锯齿引导型无针熔体电纺工艺初探
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- 英文论文题名：Primary Exploration about the Process of Sawtooth-Guidance Type Needleless Melting Electrospinning
- 论文作者：秦永新 ; 安瑛 ; 马小路 ; 何万林 ; 谭晶 ; 李好义
- 英文论文作者：QIN Yongxin ; AN Ying ; Ma Xiaolu ; HE Wanlin ; TAN Jing ; LI Haoyi ; College of Mechanical and Electrical Engineering ; Beijing University of Chemical Technology
- 年：2016
- 作者机构：北京化工大学机电工程学院;
- 论文关键词：聚合物 ; 静电纺丝 ; 正交试验 ; 电场模拟 ; 纤维
- 会议召开时间：2016-11-18
- 会议录名称：中国第四届静电纺丝大会（CICE 2016）摘要集
- 语种：中文
- 分类号：TQ340.64
- 学会代码：ZGNM
- 会议名称：中国第四届静电纺丝大会(CICE 2016)
- 会议地点：中国北京
- 主办单位：中国复合材料学会超细纤维材料分会（筹）
- 学会名称：中关村科创纳米技术创新研究会
- 页数：1
- 文件大小：577k
- 原文格式：D
- 会议级别：全国
摘要
提出一种锯齿引导型无针熔体电纺工艺方法,并在自制的设备上进行正交实验初步探究了其最佳纺丝工艺参数。首先采用电场模拟分析发现锯齿尖端场强比现有的锥形无针纺丝喷头大25%左右,较大的场强作用使得在较低的电压下即可形成射流,均匀分布的锯齿有利于泰勒锥形成和引导泰勒锥均匀分布。实验证明:在聚丙烯(PP)的熔体进给速率为12.5 g/h条件下,此装置的最佳纺丝工艺参数是纺丝温度240℃、纺丝电压65 kV以及纺丝距离105 mm,在此条件下锯齿上的射流根数最多,且泰勒锥均布在锯齿尖端,测得最小的纤维直径平均为800 mm。此工艺及装备有望为熔体法静电纺丝的产业化提供一种新的途径。
It proposed an approach of the sawtooth-guidance type needleless melt electrospinning,and researched the most appropriate spinning process parameters initially by orthogonal experiment on the self-regulating equipment.Firstly,it was found that the sawtooth cutting-edge field strength of spinning jets is larger than existing conical needleless spinning jets about 25%by using the analysis of electric field simulation.The larger action of electric field strength makes it possible to form interjets under the lower electric pressure.The even-distributed sawtooth are benefit to the formation of Taylor-cones and lead the formation of it.The experiment demonstrated that the most appropriate spinning process parameters are as follows when the vicinity of PP was set to 12.5 g/h:the spinning temperature is 240 ℃,spinning pressure is 65 kV and spinning distance is 105 mm,with this condition,the jets on the sawtooth of spinning nozzle are most.Moreover,Taylor-cones are distributed to the sawtooth tips,and the average minimum fiber diameter of 800 nm is measured.The process and equipment are expected to be a new approach that enable the mass production of melting electrospinning.
It proposed an approach of the sawtooth-guidance type needleless melt electrospinning,and researched the most appropriate spinning process parameters initially by orthogonal experiment on the self-regulating equipment.Firstly,it was found that the sawtooth cutting-edge field strength of spinning jets is larger than existing conical needleless spinning jets about 25%by using the analysis of electric field simulation.The larger action of electric field strength makes it possible to form interjets under the lower electric pressure.The even-distributed sawtooth are benefit to the formation of Taylor-cones and lead the formation of it.The experiment demonstrated that the most appropriate spinning process parameters are as follows when the vicinity of PP was set to 12.5 g/h:the spinning temperature is 240 ℃,spinning pressure is 65 kV and spinning distance is 105 mm,with this condition,the jets on the sawtooth of spinning nozzle are most.Moreover,Taylor-cones are distributed to the sawtooth tips,and the average minimum fiber diameter of 800 nm is measured.The process and equipment are expected to be a new approach that enable the mass production of melting electrospinning.
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