Method for pretreating glass substrate and method for manufacturing solar cell packaging glass by using glass substrate

Abstract

The invention relates to a method for pretreating a glass substrate. The method comprises the following steps of: immersing the glass substrate into a mixed solution of concentrated sulfuric acid and hydrogen peroxide for certain time; taking out, then carrying out ultrasonic cleaning by using deionized water, and then placing into a baking box for drying to obtain a glass substrate with a hydroxylated surface; placing the glass substrate with the hydroxylated surface into a mixed solution of 3-aminopropyl triethoxysilane and ethanol, standing, and reacting for certain time; taking out the glass substrate, blow-drying by using nitrogen, then placing into the baking box to dry for certain time, and cooling to room temperature to obtain an aminated glass substrate, namely the completely pretreated glass substrate. The manufacturing method of solar cell packaging glass comprises the following step of: preparing the solar cell packaging glass which has the advantages of good antireflection film adhesive force and good antireflection film layer hardness and abrasion resistant property by using the glass substrate with an amination pretreated surface as a base material and using modified silicon sol which contains an epoxy group as film coating liquid. The prepared solar cell packaging glass has the advantage that the antireflection film layer is difficult to desquamate in an aging environment.

Description

technical field [0001] The invention relates to the technical field of solar photoelectric conversion glass manufacturing, in particular to a glass substrate pretreatment method and a method for manufacturing solar cell encapsulation glass using the same. Background technique [0002] Solar cell encapsulation glass is used in solar photovoltaic power generation. In solar photovoltaic power generation, the better the light transmittance of solar cell encapsulation glass, the higher the energy conversion efficiency of solar photovoltaic power generation. In the prior art, in order to improve the light transmittance of the solar cell packaging glass, an anti-reflection film is coated on the surface of the solar cell packaging glass to reduce the reflection loss of the solar cell packaging glass surface to sunlight and improve the light utilization rate of the solar cell module. , thereby improving the energy conversion efficiency of solar photovoltaic power generation. [00...

AI Technical Summary

Problems solved by technology

However, since van der Waals force and hydrogen bond are physical bonds, the force is weak, and the surface active hydroxyl groups of the glass substrate without pretreatment are less, and the dehydration condensation reaction between the surface active hydroxyl groups of the glass substrate and the surface hydroxyl groups of the silica sol requires high temperature heating treatment so that few Si-O-Si bonds are formed

Therefore, the adhesion of the anti-reflection film on the surface of the glass substrate is not good, so that the hardness and friction resistance of the anti-reflection film are poor, and the anti-reflection film is easy to fall off in the aging environment, resulting in the deterioration of the anti-reflection film. Permeable failure