Nano structured silica aerogel films by dip-coating process.

Abstract

The optimum values of the porosity, pore size and transmittance of the coating layer were investigated to give the lower thermal conductivity of the smart glazing. The porosity of the aerogel film is 90%, and the pores with 50micron size are uniformly distributed through the film. The transmittance and thermal conductivity of smart glazing with 500 mu m thickness is at about 80% in the visible range(380-780nm) and 0.15 W/(m.K) respectively.