摘要
利用自制熔体微分静电纺丝设备,以聚乳酸(PLA)为原料,探究了熔体微分静电纺丝辅助气流温度及纺丝距离对纤维直径、均匀性、孔径分布的影响。纤维直径随着气流温度的上升而变细,纤维直径均匀性也随着气流温度的上升变得更加均匀,而纤维直径随着纺丝距离的变化呈现波谷趋势,并且根据纤维膜孔径分布表明,纤维越细、越均匀,纤维膜孔径分布越小,并获得了最佳的气流温度及纺丝距离参数。研究表明,在纺丝温度260℃、气流流量在20 m3/h、气流温度为100℃和纺丝距离为5.5 cm时,纤维平均直径达到最小值,约为400 nm。
Using self-made melt differential electrospinning equipment,using polylactic acid(PLA)as raw material,the influence of melt differential electrospinning auxiliary airflow temperature and spinning distance on fiber diameter,uniformity and pore size distribution was investigated.As the temperature of the airflow rises and the fibers become thinner,the uniformity of the fiber diameter becomes more uniform;the fiber diameter exhibits a trough tendency with the change of the spinning distance;according to the pore size distribution of the fiber membrane,the finer and more uniform the fibers are,the smaller the pore size distribution of the fiber membrane is.The optimal airflow temperature and spinning distance parameters were obtained.The research shows that the spinning temperature is 260℃,the air flow rate is 20 m3/h,the air flow temperature is 100℃and the spinning distance at 5.5 cm,the average fiber diameter reaches the minimum of about 400 nm.
作者
王晓辉
丁玉梅
王军
陈明军
杨卫民
李好义
Xiaohui Wang;Yumei Ding;Jun Wang;Mingjun Chen;Weimin Yang;Haoyi Li(College of Mechanical and Electrical Engineering,Beijing University of Chemical Technology,Beijing 100029,China)
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2020年第6期79-83,90,共6页
Polymer Materials Science & Engineering
基金
国家重点研发计划(2016YFB0302000)
国家自然科学基金资助项目(51603009)。
关键词
热气流
聚乳酸
熔体微分
静电纺丝
hot gas flow
polylactic acid
melt differential
electrospinning
