CAJ | 학술논문

利用自主研发的气动喂料熔体静电纺丝设备，制备了直径为2.25～6.31μm的PA6超细纤维，借助扫描电子显微镜对不同工艺条件下制备的PA6超细纤维进行表征，并对纤维直径作出统计分析，探讨了主要工艺参数对纤维直径及变异系数的影响。结果表明，增大纺丝电压、减小纺丝距离有利于减小纤维直径；随着纺丝温度的升高，纤维直径呈现先减小后增大的趋势，直径变异系数逐渐增大；减小喂料气压能够显著减小纤维直径。
이용자주연발적기동위료용체정전방사설비，제비료직경위2.25～6.31μm적PA6초세섬유，차조소묘전자현미경대불동공예조건하제비적PA6초세섬유진행표정，병대섬유직경작출통계분석，탐토료주요공예삼수대섬유직경급변이계수적영향。결과표명，증대방사전압、감소방사거리유리우감소섬유직경；수착방사온도적승고，섬유직경정현선감소후증대적추세，직경변이계수축점증대；감소위료기압능구현저감소섬유직경。
PA6 ultra-fine fibers were prepared by self-made pneumatic feeding melt electrospinning device,whose average diameter ranged from 2.25μm to 6.31μm. The as-spun PA6 ultra-fine fibers made under different parameters were characterized by SEM,and the average diameter of as-spun PA6 ultra-fine fibers was calculated via SEM. The influences of main parameters on fibers’diameter and variation coefficient were studied. Experimental results show that shortening spinning distance and improving spinning voltage can reduce the diameter of fibers within a certain range. With the increase of spinning temperature,the diameter of as-spun PA6 fibers decease firstly and then increase within a certain range,while variation coefficient of diameter increase all through the way. Decreasing air pressure can reduce the average diameter of as-spun fibers.