Prediction and modeling of the influence of thermal and optical treatment steps on the structural properties of optical polymer fibers

从目前的技术状况和我们自己的初步工作来看，很明显存在大量用于生产阶梯指数和梯度指数轮廓纤维的专利方法。然而，事实上，这些生产过程要么是不连续的（从预定的圆柱体中拉出过程）是相当长的时间（凝胶聚合和在挤出POFs中的在线聚合），因为聚合仍然要进行，生产速度有限（干纺丝过程）。为了解决这个问题，项目合作伙伴开发了一种连续的、可扩展的熔融纺丝工艺，用于生产梯度指数型纤维。虽然先前的准备工作已经证明了该技术的基本适用性，但为了能够以有针对性和可控的方式使用这种新工艺，一方面必须进行相当大的改进，另一方面也必须对折射率剖面的控制进行相当大的改进。为此，有必要更好地了解光学聚合物在成丝过程中的结构形成过程。

From the state of the art and our own preliminary work it is clear that a large number of patented methods exist for the production of step index and gradient index profile fibers. However, the fact that these production processes are either discontinuous (pulling processes from predefined cylinders) is a considerable time (gel polymerization and in-line polymerization in the extrusion of POFs) due to polymerization still to be carried out Production speed is limited (dry spinning process). To solve this problem the project partners developed a continuous and scalable melt spinning process for the production of gradient index profile fibers. Although the basic suitability of the technology has been demonstrated by the previous preparatory work, considerable improvements have to be made on the one hand and on the other hand on the control of the refractive index profiles in order to be able to use this new process in a targeted and controlled manner to become. For this purpose, a better understanding of the structure formation process of the optical polymer during filament formation is necessary.