Study on highly oriented PE material

This paper studied the tensile behavior of the highly oriented ethylene copolymer prepared at different draw ratios and measured orientation degree and crystallinity of the oriented material with X-ray diffractometer or wide angle X-ray diffractometer. The crystallinity of the oriented polyethylene (PE) increased obviously with the draw ratio and die temperature. This fact confirms that there appears not only a crystallization process induced by stress, but also a secondary re-crystallization induced by temperature during the preparation of the highly oriented PE material.