狭缝式熔体微分电纺工艺参数对射流间距的影响

Effects of Process Parameters of Slit-surface Melt Differential Electrospinning on Interjet Distance

采用自主设计的狭缝式熔体微分静电纺丝装置对聚丙烯(PP)材料进行熔体静电纺丝,研究了纺丝电压、纺丝距离和纺丝温度3个纺丝参数对射流间距的影响。结果表明,射流间距随纺丝电压的升高而减小;射流间距随纺丝距离的减小而增大,但当纺丝距离低于80mm并继续减小时,射流间距保持不变;射流间距随纺丝温度的升高而减小,当纺丝温度达到230℃并继续升高时,射流间距保持不变;当纺丝电压为60kV,纺丝距离为100mm,纺丝温度为245℃时,射流间距最小,可达3.3mm。

Polypropylene（PP）fibers were electrospun by a self-made slit-surface melt differential electrospinning device,and effects of process parameters such as spinning voltage,spinning distance and spinning temperature on the interjet distance were investigated.The results indicated that the interjet distance decreased with an increase in spinning voltage but increased with a decrease in spinning distance.After the spinning distance was lower than 8 cm,the interjet distance was kept stable with a variation of spinning distance.The interjet distance also decreased with an increase in spinning temperature.However,the interjet distance was kept stable after the spinning temperature was higher than 230℃.The interjet distance achieved the minimum value of3.3 mm at a spinning voltage of 60 kV,a spinning distance of 100 mm and a spinning temperature of 245 ℃.