Effect of SiO filler on the optical properties of polyimide composites

Abstract

By atomic force microscopy were used to study the surface morphology of polyimide film and Polyimide - SiO filler». The revealed changes of the surface of a polymer composite material resulting from the introduction in the matrix of finely dispersed filler SiO. There was a sharp increase in the light transmittance at λ ~ 450 nm and reduction peaks andshift the boundaries of light transmittance in the ultraviolet region (λ < 300 nm). This is due to internal restructuring, is the influence of the optical centers of the polyimide film . Introduction SiO concentration of filler in the polyimide 1  wt.  %, 2 wt. % Causes no changes in light transmittance, and to a concentration of 5 wt. % It causes an increase of 15 %.