摘要
利用自行研制的先剪切后拉伸的挤管口模,对3种不同配比的HDPE6100M/HMWHDPE共混物挤出管材的周向、轴向强度进行研究,实验中发现少量的HMWHDPE有利于HDPE管材在复合引力场挤出中实现力学性能的双向自增强,预示了少量的HMWHDPE有利于诱导HDPE6100M分子沿应力场方向取向、结晶。
The polymer melt was sheared first and then drawn by a self-made extrusion die.Three HDPE6100M/HMWHDPE copolymers were extruded through the die,and circumferential and axial strengths of pipes were studied respectively.It was shown that the few HWMHDPE added HDPE was favorable to obtain self-reinforced pipes prepared under this complex stress field,which indicated the addition of few HMWHDPE to HDPE contributed HDPE6100M molecular orientation and (crystallization) along the stress direction.
出处
《塑料》
CAS
CSCD
北大核心
2005年第3期68-71,14,共5页
Plastics
基金
国家自然科学基金(20174026)
关键词
复合应力场
双向自增强
管材
complex stress field
self-reinforcement in two directions
pipes
