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An Efficient Strategy for Reinforcing Flexible Ceramic Membranes
- Source :
- Nano Letters. 21:9419-9425
- Publication Year :
- 2021
- Publisher :
- American Chemical Society (ACS), 2021.
-
Abstract
- Herein, we present a facile reinforcement method for the large-scale fabrication of highly flexible, mechanically stable, temperature-resistant ceramic lightweight membranes based on the cross-linked assembly of zirconia-silica (ZrO2-SiO2) nanofibrous and montmorillonite (MMT) nanosheets through electrospinning and a subsequent calcination process. The resulting MMT@ZrO2-SiO2 membranes exhibit high flexibility with a bending rigidity of 0.2 cN mm-1, robust mechanical performance with a tensile strength of up to 1.83 MPa, robust fire resistance, and temperature-invariant mechanical stability from -196 to 1000 °C. The thermal superinsulation with a thermal conductivity as low as 0.026 W m-1 K-1 and the improved mechanical strength can be attributed to the cross-linked interfacial interaction between the ZrO2-SiO2 nanofibers and the MMT nanosheets. Additionally, a firefighter uniform with MMT@ZrO2-SiO2 membranes inside features a superior thermal protective property up to the A2 level (combined flame and radiant exposure) and an excellent fire resistance of up to 1000 °C, which is ideal for next-generation firefighter uniform manufacturing.
- Subjects :
- Superinsulation
Materials science
Fabrication
Mechanical Engineering
Bioengineering
General Chemistry
Condensed Matter Physics
Electrospinning
law.invention
Membrane
law
visual_art
Nanofiber
Ultimate tensile strength
visual_art.visual_art_medium
General Materials Science
Calcination
Ceramic
Composite material
Subjects
Details
- ISSN :
- 15306992 and 15306984
- Volume :
- 21
- Database :
- OpenAIRE
- Journal :
- Nano Letters
- Accession number :
- edsair.doi.dedup.....d10391aa761dfc353a63607389690fec