Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : November 02, 2019 - November 04, 2019
Crystalline polymers may have some size effects that show different deformation responses depending on size of crystalline phase with respect to that of specimen. In the previous report, the cooling method for solidification of polypropylene from a molten state has some problems. In the present report, the authors attempt to control the crystalline phase size precisely by improving the cooling method. Furthermore, conducting some tensile tests on a polypropylene specimen, the effect of difference in crystal size on deformation response is investigated. In addition, it is indicated that a shape of crystalline phase should be changed in the unit cell of homogenization method.
