Flow Birefringence and Stress
Flow Birefringence and Stress
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流动双折射和应力
DOI：
10.1063/1.1722554
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发表时间：
1956
期刊：
影响因子：
--
通讯作者：
W. Philippoff
中科院分区：
文献类型：
--
作者：
W. Philippoff
同时测量了 15% 的聚异丁烯十氢萘溶液的流动双折射、剪切和法向应力。他们证明，在双折射中测量的消光角与根据法向应力测量计算出的主拉伸应力的方向相同，并且双折射与流动中主应力的差异成正比。对该结果的意义进行了详细讨论，并有可能对高聚物溶液的机械行为进行深远的概括。
Simultaneous measurements of flow birefringence, shear and normal stresses on a 15% solution of polyisobutylene in decalin were performed. They proved that the extinction angle measured in birefringence is identical to the orientation of the principal tensile stress calculated from the normal stress measurements and that the birefringence was proportional to the difference in principal stresses in flow. A detailed discussion of the significance of this result is given with a possibility of a far‐reaching generalization of the mechanical behavior of high polymer solutions.