Journal
FIBERS AND POLYMERS
Volume 12, Issue 1, Pages 145-150Publisher
KOREAN FIBER SOC
DOI: 10.1007/s12221-011-0145-x
Keywords
Electrospinning; PAN/FeCl3 composite nanofibers; Structure; Surface morphology; Combustion property
Categories
Funding
- National Natural Science Foundation of China [51006046]
- Natural Science Fund of Jiangsu Province [BK2010140]
- Research Fund for the Doctoral Program of Higher Education of China [200802951011, 20090093110004]
- State Key Laboratory of Fire Science, University of Science and Technology of China [HZ2009-KF06]
- Fundamental Research Funds for the Central Universities [JUSRP20903]
- Jiangnan University [2008LYY002]
- Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University [KLET0909]
- Key Laboratory of Green Processing and Functional Textile of New Textile Materials, Ministry of Education, Wuhan Textile University [GTKL2009004]
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In this work, the pure polyacrylonitrile (PAN) nanofibers and PAN/FeCl3 composite nanofibers were prepared by an electrospinning process. Electrospinning solution properties including viscosity, surface tension and conductivity, had been measured and combined with the results of Scanning electron microscopy (S EM), Atomic force microscope (AFM) and Micro Combustion Calorimeter (MCC) to investigate the effects of FeCl3 on the structure, surface morphology and combustion property of electrospun PAN nanofibers, respectively. It was found from SEM images that the diameters of composite nanofibers were decreased with the addition of FeCl3, which was attributed predominantly to the increased conductivity of the polymer solutions compared to viscosity and surface tension. The AFM analyses revealed that the surface morphology of electrospun nanofibers changed from smooth and wrinkle-like structure (without FeCl3) to rough and ridge-like structure (with FeCl3). The results characterized by MCC showed that the loading of FeCl3 decreased the heat release rate (HRR) and improved the combustion property of composite nanofibers.
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