含二氧化硅、二氧化钛和氧化铋纳米颗粒的聚丙烯腈纳米纤维复合材料的制造及其物理性能研究

Manufacturing and investigation of physical properties of polyacrylonitrile nanofibre composites with SiO2, TiO2 and Bi2O3 nanoparticles.

作者信息

Tański Tomasz, Matysiak Wiktor, Hajduk Barbara

机构信息

Department of Materials Processing Technology, Management and Technology in Materials, Institute of Engineering Materials and Biomaterials, Silesian University of Technology, Konarskiego 18a Str., 44-100 Gliwice, Poland; Center for Nanotechnology, Silesian University of Technology, Konarskiego 18a Str., 44-100 Gliwice, Poland.

出版信息

Beilstein J Nanotechnol. 2016 Aug 5;7:1141-55. doi: 10.3762/bjnano.7.106. eCollection 2016.

DOI:10.3762/bjnano.7.106

PMID:27547631

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4979636/

Abstract

The aim of this study was to produce nanocomposite polymer fibres, consisting of a matrix of polyacrylonitrile (PAN) and a reinforcing phase in the form of SiO2/TiO2/Bi2O3 nanoparticles, by electrospinning the solution. The effect of the nanoparticles and the electrospinning process parameters on the morphology and physical properties of the obtained composite nanofibres was then examined. The morphology of the fibres and the dispersion of nanoparticles in their volume were examined using scanning electron microscopy (SEM). All of the physical properties, which included the band gap width, dielectric constant and refractive index, were tested and plotted against the concentration by weight of the used reinforcing phase, which was as follows: 0%, 4%, 8% and 12% for each type of nanoparticles. The width of the band gap was determined on the basis of the absorption spectra of radiation (UV-vis) and ellipsometry methods. Spectroscopic ellipsometry has been used in order to determine the dielectric constant, refractive index and the thickness of the obtained fibrous mats.

摘要

本研究的目的是通过对溶液进行静电纺丝来制备纳米复合聚合物纤维，该纤维由聚丙烯腈（PAN）基质和SiO2/TiO2/Bi2O3纳米颗粒形式的增强相组成。然后研究了纳米颗粒和静电纺丝工艺参数对所得复合纳米纤维的形态和物理性能的影响。使用扫描电子显微镜（SEM）检查纤维的形态以及纳米颗粒在其体积中的分散情况。测试了所有物理性能，包括带隙宽度、介电常数和折射率，并将其与所用增强相的重量浓度进行绘图，每种纳米颗粒的重量浓度分别为：0%、4%、8%和12%。带隙宽度是根据辐射吸收光谱（紫外-可见）和椭偏测量法确定的。为了确定所得纤维垫的介电常数、折射率和厚度，使用了光谱椭偏仪。