Fig. 2: Manufacture and characterization of the metafabric.

a Schematic illustrating the direct synthesis process of PMMA aerogel fiber b Representative FE-SEM images of the PMMA fiber at different WF contents. c Solution properties under different WF contents. d Cloud point curves for the PMMA/DMAc/H2O system and PMMA/DMAc/WF/H2O system, respectively, in the ternary phase diagram. e Nitrogen physisorption isotherms and DFT pore size distribution of the PMMA fibrous membranes with different concentrations of WF. f Solution properties under different CB contents. g Schematic diagram of the dispersion mechanism of CB in solution and spinning process. h Representative FE-SEM images of the PMMA aerogel fiber at different CB contents. i Positive Material Identification pore size distribution of prepared PMMA fibrous membranes with different structures. ST surface tension, WF water-based fluoropolymer, CB carbon black, EFM electrospun fibrous membranes, AFM aerogel fibrous membranes. Error bars in c, f represent the standard deviations of three replicates. Source data are provided as a Source Data file.