Anti-Reflection Functionalization of Na,O-CaO-SiO2 Flat Glass
With the rapid development of photovoltaic industry in recent years,anti-reflective glass comes into researchers'sight.This article uses two-step chemical etching method to prepare Na2O-CaO-SiO2 flat glass with anti-reflective properties.The transmittance,surface morphology,cross-section film thickness,surface chemical composition,acid resistance and hardness of samples were measured by spectrophotometer,scanning electron microscope,atomic force microscope and X-ray energy spectrometer.The relationship between reaction temperature,reaction time,glass film structure and transmittance were studied.The Si—O bonds on Na2O-CaO-SiO2 flat glass surface were broken by etching glass surface with weakly alkaline mixed salt solution,and a nano film structure is formed on the surface of glass.When the corrosion reaches a certain thickness,destructive interference of a certain wavelength of light occurs on glass surface,with a maximum transmittance of 97.8％.The glass composition remains basically unchanged before and after etching,and the pencil hardness reaches 3H.
anti-reflection glasstransmittanceNa2O-CaO-SiO2 flat glasswet chemical two-step etching methodsurface micro-crackcrack extension
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