A kind of anti-pid photovoltaic glass

Abstract

The invention relates to PID (potential induced degradation)-resistant photovoltaic glass. The PID-resistant photovoltaic glass comprises basic components of common sodium calcium silicate glass, and is characterized in that the content of sodium oxide in the basic components of the common sodium calcium silicate glass is reduced by 1.5wt.%-2.8wt.% according to the weight of the basic components, and 0.5wt.%-1wt.% of boron oxide which is a novel component is added into the basic components of the common sodium calcium silicate glass according to the weight of the basic components. The PID-resistant photovoltaic glass has the advantages that the PID-resistant photovoltaic glass is processed on the premise that existing plate glass production lines and equipment are not changed and energy consumption is not increased basically, the content of the sodium oxide in compositions of the common sodium calcium silicate plate glass is reduced, the common sodium calcium silicate flat glass additionally contains a boron oxide composition, accordingly, the PID-resistant photovoltaic glass is superior in chemical stability, low in expansion rate and density and high in heat impact resistance, light transmittance and strength and is light, hard and abrasion-resistant as compared with the common plate glass, and more importantly, PID-resistant effects can be realized when the PID-resistant photovoltaic glass is applied to solar photovoltaic modules.

Description

technical field [0001] The invention relates to the technical field of glass, in particular to an anti-PID photovoltaic glass. Background technique [0002] Usually in the production of soda lime silicate glass, in order to promote the melting of batch materials, a certain amount of Na is added to the glass composition. 2 O, usually Na 2 O is mainly introduced by soda ash, and its content occupies the second position in the batch material. In the existing ordinary soda lime silicate glass, Na 2 The content of O accounts for 14 wt.%-15 wt.% by weight, and the existing ordinary soda lime silicate glass does not contain boron. [0003] The basic performance of flat glass is shown in the following aspects: [0004] 1. Chemical stability of glass [0005] Flat glass will be eroded by water, acid, alkali, salt and other chemical gases during use. The lighter ones will cause iridescence and white fog on the surface of the glass, making the glass dull, which not only affects the...

AI Technical Summary

Problems solved by technology

[0038] The purpose of the present invention is to solve the disadvantages of poor chemical stability (especially the PID effect of photovoltaic modules), high glass expansion rate, poor glass thermal stability and low hardness of ordinary soda-lime silicate glass at the present stage, and propose a kind of Anti-PID Photovoltaic Glass