动态应力场中成型的自增强聚丙烯的结构与性能  

STRUCTURE AND PROPERTIES OF SELF-REINFORCED POLYPROPYLENE IN OSCILLATING STRESS FIELD

作　　者：官青[1] 申开智[1] 朱居木[1] 张弓 吉继亮[1] 

机构地区：[1]四川联合大学工程塑料国家重点实验室

出　　处：《高分子学报》1996年第3期378-381,共4页Acta Polymerica Sinica

基　　金：工程塑料国家重点实验室开放基金;四川联合大学青年科学研究基金;国家自然科学基金

摘　　要：动态应力场中成型的自增强聚丙烯的结构与性能官青，申开智，朱居木，张弓，吉继亮（四川联合大学工程塑料国家重点实验室成都６１００６５）关键词动态应力场，自增强，聚丙烯自从１９６２年Ｗｔｍｄｅｒｌｉｃｈ及其同事在高压下发现聚乙烯形成伸直链晶体以来［１］，利...his article investigates the self-reinforcement of general grade polypropylene(PP) in oscillating stress field. The Young's modulus and yield strength of self-reinforced polypropylene have been enhanced sighficantly from original 1.4GPa,31MPa to 3.0GPa, 58MPa in oscillating stress field under low pressure. Its morphology has been investigated by differential scanning calorimetry (DSC) and X-ray diffraction. It has been found that the improvement in mechanical properties of PP should be ascertained to the production of shishkebab crystals and the orientaion of molecular chains along the now direction. High working pressure is unnecessary for the self-reinforcement of PP in oscillating stress field.

关 键 词：动态应力场 自增强 聚丙烯 

分 类 号：O632.12[理学—高分子化学] O631.1[理学—化学]