Thinning Behavior of the Spinline in High-Speed Bicomponent Spinning of High Molecular Wight and Low Molecular Wight Poly (ethylene terephthalate)
Thinning Behavior of the Spinline in High-Speed Bicomponent Spinning of High Molecular Wight and Low Molecular Wight Poly (ethylene terephthalate)
复制标题
高分子量和低分子量聚对苯二甲酸乙二醇酯高速双组分纺丝中纺丝细化行为
DOI：
10.2115/fiber.52.11_618
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发表时间：
1996
期刊：
影响因子：
--
通讯作者：
N. Okui
中科院分区：
文献类型：
--
作者：
J. Radhakrishnan;T. Kikutani;N. Okui
对高分子量聚对苯二甲酸乙酯（HMPET）和低分子量聚对苯二甲酸乙酯（LMPET）双组分纤维的高速纺丝进行了研究，并对纺丝线的减薄行为进行了研究。在低速下，双组分纺丝的纺丝线直径在线测量结果表明，双组分纺丝的纺丝线直径分布介于HMPET和LMPET单组分纺丝之间。在更高的速度下，双组分旋转中也发现了类似颈部的变形。与单组分纺丝相比，颈状变形的位置更接近喷丝板。尽管双组分纺丝过程中出现颈状变形，但双组分纤维中的LMPET组分表现出低取向和低结晶结构。
The high-speed spinning of sheath/core type bicomponent fibers consisting of high molecular weight poly(ethylene terephthalate) (HMPET) and low molecular weight poly(ethylene terephthalate) (LMPET) was performed and the thinning behavior of the spinline was investigated. At lower speeds, the on-line measurement of the spinline diameter revealed that the diameter profile of the bicomponent spinning lies in between those of the HMPET and LMPET single component spinnings. At higher speeds, a neck-like doformation was also found to occur in the bicomponent spinnings. The position of the neck-like deformation was closer to the spinneret in comparison with both the single component spinnings. Although the necklike deformation occurred in the bicomponent spinning, the LMPET component in the bicomponent fiber showed low oriented and low crystalline structure.