilometers per minute.…”

Section: Melt Spinningmentioning

confidence: 99%

A characterization of micromanipulator controlled dry spinning of micro- and nanoscale polymer fibers.

Berry¹

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No current micro fabrication technique exists for producing roomtemperature, high-precision, point-to-point polymer nanofibers in three dimensions.Producing rounded structures in a third dimension is particularly difficult to accomplish with conventional planar micro fabrication techniques. Therefore, the purpose of this study is to characterize a novel method for fabricating such structures.In this investigation, PMMA micro-and nano-fibers have been fabricated using a technique which involves drawing a solvated polymer bridge between two liquid pools with a stylus positioned by an ultra-high-precision micromill. The solvent in the solution bridge rapidly evaporates, leaving a suspended PMMA fiber between the two pools. In order to characterize this process, fibers were drawn over a 1.8 mm silicon trench and fiber diameter was measured over a variety of different solution concentrations and polymer molecular weights. In addition, the fluid characteristics of the solutions were measured to allow for comparisons between fiber diameter and properties such as viscosity and surface tension.Fiber diameters ranging from 450 nm to 50 J.1IIl were drawn during the characterization experiments. In addition, fibers as small as 140 nm were drawn over distances less than 1.8 mm. It was observed that fiber diameter enlarged as both solution concentration and polymer molecular weight increased. In an attempt to decrease fiber diameter variance, different stylus materials were also examined, and it was found that a parylene-coated stylus resulted in a fair reduction, but not elimination, of the diameter variance. Although fiber diameter variances remain somewhat high, possibly due to unwanted solution IV buildup on the stylus tip, this fabrication technique presents a simple method for producing precisely positioned, low temperature, suspended polymer fiber structures on the micro-and nanoscale.

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Fiber structure and properties of poly(ethylene-2,6-naphthalate) obtained by high-speed melt spinning

Cited by 37 publications

References 31 publications

Conjugate Spun of Polyethylene Terephthalate Resin Modified with 1,4-Cyclohexanedimethanol

Conjugate Spun of Polyethylene Terephthalate Resin Modified with 1,4-Cyclohexanedimethanol

Effects of Spinning Conditions on Properties of Polyester Yarn Prepared using an Ultra-high-speed Melt Spinning Technique Equipped with a Steam Chamber

A characterization of micromanipulator controlled dry spinning of micro- and nanoscale polymer fibers.

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