Photo-curing PVB or EVA material for production of solar battery pack

Abstract

The invention discloses a photo-curing PVB or EVA material for production of a solar battery pack, which is characterized in that: the PVB or EVA is manufactured into films, and photoinitiators are uniformly arranged in the films, and 25-93 percent of the PVB or EVA and 0.2-10 percent of the photoinitiators are arranged by weight percentage; the photoinitiator adopts phenyl ketone compounds; after the invention is used, the production effect is good, the production efficiency is high, the operation is simple, and the production time can be improved by more than 3 times compared with the traditional production mode; the whole production process does not need other heating and warning-up curing, and the energy can be saved compared with the traditional mode; the working efficiency is high, so as to greatly improve the output of the solar BIPV modules and thin film solar cell modules, and the energy saving effect is good in the production process.

Description

technical field [0001] The invention relates to PVB or EVA film materials used in the production of solar cell components, and belongs to a kind of chemical material technology, in particular, relates to PVB used in the production and solidification of solar building photovoltaic integrated components (BIPV components) and thin film solar cell components Or EVA material. Background technique [0002] Ordinary crystalline silicon solar modules are mainly placed in a laminator for pressing, heated under a certain vacuum to melt the EVA, and then laminated. The usual heating, lamination and pick and place time is about 20 to 30 minutes. The upper and lower laminated surfaces of crystalline silicon BIPV modules are all tempered glass, and the thickness of tempered glass is much larger than that of ordinary crystalline silicon solar module tempered glass in consideration of meeting the requirements of wind resistance, load bearing and earthquake resistance of buildings. The thi...

AI Technical Summary

Problems solved by technology

However, due to the thicker tempered glass of BIPV modules, and glass is not a good conductor of heat, adding BIPV modules to the laminator for pressing and processing, using heat conduction to melt the PVB or EVA film, requires a heating time of 20 to 40 minutes. , the processed components need to be heated and cured. In the production process of ordinary components, the heating temperature is 120-140 ℃ for heat preservation and curing, while the crystalline silicon BIPV components need to be heated to 160-180 ℃ for heat preservation and curing, and the curing time is more than 10 minutes.

Ordinary thin-film solar cell components also need the above-mentioned heating and curing process, so whether it is to produce crystalline silicon BIPV components or thin-film solar cell components, it takes a lot of time and energy consumption, and its production efficiency is low, so a new method is needed. PVB or EVA film to increase the output of the above two components and save production energy consumption

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