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Flame-retardant paper with robust hydrophobicity enabled by perfluorodecane doped SiO2 nanofibers

  • Original Paper: Nano-structured materials (particles, fibers, colloids, composites, etc.)
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Paper plays an important role in various aspects of human life. However, most of the paper materials are vulnerable to both flame and water, which seriously restrict their performance in many applications. Here, we report a new kind of flame-retardant paper with high-temperature-resistant hydrophobicity. This kind of paper was fabricated by vacuum filtration of electrospun fluorinated SiO2 fibers and methyl silicon resin. It is mechanically flexible. Its Young’s modulus is 94 MPa, similar to normal printing paper. The optimized paper demonstrated a water contact angle (WCA) of 151°, which can be maintained as high as 126° even after 30 min of annealing at the temperature of 600 °C. Finally, writing with inorganic ink can be performed on this paper with inhibited ink diffusion. The written paper can maintain its integrity after 5 min of firing by alcohol flame. The flame-retardant and hydrophobic paper here may extend the applications of paper in wide range of fields.


  • Fluorinated SiO2 nanofibers were prepared by sol-gel and electrospinning.

  • A fluoric agent was incorporated inside the matrix of SiO2 nanofibers.

  • Paper was made by filtrating SiO2 nanofibers and methyl silicone.

  • Such paper possesses excellent inflammability and robust hydrophobicity.

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This work was financially supported by the National Natural Science Foundation of China (Grant no. 51872095), and the Natural Science Foundation of Guangdong Province (Grant no. 2018A030313059).

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Correspondence to Zhijun Ma.

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Zhang, Y., Xu, Q., Jiang, B. et al. Flame-retardant paper with robust hydrophobicity enabled by perfluorodecane doped SiO2 nanofibers. J Sol-Gel Sci Technol 93, 309–314 (2020).

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