Analysis of co-extrusion process for preparation of gradient index plastic optical fiber
Analysis of co-extrusion process for preparation of gradient index plastic optical fiber
复制标题
共挤梯度折射率塑料光纤制备工艺分析
DOI：
10.1016/s0032-3861(03)00575-5
复制
发表时间：
2003
期刊：
影响因子：
--
通讯作者：
Sung
中科院分区：
文献类型：
--
作者：
J. Hsu;Sung
对闭式共挤过程中梯度折射率塑料光纤的制造进行了理论模拟。基于修正的自由体积理论以及三组分聚合物溶液的广义弗洛里-哈金斯理论，考虑了主体聚合物中单体扩散率的浓度依赖性。通过将其与文献报道的实验数据进行拟合，证明了所得出的模型的适用性，并且其性能令人满意。我们表明，流动相在聚合物溶液中的扩散取决于聚合物的结构和浓度，以及存在的其他流动相的浓度。
The fabrication of gradient index plastic optical fiber in a closed co-extrusion process is simulated theoretically. The concentration dependency of the diffusivities of monomers in host polymer is taken into account on the basis of a modified free volume theory together with a generalized Flory–Huggins theory for a three-component polymer solution. The applicability of the model derived is justified by fitting it to the experimental data reported in the literature, and its performance is found to be satisfactory. We show that the diffusion of a mobile phase in a polymer solution is dependent upon the structure and the concentration of polymer, and the concentration of the other mobile phase present.