Microwave activation technology of electro-spun PAN fibers and their adsorptivity;

A modified Fe-polyacrylonitrile complex(Fe-AO-PAN) was prepared by reaction between the amidoximated PAN fibers(AO-PAN) and ferric chloride.

Studies have been carried out on the tensile strength,molecular weight,crystallinity and the shrinkage rate in boiling water of four different PAN fibers by strength and elongation instrument,viscometer,X-ray dif- fractometer,and so on.

PAN fibers with different drawing ratio and different preoxidation degree were investigated by means of sound velocimeter and X-ray diffraction meter.

In this paper, dielectric and semiconductor behaviors of PAN carbon fiber have been analyzed by means of Tettex bridge(type 2801),microconductor analyzer(type 2C-36).

Relations between sp~2 hybrid C—C bond length and structure parameters of PAN-based carbon fibers;

The electrical resistivity and preferred orientation of PAN-based carbon fibers with different carbonization temperatures are measured, the changing relations of electrical resistivity with carbonization temperature and preferred orientation are obtained, and the relations of electrical resistivity with carbonization temperature and preferred orientation are discussed from electron structure.

The samples of PAN-based carbon fiber with different carbon temperature are measured using Raman scattering method.

PAN-based carbon fibers,copper and boride were mixed by grinding method, then heated in a graphitizing furnaces at high temperature.

The PAN-based carbon fibers heat-treated at 2 400～3 000 ℃ were investigated by means of Raman spectroscopy and Keithley 2 400 source meter.

The surface character,microstructure,and surface chemical composition of PAN-based carbon fibers were investigated by SEM,WAXRD,SAXS,XPS and Raman spectroscopy.