Fiber Structure Development of Polyester Fiber Analyzed by the Laser-heated Drawing

通过用激光照射快速均匀地加热行进的合成纤维进行拉伸，颈拉伸点可以无接触地固定在约0.1mm的范围内。在这项研究中，我们已经成功地分析了纤维材料的变形行为，拉伸过程中的能量平衡，并在拉伸过程中的纤维结构的发展机制，通过测量纤维直径分布，纤维温度分布，和X射线衍射图案的拉伸过程。时间分辨率为约0.01毫秒获得的直径分布，和0.6毫秒的温度分布和X-射线衍射图案。不仅聚（对苯二甲酸乙二醇酯），而且聚乙烯，聚丙烯，PFA，和PA-9 T的测量。通过所获得的直径轮廓，

By drawing with heating the running synthetic fiber rapidly and uniformly with laser irradiation, the neck-drawing point can be fixed about the range of 0.1 mm without contact. In this study, we have succeeded to analyze the deformation behavior of fiber materials, energy balance on the drawing process, and fiber structure development mechanism in the drawing process by measuring fiber diameter profiles, fiber temperature profiles, and the x-ray diffraction patterns for the drawing process. The time-resolution was about 0.01 milliseconds for obtained diameter profiles, and was 0.6 milliseconds for temperature profiles and x-ray diffraction patterns. Not only poly(ethylene terephthalate) but also poly ethylene, poly propylene, PFA, and PA-9T were applied for the measurements. By the obtained diameter profiles,