国产成人亚洲精品无码青app,白丝紧致爆乳自慰喷水,国产疯狂女同互磨高潮在线观看,jizzjizz少妇亚洲水多

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 (SEM), 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.