Lattice orientation within stirring-induced crystals of polyethylene |
| |
| Authors: | A keller F M willmouth |
| |
| Institution: | 1. H. H. Wills Physics Laboratory , University of Bristol Royal Fort Bristol , England;2. H. H. Wills Physics Laboratory , University of Bristol Royal Fort Bristol , England;3. Plastics Division, I.C.I. Ltd. , Bessemer Road, Welwyn Garden City, Herts, England |
| |
| Abstract: | Micro-shish-kebab stirring-induced polyethylene crystals, as defined and described in the preceding paper, are flat, ribbon-shaped fibers. Selected area electron-diffraction techniques were used to determine the orientation of the crystal axes with respect to the external fiber shape. It has been shown that in addition to the crystal-lographic c-axis laying along the fiber direction, the normal to the ribbon plane is parallel to the crystallographic a-axis. |
| |
| Keywords: | Polypropylene Chain microstructure Flow pattern Microcrystallinity |
|
|
