Studies in the Effect of Heat Treatments on the Properties of Ailan.(III)：On the Treating Temperature Dependence of Optical Anisotropic Character.

摘要

For the purpose of investigating, by an optical means with other than X-rays, into the changes of cristallinity of Amilan under the treatments of heating and cooling, the authors subjected drawn samples to dry heating as well as cooling, the authors subjected drawn samples of Amilan to dry heating as well as cooling treatments under tension and no tension in a similar way as wasdescribed in the previous paper.Important results in this experiments will be summarized as fllows：(1)The relationship among index of double refraction, degree of luster and tensile strength that depend upon the treating temperatures were found to be linear.(2)The principal indexes of…