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碳纤维技术最重要的一个目的是获得小直径的碳纤维,这样将会改善纤维的力学性能以及获得更大的比表面积。静电纺能够制备直径跨越几个数量级(从微米到纳米)的聚合物纤维。研究了利用乳液聚合获得的高分子质量聚丙烯腈(PAN)/二甲基甲酰胺(DMF)溶液,通过静电纺制备最小直径纳米纤维的最优化工艺,并确定了拜里数、接收距离、纺丝角度以及电场强度与PAN纳米纤维的关系。
One of the most important goals of carbon fiber technology is to obtain small diameter carbon fibers, which will improve the mechanical properties of the fibers and achieve greater specific surface area. Electrospinning enables the preparation of polymer fibers that span several orders of magnitude in diameter (from microns to nanometers). The optimum technology of preparing nanostructured nanofibers with the smallest diameter by electrospinning was studied by using poly (acrylonitrile) (PAN) / dimethylformamide (DMF) solution obtained by emulsion polymerization. The effects of Bayer number, receiving distance, Spinning angle and electric field intensity and PAN nanofibers relationship.