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Melt-spinning process of a tetrafluoroethylene-hexafluoropropylene copolymer

机译:四氟乙烯-六氟丙烯共聚物的熔融纺丝工艺

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An industrial melt-spinning process of tetrafluoroethvlene-hexafluoropropylene copolymer (FEP) using an extruder was studied. The novel "spinneret," having both a large-diameter spinning nozzle and a high-temperature vessel, was used to solve the problem of filament breakage an the spinning line caused by high melting viscosity of FEP. The extruder, with its long feed zone, was newly designed to function with a geared pump. The strength of fibers increased with drawing of as-spun fiber. FEP fibers up to six denier were continuously produced through long-run production. According to this new process, FEP fibers can be supplied for textile or industrial application. (C) 2002 Wiley Periodicals. Inc. [References: 9]
机译:研究了使用挤出机的四氟乙烯-六氟丙烯共聚物(FEP)的工业熔纺工艺。具有大直径纺丝喷嘴和高温容器的新型“喷丝头”用于解决由FEP的高熔融粘度引起的长丝断裂和纺丝生产线的问题。新设计的挤出机具有较长的进料区,可与齿轮泵配合使用。纤维的强度随着初纺纤维的拉伸而增加。通过长期生产,可以连续生产高达6旦的FEP纤维。根据这一新工艺,FEP纤维可用于纺织或工业应用。 (C)2002 Wiley期刊。 Inc. [参考:9]

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