摘要
作者研究了β晶相聚丙烯的成纤性能。研究表明,在一定的温度范围内,熔体温度对聚丙烯初生纤维的β晶含量影响甚微,而纺丝的冷却速率和冷却介质对其有较显著的影响。含β晶相聚丙烯初生纤维经拉伸后,在纤维的表面呈现许多微孔及裂缝。与普通聚丙烯纤维比较,制得的纤维有较小的表观密度,其吸湿性有明显的提高。
The formation of β crystalline form isotactic polypropylene fiber was studied. The results showed that the roelt temperature had little effect on the relative content of β -form presented in as-spun fibers within a certain temperature range while the cooling rate and cooling medium had a significant effect on it. After the stretching of β-form PP fiber, there left a lot of microvoids and crevices on the fiber surface. Compared with IPP fiber, the drawn fiber had less apparent density and its moisture absorption was obviously increased.
出处
《中国纺织大学学报》
CSCD
1990年第2期31-37,共7页
Journal of China Textile University
基金
国家自然科学基金
关键词
聚丙烯纤维
晶相
纤维成形
可纺性
polypropylene fiber, spinning-ability, moisture absorption, crystalline form, crystalline phase, apparent density, pore volume, fiber formation.
