摘要
利用DSC和W AXD研究了医用聚丙烯专用料(TPC)及其密封式直立吹塑瓶(TPCC)的熔融行为和结晶结构。结果表明经过吹塑成型过程后,TPCC的熔融温度、结晶度均较TPC有所提高,DSC熔融半峰宽明显下降,微晶尺寸明显增大,同时晶面取向因子发生显著变化,表明成型过程中晶区尺寸增大,且晶体结构更均匀规整,赋予了输液瓶良好的性能。
The melting behavior and crystalline structure of vertical-faced medical polypropylene bottle was studied based on DSC and WAXD test. The results showed that melting temperature, crystallinity increased and the half width of the melting peak decreased after medical polypropylene was blown into bottle, which indicated that the regularity of the crystalline and crystallinity increased. The increase of crystallite size and notable changes of orientation factor for crystal planes during blow molding process revealed that the crystalline region and alignment degree of material increased , which given the bottle good mechanical properties.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2007年第2期203-205,210,共4页
Polymer Materials Science & Engineering
基金
国家自然科学基金项目(20574048
50503014)资助
关键词
吹塑
结晶
微晶尺寸
取向
blow molding
crystallization
crystallite size
orientation
