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首页> 外文期刊>Journal of Applied Polymer Science >Opto-Thermal Properties of Fibers XVIII-Skin-Core Structures Variations in Nylon 6 Fibers Due to Different Annealing Conditions
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Opto-Thermal Properties of Fibers XVIII-Skin-Core Structures Variations in Nylon 6 Fibers Due to Different Annealing Conditions

机译：由于不同的退火条件，尼龙6纤维中的纤维XVIII-皮芯结构的光热性能

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摘要

Nylon 6 fibers (Amilan) were annealed at constant temperature 140+-1deg C for different time durations (1-10h). Refractive indices have been previously measured interferometerically. Two independent techniques were used to study the optical anisotropy and density in these fibers. The first was the application of a multiple-beam to determine the skin and core"mean" refractive indices and birefringence of the samples. The technique used multiple-beam Fizeau fringes in transmission. The second technique was an acoustic method for measuring the investigated fibers. The optical results were used to calculate the optical orientation factors for skin and core. The values of (triangle open#alpha#3#alpha#_0), which depend upon the molecular structure of the polymer, remain constant and in agreement with the previous published data. The density results were used to calculate the degree of crystallinity of nylon 6 fibers. In addition, the results were used to calculate the mean square density fluctuation, the harmonic mean polarizability of the dielectric, specific refractivity of the isotropic dielectric and the virtual refractive index. Also, the number of monomer units per unit volume, and n_1 and n_2, which are the refractive indices of fully oriented fiber, were calculated and found to be 91.606 and 1.534). Hermans optical orientation functions have been compared with the generalized Lorentz-Lorenz equation given by de Vries. Microinterfero-grams and curves are given for illustration.
机译：尼龙6纤维（Amilan）在140 + -1摄氏度的恒定温度下退火不同的持续时间（1-10h）。折射率先前已经通过干涉仪测量。使用两种独立的技术来研究这些光纤的光学各向异性和密度。首先是应用多光束来确定样品的表皮和芯的“平均”折射率和双折射。该技术在传输中使用了多光束菲索条纹。第二种技术是用于测量所研究纤维的声学方法。光学结果用于计算皮肤和核心的光学取向因子。取决于聚合物的分子结构的（三角形开放＃alpha＃3＃alpha＃_0）的值保持恒定，并与先前公开的数据一致。密度结果用于计算尼龙6纤维的结晶度。另外，将结果用于计算均方密度波动，电介质的谐波平均极化率，各向同性电介质的比折射率和虚拟折射率。而且，计算出每单位体积的单体单元的数目，以及作为全取向纤维的折射率的n_1和n_2，发现为91.606和1.534。已将赫曼光学取向函数与de Vries给出的广义Lorentz-Lorenz方程进行了比较。给出了微干涉图和曲线用于说明。

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