Clogging-Free Electrospinning of Micro-And Nanofibers From Polymer Solutions and Its Blends

Clogging-Free Electrospinning of Micro-And Nanofibers From Polymer Solutions and Its Blends
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利用聚合物溶液及其共混物无堵塞静电纺丝微纤维和纳米纤维

DOI:
10.1007/s13538-022-01087-7
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发表时间:
2022
影响因子:
1.6
通讯作者:
Alagiriswamy A. A.
Alagiriswamy A. A.
中科院分区:
物理与天体物理4区
文献类型:
--
作者:
Satheesh Arjun;Ramaraj Sankar Ganesh;Alagiriswamy A. A.

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采用传统的电纺技术,通过控制聚合物的共混比例,合成了具有高比表面积三维结构的聚苯乙烯(SEBS)和聚乙烯咔唑(PVK)掺杂SnO2的微棒和纳米棒(具有看似纳米功能)。在PVK/SEBS共混物中加入SnO2(比例为1:3、1:1和3:1)可显著提高微纤维和纳米纤维的孔隙率。通过X射线衍射仪、场发射扫描电子显微镜、热重分析、傅立叶变换红外光谱等测试手段,证实了SnO2与聚合物共混物形成了多孔微纳米纤维。结果表明,所掺入的纳米颗粒能够被探测到,并有望与PVK和SEBS等聚合物的官能团形成复杂的结合。已经观察到纤维多孔网络的面密度降低,并有修辞上的尝试来量化所获得的结果。然而,微米和纳米纤维的热重分析证实,与环状结构相比,热性能得到了增强。
High surface area 3D structured torus, micro- and nanorods (with plausible nano-functionalities) of Styrene Ethylene Butylene Styrene (SEBS), and Polyvinyl Carbazole (PVK) incorporated SnO2are synthesized using conventional electrospinning technique by controlling the polymer blend ratios. The incorporation of SnO2in such PVK/SEBS blends (ratios such as 1:3, 1:1 and 3:1) significantly enhanced the porosity of the micro and nanofibers. The formation of porous micro and nanofibers on the incorporation of SnO2with polymer blends were confirmed via X-ray diffraction analysis (XRD), field emission scanning electron microscope (FESEM), thermo gravimetric analysis (TGA), and Fourier-transform infrared spectroscopy (FTIRS). Results indicated that incorporated nanoparticles were able to be probed and likely expected to create complex bonding with functional groups of polymers such as PVK and SEBS. The reduction in areal density of fibro-porous networks has been observed and there were rhetorical attempts to quantify the obtained results. However, thermogravimetric analyses of micro and nanofibers confirmed the enhancement of thermal properties compared to torus structures.
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