Carbon-black-modified carbon nanofibers were prepared by electrospinning,and the effects of the carbon black content and processing temperature on the physical and chemical properties of the resulting composites were ...Carbon-black-modified carbon nanofibers were prepared by electrospinning,and the effects of the carbon black content and processing temperature on the physical and chemical properties of the resulting composites were investigated.The results showed that the conductivity of carbon-black-modified nanofibers increased with the carbon black content.The addition of carbon black in a 20%mass ratio increased the conductivity of the composite(0.75 S/cm)by 230%compared with the undoped nano-fiber(2.47 S/cm),while the adulteration with 5%CB allowed the preservation of the mechanical properties of the composites.The fabricated carbon-black/carbon-nanocomposite fibers exhibited excellent oil absorption and electrothermal conversion performance.Furthermore,the conductivity and oil absorption capacity increased with increasing carbonization temperature.With a carbonization temperature of 1000℃(5%carbon black),the voltage was 31 V,the current was 0.66 A,and the surface temperature of the composite reached 234.1℃.The overall enhancement in physical properties upon the addition of even low amounts of carbon black makes these composites advantageous for future industrial applications.展开更多
基金This work was supported by the National Natural Science Foundation of China(No.51962029)the Inner Mongolia Autonomous Region Science and Technology Program,China(No.2019GG265)+2 种基金the Natural Science Foundation of Inner Mongolia Autonomous Region,China(No.2018MS05024)the Program for Young Talents of Science and Technology in Universities of Inner Mongolia Autonomous Region,China(No.NJYT-19-A08)the Program for High-level Talents of Inner Mongolia Agricultural University,China(No.NDGCC2016-20).
文摘Carbon-black-modified carbon nanofibers were prepared by electrospinning,and the effects of the carbon black content and processing temperature on the physical and chemical properties of the resulting composites were investigated.The results showed that the conductivity of carbon-black-modified nanofibers increased with the carbon black content.The addition of carbon black in a 20%mass ratio increased the conductivity of the composite(0.75 S/cm)by 230%compared with the undoped nano-fiber(2.47 S/cm),while the adulteration with 5%CB allowed the preservation of the mechanical properties of the composites.The fabricated carbon-black/carbon-nanocomposite fibers exhibited excellent oil absorption and electrothermal conversion performance.Furthermore,the conductivity and oil absorption capacity increased with increasing carbonization temperature.With a carbonization temperature of 1000℃(5%carbon black),the voltage was 31 V,the current was 0.66 A,and the surface temperature of the composite reached 234.1℃.The overall enhancement in physical properties upon the addition of even low amounts of carbon black makes these composites advantageous for future industrial applications.
