摘要
纳米纤维具有高强度、高比表面积、超细尺寸、高柔性和生物相容性等优势,广泛应用于各个领域。文章以静电纺丝技术为基础,制备了对挥发性有机化合物(VOCs)有吸附功能的聚丙烯腈/碳纳米管(PAN/CNTs)复合纳米纤维。通过优化实验参数,如纺丝液浓度、纺丝电压和接收板距离等,探究PAN纤维在静电纺丝过程中最适宜的参数组合。结果表明:当纺丝液浓度为12%,纺丝电压为18 kV,接收板距离为14 cm时,PAN纤维的形貌规整、尺寸均一,平均直径为200 nm。加入CNTs后,纤维直径增至400 nm,但PAN的结构没有改变。当CNTs含量为3%时,纤维的形貌最佳。VOCs吸附实验表明:CNTs的引入使得PAN纤维膜对二甲苯气体的吸附效率提升至90%左右。
Nanofibers have the advantages of high strength,high specific surface area,ultra-fine size,high flexibility and biocompatibility,and are widely used in various fields.Polyacrylonitrile/carbon nanotube(PAN/CNTs)composite nanofibers with adsorption function for volatile organic compounds(VOCs)were prepared based on electrospinning technology.By optimizing the experimental parameters,such as spinning solution concentration,spinning voltage and receiving plate distance,the most suitable combination of parameters for PAN fibers in the electrospinning process was explored.The results show that when the concentration of spinning solution is 12%,the spinning voltage is 18 kV.When the distance between the receiving plates is 14 cm,the morphology of PAN fibers is regular,the size is uniform,and the average diameter is 200 nm.After the addition of CNTs,the fiber diameter increases to 400 nm,but the structure of PAN does not change.When the content of CNTs is 3%,the morphology of the fibers is the best.The adsorption experiment of VOCs shows that the adsorption efficiency of PAN fiber membrane for xylene gas increased to about 90%by the introduction of CNTs.
作者
谢立成
姜艳
张志军
成骏峰
XIE Li-cheng;JIANG Yan;ZHANG Zhi-jun;CHENG Jun-feng(Huaide College,Changzhou University,Jingjiang 214500,China;School of Petrochemical Engineering,Changzhou University,Changzhou 213164,China;School of Materials Science and Engineering,Changzhou University,Changzhou 213164,China)
出处
《塑料科技》
CAS
北大核心
2024年第2期44-48,共5页
Plastics Science and Technology
基金
江苏省高等学校自然科学基金(22KJA430001)。
