【作者】 王艳洁； 闫卫东；

【Author】 Yanjie Wang, Weidong Yan Institute of Polymer Science and Engineering, Hebei University of Technology, The Hebei Province Key Laboratory of green chemistry and high efficiency and saving energy, Tianjin 300130

【机构】 河北工业大学化工学院高分子科学与工程研究所绿色化工与高效节能河北省重点实验室；

【摘要】 <正>乙烯原位聚合生成LLDPE其主要优点在于采用单一的乙烯作为单体。新型复合催化剂制得的聚乙烯链结构具有新的特点,对其进行结构分析以及关联其性能对于进一步研究催化剂体系以实现结构可控有十分重要的作用。 DSC测试在Perkin-ElmerDSC-7型差示扫描量热仪上进行。按照SSA方法,采用第二次扫描的结果;XRD测试利用荷兰philips公司XRD衍射仪,Cu,K α辐射,管电压40kV,管电流更多还原

【Abstract】 Thermal segregations of LLDPE were treated with Successive Self-Nucleation Annealing (SSA) on DSC. Information of molecular heterogeneity of LLDPE was obtained. After SSA treated, the multiple endothermic peaks were observed in the DSC thermograms during heating experiments. The crystal characteristics were detected by XRD and the unit dimensions were calculated.更多还原