Comparison of Structure and Properties among Various PAN Fibers for Carbon Fibers

材料科学技术（英文）, 2005, 21(3): 376-380.

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1.College of Materials Science and Engineering, Shandong University, Jinan 250061, China

2.College of Materials Science and Engineering, Shandong University, Jinan 250061, China

3.College of Materials Science and Engineering, Shandong University, Jinan 250061, China

4.College of Materials Science and Engineering, Shandong University, Jinan 250061, China

基金项目: This work was supported by the special new material item of Ministry of National Science and Technology of China under(2002AA304130)

Comparison of Structure and Properties among Various PAN Fibers for Carbon Fibers

Keywords： Polyacrylonitrile (PAN) fiber

To find out the high-quality polyacrylonitrile (PAN) fibers, some differences are sought by comparing domestic PAN fibers with the foreign ones. X-ray diffractometer (XRD), transmission electron microscope (TEM), Fourier transform infrared (FT-IR) spectrometer, elemental analyzer, tensile-testing machine and high-temperature differential scanning calorimeter (DSC) are used to characterize the individual microstructure, chemical structure, elemental content,mechanical properties and thermal properties. It is found that high-quality PAN fibers have high density, lower titre,higher or adequate tensile strength, and they also have better conglomeration structure, smaller crystal dimension with dispersive distribution, less microvoids and flaws.

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Comparison of Structure and Properties among Various PAN Fibers for Carbon Fibers

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