郑州大学学报（理学版）2012，Vol.44Issue(2)：67-71,5.DOI:10.3969/j.issn/1671-6841.2012.02.015
电纺等规聚丙烯纤维诱导同质基体结晶
Electrospun Isotactic Polypropylene Fiber Induced Transcrystallization of iPP Matrix
摘要
Abstract
The fine iPP fibers were fabricated via electrospining, and then iPP fiber/ iPP composites were prepared through introducing the as-electrospun iPP fibers into supercooled iPP melts. The nucleating a-bility of the electrospun iPP fibers to the iPP matrix was investigated. When the fibers were introduced at 160 ℃, the transcrystallization layer was mainly composed of a -modification. However, the a-transcrystallization had nothing to do with the shear involved during the fiber introduction, proved by the fact that the relaxed composites at 160℃ at different times had no influence on the crystallization form. The results showed that iPP fiber exhibited higher nucleation capacity towards the iPP matrix, which should be associated with the perfect lattice matching and the good wettability. When melting and recrystallizing the iPP fiber/iPP composites, the a-modification iPP partly appeared in original place once more, showing a "memory effect".关键词
等规聚丙烯(iPP)/静电纺丝/横晶Key words
isotactic polypropylene (iPP) / electrospinning/ transcrystallization分类
化学化工引用本文复制引用
刘双阳,梁艳艳,谢满存,刘成刚,常宝宝,郑国强,刘春太,申长雨..电纺等规聚丙烯纤维诱导同质基体结晶[J].郑州大学学报（理学版）,2012,44(2):67-71,5.基金项目
国家自然科学基金资助项目,编号10872186,50803060. （）
