An investigation on polyacrylonitrile based electrospun carbon nanofibers

سال انتشار: 1393
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 453

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شناسه ملی سند علمی:

ISPST11_284

تاریخ نمایه سازی: 6 اردیبهشت 1396

چکیده مقاله:

Polyacrylonitrile (PAN) based electrospun carbon nanofibers (CNF) were produced at different electrospinning solution concentrations. With an increase in concentration, the diameter of PAN nanofibers and diameter reduction during carbonization process increased, whereas extent of reactions decreased due to more difficult diffusion of heat into fibers. Extent of graphitic structure and graphitic crystallite size were larger in fine CNF. Electrical conductivity was also higher in fine nanofibers as a result of increased interconnection between fibers. Fiber rupture in diameters less than optimum, however, led to an intense reduction in electrical conductivity of fibers. Results indicated the importance of identifying optimum concentration for obtaining CNF with desired properties.

کلیدواژه ها:

Carbon nanofibers- PAN- Morphology- Microstructure- Electrical conductivity

نویسندگان

Shahram Arbab

ATMT Research Institute, Department of Textile Engineering, Amirkabir University, Tehran, Iran

Arash Teimouri

Department of Textile Engineering, University of Guilan, Rasht, Iran

Babak Noroozi

Department of Textile Engineering, University of Guilan, Rasht, Iran

Hamideh Mirbaha

Department of Textile Engineering, Amirkabir University of Technology, Tehran, Iran