Textile Fiber Materials

Freudenberg, Christiane

doi:10.1007/978-3-662-46341-3_3

Textile Materials for Lightweight Constructions 2016

DOI: 10.1007/978-3-662-46341-3_3

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Textile Fiber Materials

Christiane Freudenberg

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Cited by 2 publications

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Melt spinnability of long chain cellulose esters

Willberg‐Keyriläinen

Rokkonen

Malm

et al. 2020

J of Applied Polymer Sci

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Technical and hygienic nonwovens, originating typically from fossil‐based synthetic polymers, are the fastest growing applications in the textile industry. Recently developed thermoplastic cellulose fatty acid esters have polyolefin like rheology properties and therefore the suitability of these cellulose esters for fiber production was evaluated. In this study, the melt spinning of textile fibers has been demonstrated using thermoplastic cellulose octanoate. The mechanical properties of melt spun fibers were analyzed by using tensile testing and both the surface and cross‐section morphology of melt spun fibers were studied using the scanning electron microscopy. The surfaces of the fibers were very smooth and also the cross‐section was very uniform and no porosity was observed. While mechanical properties of the produced fibers are not yet as good as those reported for commercial polypropylene (PP) monofilament fibers, they are somewhat more comparable to other cellulose ester‐based fibers. The melt spinning results indicate that the novel cellulose‐based fibers can provide a renewable and recyclable alternative, for example, spun‐laid PP in several hygienic textile and fully oriented in technical applications in future.

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Melt spinnability of long chain cellulose esters

Willberg‐Keyriläinen

Rokkonen

Malm

et al. 2020

J of Applied Polymer Sci

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Screening of spinning oils for melt‐spun lignin‐based carbon fiber precursors

Enengl

Lone

Unterweger

et al. 2022

J of Applied Polymer Sci

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For the improvement of the processing of melt-spun lignin-based fibers, the use of a spinning oil is necessary. The use of spinning oils is standard for the processing of PAN based carbon fiber precursors. Since no commercial spinning preparations for lignin fibers are available on the market, a study on different oils, such as technical oils, food-grade oils or spinning avivages, is performed. A stepwise approach with applied tests (viscosity measurement, fiber etching, melt-spinning, stabilization, carbonization) was developed to eliminate oils which are not suitable. The physical properties of the tested oils are determined and spectroscopic studies of these avivages are performed. Mechanical properties are characterized for as-spun lignin fibers, stabilized lignin-based fibers and lignin-based carbon fibers with and without a spinning preparation. Four of seven tested spinning oils improve the handling during the processing of ligninbased fibers but only two spinning oils lead to good quality carbon fibers and improve even the tensile strength of the resulting carbon fibers.

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Textile Fiber Materials

Cited by 2 publications

References 21 publications

Melt spinnability of long chain cellulose esters

Melt spinnability of long chain cellulose esters

Screening of spinning oils for melt‐spun lignin‐based carbon fiber precursors

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