Preparation and characterization of electrospun ultrafine polyamide-6 nanofibers
Preparation and characterization of electrospun ultrafine polyamide-6 nanofibers
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DOI：
10.1002/pi.3105
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发表时间：
2011-10
影响因子：
3.2
通讯作者：
R. Nirmala;R. Navamathavan;M. El‐Newehy;H. Y. Kim
中科院分区：
文献类型：
--
作者：
R. Nirmala;R. Navamathavan;M. El‐Newehy;H. Y. Kim
本文报道了静电纺丝技术制备超细聚酰胺-6纳米纤维并对其性能进行了表征。研究了静电纺丝对超细聚酰胺-6纳米纤维结构形成的影响。研究了超细聚酰胺-6纳米纤维的形态、结构表征和热性能，并与块状聚酰胺-6球团进行了比较。为了通过直接鉴定质量分辨组分来准确表征超细聚酰胺-6纳米纤维的结构，我们采用了基质辅助激光解吸电离飞行时间（MALDI-TOF）质谱法。场发射扫描电镜图像显示，在主纤维之间存在超细聚酰胺-6纳米纤维。聚酰胺-6纳米纤维的直径在75 ~ 110 nm之间，而超细结构则由直径约为9 ~ 28 nm的极细纳米纤维组成。MALDI-TOF光谱显示聚酰胺-6链上存在质子化和碱化离子。版权所有©2011化工学会
We report on the preparation and characterization of ultrafine polyamide-6 nanofibers by the electrospinning technique. The effect of electrospinning on the formation of ultrafine polyamide-6 nanofiber structure was examined. The morphological and structural characterizations and thermal properties of the ultrafine polyamide-6 nanofibers were investigated in comparison with bulk polyamide-6 pellets. In order to accurately characterize the ultrafine polyamide-6 nanofiber structure by direct identification of mass resolved components, we performed matrix-assisted laser desorption ionization time-of-flight (MALDI-TOF) mass spectrometry. Field emission scanning electron microscopy images revealed the presence of ultrafine polyamide-6 nanofibers bound between the main fibers. The diameter of the polyamide-6 nanofibers was observed to be in the range 75–110 nm, whereas the ultrafine structures consisted of regularly distributed very fine nanofibers with diameters of about 9–28 nm. The MALDI-TOF spectra showed the presence of protonated and sodiated ions that were assigned to polyamide-6 chains. Copyright © 2011 Society of Chemical Industry