Ultra-white float photovoltaic glass and preparation method thereof

• Main Authors: ZHANG WENXUE, JIANG MINGWU, WAN JUNPENG, SUN PENG
• Format: Patent
• Language: Chinese; English
• Published: 31.10.2023
• Subjects: CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; GLASS; JOINING GLASS TO GLASS OR OTHER MATERIALS; MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES; METALLURGY; MINERAL OR SLAG WOOL; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS

The invention discloses ultra-white float photovoltaic glass and a preparation method thereof, and belongs to the field of photovoltaic glass. The ultra-white float photovoltaic glass disclosed by the invention is prepared from the following components in percentage by weight: 71% to 73% of SiO2, 0.5% to 1.5% of Al2O3, 0.008% to 0.012% of Fe2O3, 7.5% to 9.5% of CaO, 3.5% to 5.0% of MgO, 12.5% to 14.0% of Na2O, 0.2% to 1.0% of K2O and 0.2% to 0.4% of SO3. By adjusting the composition of the glass and cooperatively adjusting a melting process and a tin bath forming process, the content proportion of ferrous iron in the ultra-white float photovoltaic glass is reduced, the content proportion of ferric iron is improved, and meanwhile, the tin count in the glass is reduced, so that the purposes of improving the transmittance, flatness and weather resistance of the ultra-white float photovoltaic glass are achieved; and the glass meets the quality requirement of photovoltaic glass and can be applied to a photovoltaic