Characterization and Mechanism Analysis of Flexible Polyacrylonitrile-Based Carbon Nanofiber Membranes Prepared by Electrospinning 


Vol. 24,  No. 12, pp. 4195-4202, Dec.  2023
10.1007/s12221-023-00387-2


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  Abstract

Carbon nanofiber membranes have a wide range of applications in energy and environmental fields with excellent thermal stability, electrical conductivity, and chemical resistance. Electrostatic spinning is a simple and effective technique to prepare nanofiber membranes; however, electrostatically spun carbon nanofiber membranes tend to be brittle, which is limiting the application of carbon nanofiber membranes. Herein, flexible carbon nanofiber (FCNF) membranes were prepared in this study by a simple procedure of electrostatic spinning, pre-oxidation, and carbonization. During the high-temperature carbonization process, tetra-butyl titanate (TBT) is transformed into TiO2 grains. The average diameter of FCNF rose with increasing the proportion of TBT. The stress–strain curves showed the best flexibility of FCNF-1.5. The grain size of TiO2 increased to 4.5 nm when carbonized at 1000 °C. TiO2 was shown to improve flexibility by relieving the stress concentration of cracks on the fiber surface, thus reducing the fracture of the produced FCNF.

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  Cite this article

[IEEE Style]

M. Yu, B. Xin, Z. Chen, Y. Liu, "Characterization and Mechanism Analysis of Flexible Polyacrylonitrile-Based Carbon Nanofiber Membranes Prepared by Electrospinning," Fibers and Polymers, vol. 24, no. 12, pp. 4195-4202, 2023. DOI: 10.1007/s12221-023-00387-2.

[ACM Style]

Miao Yu, Binjie Xin, Zhuoming Chen, and Yan Liu. 2023. Characterization and Mechanism Analysis of Flexible Polyacrylonitrile-Based Carbon Nanofiber Membranes Prepared by Electrospinning. Fibers and Polymers, 24, 12, (2023), 4195-4202. DOI: 10.1007/s12221-023-00387-2.

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