Functional transparent nanocomposite film with thermochromic and hydrophobic properties fabricated by electrospinning and hot-pressing approach

Abstract This work developed novel transparent nanocomposite film with thermochromic and hydrophobic properties fabricated by electrospinning and hot-pressing approach. The homogeneous composite nanofibers mats were obtained via co-electrospinning the organic polymer polymethylmethacrylate (PMMA) and inorganic VO 2 (M) nanoparticles. The VO 2 (M) nanoparticles with average diameter of 30 nm were distributed in the electrospun nanofibers and isolated from air simultaneously, which was beneficial for antioxidation of the VO 2 (M). Additionally, the mechanical property of the nanocomposite films with different stacked layers was always improved significantly via hot-pressing treatment. Moreover, the thermochromic property of the film showed the solar modulation ability Δ T sol of 7.31% and the luminous transmittance of 29.6% at 550 nm. Thus, the study offered a new notion for the energy-saving material, and it could be a good promising substitute of smart glass.