摘要
用添加成核剂的方法制备了主含β晶的等规聚丙烯试样,并用DSC研完了它们的热熔行为,发现了β晶的熔化双峰现象,对边熔解边重结晶的过程进行了研究,并用偏光显微镜对热熔过程进行跟踪照相,证实了这一过程。
In addition of a certain necleating agent,samples with major P-form crystals of isotac-tic polypropylene (IPP) were prepared,and the melting behavior of them had been studied. The major feature of DSC melting curves of β-IPP probably show 4 endothermal peaks. Among them the two lower-temperature peaks belong to p-form crystals. The nature of the observed peaks, and the course of recrystallization were examined.The polarizing micrographs during melting process confirmed the course.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
1989年第4期47-53,共7页
Polymer Materials Science & Engineering
