高速纺细旦聚乳酸拉伸丝的研制Study on Fine Denier Polylactide Draw Twist Filament by High-Speed Spinning
兰平,汪蔚,吕佳
LAN Ping,WANG Wei,L Jia(College of Material and Textile
摘要(Abstract)：
选用国产聚乳酸切片为原料,利用自行设计的中试设备,通过预取向-拉伸两步法制得聚乳酸细旦拉伸丝,研究了切片干燥条件、纺丝温度、纺丝速度、拉伸温度、拉伸倍数对聚乳酸细旦拉伸丝的影响。研究表明:采用转鼓干燥及短甬道熔纺工艺,纺丝速度3200 m/min,经3.0倍拉伸后,制得单丝纤度小于1.1 dtex的聚乳酸细旦拉伸丝,纤维性能良好。
Polylactide chip and self-made pilot equipment were applied to make fine denier draw twist polylactide filament by two-step method of high speed spinning and draw-twisting.The influence of technology parameters such as drying process of chip,spinning temperature,spinning speed,stretching temperature and draw ratio on performance of fine denier drawn fiber was studied.It can be concluded that drum drying and short spinning process were acceptable.When spinning speed was 3 200 m /min and stretching by 3.0 times,less than 1.1 denier per filament can be obtained.Fiber performance was good.
关键词(KeyWords)：
细旦;聚乳酸纤维;拉伸丝;高速纺
fine denier,polylactide fiber,draw twist filament,high-speed spinning
基金项目(Foundation): 浙江省科技厅项目(2009C21003);; 浙江省自然科学基金项目(Y4110606)
作者(Author):
兰平,汪蔚,吕佳
LAN Ping,WANG Wei,L Jia(College of Material and Textile
DOI: 10.16090/j.cnki.hcxw.2011.05.005