A glass substrate pretreatment method and a method for manufacturing solar cell encapsulation glass using it

Abstract

A glass substrate pretreatment method, comprising: immersing the glass substrate in a mixed solution of concentrated sulfuric acid and hydrogen peroxide for a certain period of time, taking it out, cleaning it ultrasonically with deionized water, and then drying it in an oven to obtain surface hydroxylation. the glass substrate; put the surface hydroxylated glass substrate in the mixed solution of 3-aminopropyltriethoxysilane and ethanol, let it stand for a certain period of time, take out the glass substrate and dry it with nitrogen, then put After drying in an oven for a certain period of time, cool to room temperature to obtain an aminated glass substrate, which is the pretreated glass substrate. A method for manufacturing solar cell encapsulation glass, using a glass substrate pretreated by surface amination as a base material, and using a modified silica sol containing epoxy groups as a coating solution, thereby obtaining an anti-reflection film with good adhesion and an anti-reflection film The solar cell encapsulation glass has good layer hardness and friction resistance, and the prepared solar cell encapsulation glass is not easy to fall off under the 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. [000...

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