On the neck-like deformation in high-speed spun polyamides
On the neck-like deformation in high-speed spun polyamides
复制标题
高速纺聚酰胺的颈状变形
DOI：
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发表时间：
1993
期刊：
影响因子：
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通讯作者：
P. Matthies
中科院分区：
文献类型：
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作者：
H. Haberkorn;K. Hahn;H. Breuer;H. Dorrer;P. Matthies
采用在线激光光散射、热像对比度补偿和WAXS测量等方法，研究了锦纶66和锦纶6高速熔体纺丝过程中的颈缩变形过程，纺丝速度为4200 ~ 5500 m/min。通过同时测量颈部附近的直径和温度分布，获得了关于沿着自旋线结晶开始的新信息。结晶速率，作为一个功能的卷取速度，估计两种聚酰胺。提出了高速熔纺聚酰胺颈缩变形的物理机制
The neck-like deformation process occurring in high-speed melt spinning of polyamide 66 and polyamide 6 filaments was investigated at take-up speeds of 4200 to 5500 m/min by on-line laser light scattering, thermographic contrast compensation, and WAXS measurements. New information about the onset of crystallization along the spinline was obtained by measuring simultaneously diameter and temperature profiles in the neighborhood of the neck. Crystallization rates, as a function of take-up speed, are estimated for both polyamides. A picture of the physical mechanism responsible for the neck-like deformation of high-speed melt spun polyamides is proposed