International Scientific Journal

Thermal Science - Online First

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Fabrication of PVDF/PES nanofibers with unsmooth fractal surfaces by electrospinning: A general strategy and formation mechanism

Smaller fibers are welcome in many applications due to larger surface area, but there is a threshold for smallest fibers for a fixed spinning system. In order to further improve surface area, hierarchical structure is considered in this paper using electrospinning. A bi-solvent system is used in our experiment for fast solvent evaporation. Unsmooth nanofibers are obtained, and the formation mechanism is elucidated.
PAPER REVISED: 2020-06-20
PAPER ACCEPTED: 2020-06-20
  1. Yin, J., et al. Numerical approach to high-throughput of nanofibers by a modified bubble-electrospinning, Thermal Science, 24(2020), 4, pp.2367-2375
  2. Ahmed, A. and Xu, L. Numerical analysis of the electrospinning process for fabrication of composite fibers, Thermal Science, 24(2020), 4, pp.2377-2383
  3. Li, F., et al. A hierarchical hybrid electrode for rapid oxygen reduction reaction below 800°C, Thermal Science, 24(2020), 4, pp.2455-2462
  4. Li, X.X., et al. Nanofibers membrane for detecting heavy metal ions, Thermal Science, 24(2020), 4, pp.2463-2468
  5. Li XX, et al. The effect of sonic vibration on electrospun fiber mats, Journal of Low Frequency Noise Vibration and Active Control, 38(2019),3-4, pp. 1251-1246
  6. Zhao JH, Li XX, Liu Z. Needle's vibration in needle-disk electrospinning process: Theoretical model and experimental verification, Journal of Low Frequency Noise Vibration and Active Control, 38(2019), 3-4, pp. 1344-1338
  7. Wu, Y.K. & Liu, Y. Fractal-like multiple jets in electrospinning process, Thermal Science, 24(2020), 4, pp.2499-2505
  8. He JH. Advances in Bubble Electrospinning, Recent Patents on Nanotechnology, 13(2019), 3, pp.162 -163
  9. Fan,J. & Shang, X. Fractal heat transfer in wool fiber hierarchy, Heat Transf Res. 44 (2013), pp.399-407.
  10. Fan,J., et al. Fractal calculus for analysis of wool fiber: Mathematical insight of its biomechanism, Journal of Engineered Fibers and Fabrics, 14(2020), August, 2019, DOI: 10.1177/1558925019872200
  11. Wang, Q.L., et al. Fractal calculus and its application to explanation of biomechanism of polar hairs (vol 26, 1850086, 2018), Fractals, 27(2019), 5, 1992001
  12. Wang, Q.L., et al. Fractal calculus and its application to explanation of biomechanism of polar hairs (vol 26, 1850086, 2018), Fractals, 26(2018), 6, 1850086
  13. Liu, F.J., et al. Silkworm(Bombyx Mori) cocoon vs. wild cocoon: Multi-Layer Structure and Performance Characterization, Thermal Science, 23(2019), 4, pp. 2135-2142
  14. He,C.H., et al. Fangzhu(方诸 ) : an ancient Chinese nanotechnology for water collection from air: history, mathematical insight, promises and challenges. Mathematical Methods in the Applied Sciences, 2020: Article DOI: 10.1002/mma.6384
  15. Liu, Y.Q., et al. Air permeability of nanofiber membrane with hierarchical structure, Thermal Science, 22(2018), 4, pp. 1643-1637
  16. Yu, D. N., et al. Snail-based nanofibers, Mater Lett. 220 (2018) 5-7.
  17. Liu, Y.Q., et al. Fabrication of Beltlike Fibers by Electrospinning, Polymers, 10(2018), 10, 1087
  18. Yao, X. and He, J.H. On fabrication of nanoscale non-smooth fibers with high geometric potential and nanoparticle's non-linear vibration, Thermal Science, 2020 24(4):2491-2497
  19. Yang ZP, Zhang L, Dou F, et al. A fractal model for pressure drop through a cigarette filter, Thermal Science, 2020 24(4):2653-2659
  20. Xu LY, Li Y, Li XX, He JH. Detection of cigarette smoke using a fiber membrane filmed with carbon nanoparticles and a fractal current law, Thermal Science, 2020 24(4):2469-2474
  21. Liu, P. & He, J.H. Geometric potential: An Explanation of Nanofiber's Wettability,, Thermal Science, 22(2018), 1A, pp. 38-33
  22. Peng, N.B. & He, J.H. Insight into the Wetting Property of a Nanofiber Membrane by the Geometrical Potential, Recent Patents on Nanotechnology, 14(2020),1, pp. 70-64
  23. Yang, Z. P., et al. On the cross-section of shaped fibers in the dry spinning process: Physical explanation by the geometric potential theory, Results in Physics, 14(2019), September, 102347
  24. Tian, D., et al. Geometrical potential and nanofiber membrane's highly selective adsorption property, Adsorption Science & Technology, 37(2019), 5-6, pp.
  25. Li, X.X. & He, J.H. Nanoscale adhesion and attachment oscillation under the geometric potential. Part 1: The formation mechanism of nanofiber membrane in the electrospinning,,Results in Physics, 12(2019), March, pp. 1410-1405
  26. Zhou, C.J., et al. What factors affect lotus effect? Thermal Science, 22(2018), 4, pp. -17371743
  27. Wang, C.X., et al. Smart adhesion by surface treatment: Experimental and Theoretical Insights, Thermal Science, 23(2019), 4, pp.
  28. Fan, J., et al. Explanation of the cell orientation in a nanofiber membrane by the geometric potential theory, Results in Physics, 15(2019), December, 102537
  29. Jin, X., et al. Low frequency of a deforming capillary vibration, part 1: Mathematical model, Journal of Low Frequency Noise Vibration and Active Control, 38(2019), 3-4, pp. 1676-1680
  30. He JH. Thermal science for the real world: Reality and challenge, Thermal Science, 2020 24(4):2289-2294
  31. Tian, D., et al. Hall-Petch effect and inverse Hall-Petch effect: A fractal unification, Fractals, 26(2018), 6, 1850083
  32. Zhu, X. & Xu, W. Effect of surface tension on the behavior of adhesive contact based on Lennard-Jones potential law, J Mech Phys Solids. 111 (2018), pp.170-183.
  33. He, J.H., et al. Nano-effects, quantum-like, properties in electrospun nanofibers. Chaos, Solitons and Fractals, 33 (2007), pp. 26-37
  34. He, J.H., Liu, Y.P. Bubble Electrospinning: Patents, Promises and Challenges. Recent Patents on Nanotechnology, 14(2020), 1, pp. 3-4
  35. He,C.H., et al. Taylor series solution for fractal Bratu-type equation arising in electrospinning process, Fractals, 28(2020), 1, 2050011
  36. He, J.H. On the height of Taylor cone in electrospinning, Results in Physics, 17(2020), June, Article number 103096