writer：Xianhu Liu, Yamin Pan, Cheng Peng, Xiaoqiong Hao, Guoqiang Zheng(通讯作者), Dirk W. Schubert, Chuntai Li
keywords：Banded spherulites, Microstructure, Twisted lamellae, X-ray techniques
source：期刊
specific source：Materials Letters, 2016, 172, 19-22
Issue time：2016年

A distinct skin-core-water-channel structure was formed in water-assisted injection molded low molecular weight high density polyethylene. A large number of well-developed banded spherulites were observed in core region. Two types of shish-kebabs, i.e., shish-kebabs without and with twisted lamellae, were appeared in both skin and water-channel region. The results imply that the formation mechanisms of twisted lamellae in banded spherulites and shish-kebabs are different, but both depend on the level of applied shear stress.