【作者】 王琪； 郭岳； 白时兵； 聂敏；

【Author】 Qi Wang,Yue Guo,ShiBing Bai,Min Nie (State Key Laboratory of Polymer Materials Engineering(Sichuan University),Polymer Research Institute of Sichuan University,Chengdu 610065)

【机构】 高分子材料工程国家重点实验室(四川大学)四川大学高分子研究所；

【摘要】 <正>聚乙烯(PE)管综合性能优良,广泛应用于燃气输送、供水、农业灌溉等领域。随着PE管的迅速推广使用,市场需求日益增加,对其性能也提出更高要求。但常规挤出PE管存在环向强度差、耐开裂性能不足等缺陷,急需开发高性能PE管。国内外己进行了大量研究,如通过改进聚合方法,合成高性能PE管专用树脂PE100、PE112、PE125等,或建立PE管加更多还原

【Abstract】 Polyethylene(PE) pipes have been widely used as gas or water transport pipes owing to their comprehensive advantages.However,the conventional extruded PE pipes have poor hoop strength and weak crack resistance.In order to overcome the shortcomings of the conventional extrusion and to prepare the PE pipe with higher performance,our research group designed and manufactured a novel rotation extrusion processing system,so that both crystallization and orientation of PE could be even controlled by adjusting the applied stress and cooling rate to produce PE pipes of higher performance.更多还原