Study on Thermal Insulation Properties of Nano-VO₂ Modified Plexi Glass

In this paper,the plexi glass with infrared intelligent heat insulation was prepared respectively at low and high temperature polymerization conditions,via adding nano-vanadium dioxide slurry obtained from nano-vanadium dioxide powder into the prepolymerof methyl methacrylate.The plexi glass with infrared intelligent heat insulation was characterized by scanning electron microscopy,optical and thermal insulation performances tests.The effects of morphology of nano-vanadium dioxide powder and addition amount of nano-vanadium dioxide slurry on the optical and infrared thermal insulation properties of the polymethyl methacrylate were investigated.The results show that with addition of 10% nano-vanadium dioxide slurry prepared from spherical nano-vanadium dioxide powder having a particle size of 50 nm,the obtained plexi glass has the best properties with a visible lighttransmittance of 40%,infrared and ultraviolet blocking rate of 85% and 99%,respectively.