The Synthesis and Applications of Cr-Doped GLYMO and GLYMO/DAMO Surface Coating Systems for Absorbing UV-light by Sol-Gel Process

摘要

A new glass coating system,containing 7-glycidoxypropyltrimethoxysilane/Cr~(3+)(system LGLYMO/ Cr~(3+))and 7-glycidoxypropyltrimethoxysilane/N-aminoethyl-3-aminopropyltrimethoxysilane/Cr~(3+)(system II:GLYMO/DAMO/Cr~(3+)),was synthesized by the sol-gel technique for UV light absorption applications.UV-visible spectroscopy(UV-VIS)was utilized to investigate the optical properties of coating materials.Especially system II showed very low transmission in the UV wavelength regions(300-400 nm)after thermal treatment of the coated surface.The UV transmission property of surfaces did not change at 80,100,450 or 500 degC,but a T value as low as 0.07% was obtained between 150 and 450 degC.