Cationic UV-curable glass ink, product produced by using same and production process thereof

Abstract

The invention discloses a cationic UV-curable glass ink, which comprises the following raw materials by weight: 5-95 parts of cationic photosensitive resin; 0.1-30 parts of an epoxy silane photosensitive monomer / oligomer; 1-10 parts of a cationic photosensitizer; 0.1-30 parts of a weather-resistant pigment; 0.01-20 parts of a filler; and 0.01-3 parts of an ultraviolet light absorber. The cationic UV-curable glass ink does not contain VOC, has excellent outdoor weather resistance and water resistance, and has excellent adhesion to substrates such as glass. The invention further discloses a product produced by adopting the cationic UV-curable glass ink and a production process.

Description

technical field [0001] The invention relates to the technical field of ink and paint, in particular to a cationic UV curable glass ink, a product produced by using the same and a production process. Background technique [0002] Solar photovoltaic cells are a new type of power generation system that uses the photovoltaic effect of materials to directly convert solar radiation energy into electrical energy, including silicon solar photovoltaic cells, thin-film solar photovoltaic cells, and perovskite solar photovoltaic cells. [0003] Silicon solar photovoltaic cells occupy the mainstream of the market, while thin-film solar photovoltaic cells and perovskite solar photovoltaic cells have just entered the commercialization stage. [0004] The traditional structure of silicon solar photovoltaic cells is composed of tempered glass, EVA film, high conversion efficiency monocrystalline silicon or polycrystalline silicon solar cells, EVA film and back plate from the outside to the ...

AI Technical Summary

Problems solved by technology

[0010] Free radical photocurable inks have large shrinkage, poor adhesion to glass, and poor water resistance. The photosensitive polymer structure contains unsaturated double bonds, and most of them contain benzene rings and low bond energy compounds. Therefore, the free radical UV curable film The light resistance is poor. Most UV coatings will lose light, change color, crack, powder or fall off after hundreds of hours of light test, which cannot meet the actual use requirements of outdoor solar products.

[0011] Publication Nos. CN110437676A and CN110606668A two patent documents disclose the combination of modified fluorocarbon resin and UV resin, which not only has excellent weather resistance, but also greatly improves the surface hardness of UV-cured coating and reduces VOC emissions. However, due to UV resin The compatibility with fluorocarbon resin is not good, the resulting mixture has a high viscosity, and the coating is easily cloudy after the solvent volatilizes, which reduces the light transmittance, thereby affecting the photoelectric conversion efficiency of the solar module; the volatilization of the organic solvent in the ink will cause printing or Viscosity increases during the coating process, resulting in blockage of mesh, air bubbles, inconsistent coating thickness, unstable quality and other disadvantages. A small amount of solvent will also pollute the environment, affect the health of operators, and there are certain hidden dangers in production safety

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