Bicomponent Fibers

Hufenus, Rudolf; Yan, Yurong; Dauner, Martin; Yao, Donggang; Kikutani, Takeshi

doi:10.1002/9783527342587.ch11

Cited by 19 publications

(26 citation statements)

References 110 publications

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“…With T m ~250 °C, PA 5.6 shows thermal properties and a heat resistance comparable to the commercially available PA 6 [ 33 ]. The melt-spinning of PA 5.6 in the form of segmented pie bicomponent fibers has been reported in combination with PET [ 34 ].…”

Section: Raw Materials For Melt-spinningmentioning

confidence: 99%

“…Adding metal and metal oxide nanoparticles directly into the polymer matrix is a common approach to render man-made fibers antimicrobial [ 138 ]. Typically, the mechanical properties of man-made fibers change significantly when fillers are used; hence, bicomponent fibers with a functional compound as minor element are an interesting approach [ 34 ]. Examples are conductive fibers as described in paragraph 7.5, or the translucent fiber Bodyshell ® (Toray, Tokyo, Japan) with star-shaped pigmented core, which prevents white swim suits from losing their opaqueness in wet condition [ 139 ].…”

Section: Additives For Melt-spinningmentioning

confidence: 99%

“…The three main cross-section geometries of bicomponent fibers are core-sheath, side-by-side, and multiple cores configurations like segmented pie and islands-in-the-sea ( Figure 10 ) [ 34 ]. As most thermoplastic polymers can be applied to clad a core which provides the requested tensile strength, the core-sheath approach enables a variety of surfaces while maintaining major fiber and textile properties [ 12 ].…”

Section: Bicomponent Melt-spinningmentioning

confidence: 99%

“…When spinning bicomponent fibers, the polymers are extruded individually and kept separate up to the spin pack, where the melt flows meet and exit together through the spinneret to form a filament which consists of non-mixed components that touch at the interface [ 34 ]. When two polymer melts flow together, the interface dynamics considerably affect behavior and performance of the process, and all sorts of interface instabilities can occur [ 192 ].…”

Section: Bicomponent Melt-spinningmentioning

confidence: 99%

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Melt-Spun Fibers for Textile Applications

et al. 2020

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Textiles have a very long history, but they are far from becoming outdated.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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Section: Raw Materials For Melt-spinningmentioning

confidence: 99%

Section: Additives For Melt-spinningmentioning

confidence: 99%

Section: Bicomponent Melt-spinningmentioning

confidence: 99%

Section: Bicomponent Melt-spinningmentioning

confidence: 99%

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Melt-Spun Fibers for Textile Applications

et al. 2020

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“…30 Liquids in the core of a synthetic filament can provide unprecedented properties to textiles, without compromising mechanical properties, dyeability, or washability. 31 PCMs usually have low thermal conductivity in the range between 0.1 and 1 W m −1 K −1 . 32 Low thermal conductivity of PCMs strongly decreases the thermal conversion rates, thus limiting its application scope.…”

Section: Introductionmentioning

confidence: 99%

Flexible phase change filament with ionic liquid core

Lin

Yan

Liu

et al. 2019

J of Applied Polymer Sci

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A flexible phase change filament with core‑sheath structure was successfully prepared by post‐filling of a polypropylene (PP) hollow fiber. The ionic liquid (IL) 1‐butyl‐4‐methylpyridinium hexafluorophosphate was chosen as core component, while copper decorated muscovite (Cu‐MVT) was synthesized via in situ reduction and used as the refining additive for the IL. Results from differential scanning calorimetry demonstrated that the encapsulation ratio of the flexible phase change filament reached 93% with a fusion latent heat of 52.7 J/g at 48.3 °C. Supercooling of the ionic liquid was suppressed effectively as shown by the crystallization in the cooling step due to the addition of Cu‐MVT. The flexible phase change material with core‑sheath structure also showed good thermal stability, durability, and mechanical property under the protection of the sheath polymer material. It is evident that the phase change filament possesses promising characteristics for thermal energy storage and thermoregulation. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47830.

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