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High-strength super-hydrophobic double-layered PBO nanofiber-polytetrafluoroethylene nanocomposite paper for high-performance wave-transparent applications.
- Source :
-
Science bulletin [Sci Bull (Beijing)] 2022 Nov 15; Vol. 67 (21), pp. 2196-2207. Date of Electronic Publication: 2022 Oct 13. - Publication Year :
- 2022
-
Abstract
- Poly(p-phenylene-2,6-benzobisoxazole) nanofiber (PNF) paper is facing unprecedented challenges in enhancing the interaction between the PNFs and improving its hydrophobicity. In this work, a sol-gel film transformation approach was developed to fabricate high-strength PNF paper. Iron ions formed coordination bonds between PNFs to obtain a preforming three-dimensional, interconnective nanofiber network. Subsequently, polytetrafluoroethylene (PTFE) particles were sprayed onto the surface of the paper, followed by thermal treatment to obtain double-layered PTFE-P/PNF nanocomposite paper. The nanocomposite paper presents incredible tensile strength (271.6 MPa, increased by 52.9%), folding endurance, super-hydrophobicity, and self-cleaning performances. Moreover, it exhibits low dielectric constant (2.06) and dielectric loss tangent (0.0133) values. According to the wave-transparent model for a double-layered dielectric established by Maxwell's equations, the wave-transparent coefficients of electromagnetic waves incident from both sides of the paper are 97.6% (PNF side) and 96.0% (PTFE/P(S-co-BCB-co-MMA) side), respectively. The PTFE-P/PNF nanocomposite paper possesses great potential in the fields of wave-transparent applications.<br />Competing Interests: Conflict of interest The authors declare that they have no conflict of interest.<br /> (Copyright © 2022 Science China Press. Published by Elsevier B.V. All rights reserved.)
Details
- Language :
- English
- ISSN :
- 2095-9281
- Volume :
- 67
- Issue :
- 21
- Database :
- MEDLINE
- Journal :
- Science bulletin
- Publication Type :
- Academic Journal
- Accession number :
- 36545995
- Full Text :
- https://doi.org/10.1016/j.scib.2022.10.011