Dynamics and evolution of structure in fiber extrusion
Dynamics and evolution of structure in fiber extrusion
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纤维挤出结构的动力学和演化
DOI：
10.1002/app.2257
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发表时间：
2002
影响因子：
3
通讯作者：
T. Kikutani
中科院分区：
文献类型：
--
作者：
J. Shimizu;T. Kikutani
本文综述了在理解高速熔融纺丝过程中纤维结构发展机制方面的科学进展。自 20 世纪 70 年代末以来，该领域的研究一直很活跃。特别关注聚对苯二甲酸乙二醇酯、聚酰胺和一些其他类型聚合物的高速纺丝过程中发生的分子取向和取向诱导结晶。还讨论了纺丝线中形成的晶体形态的特征以及纤维横截面结构变化的演变。纺丝线的在线测量表明，纤维结构的发展伴随着颈状变形。给出了颈状变形的详细行为，如直径轮廓、颈缩温度和颈缩拉伸比，并讨论了颈状变形与结构发展之间的关系。
This paper gives a review of scientific advances in the understanding of the mechanism of fiber structure development in the high-speed melt spinning process. Research in this field has been active since the late 1970s. Particular attention is paid to the molecular orientation and orientation-induced crystallization occurring in the high-speed spinning process of poly(ethylene terephthalate), polyamides, and some other types of polymers. Characteristics of crystalline morphology developed in the spin line and evolution of structural variation in the cross-section of the fiber are also discussed. On-line measurement of the spin line revealed that fiber structure development is accompanied with neck-like deformation. Detailed behavior of the neck-like deformation such as diameter profile, necking temperature, and necking draw ratio are presented, and the relation between the neck-like deformation and the structure development is also discussed.