Glass powder and preparation method thereof, conductive silver paste and preparation method and application thereof
A technology of conductive silver paste and glass powder, which is applied in the field of glass powder and its preparation, conductive silver paste and its preparation, and can solve the problems of wettability, conductive performance and adhesion reduction, affecting the conversion efficiency of black silicon solar cells, etc.
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[0034] The present invention also provides a preparation method for the glass powder described in the above technical solution, comprising the following steps:
[0035] The components are mixed and melted, and quenched to obtain glass frit;
[0036] The glass frit is ground to obtain glass powder.
[0037] In the invention, the components are mixed and melted, and then quenched to obtain glass frit. In the present invention, each component is preferably mixed to obtain a mixture; the mixture is heated to obtain a heating material; the heating material is melted to obtain a glass liquid; the glass liquid is quenched to obtain a glass frit; the glass frit is ground, Get glass powder.
[0038] In the present invention, the various components are preferably mixed to obtain a mixture. In the present invention, the mixing is preferably carried out in a mixer, and the present invention has no special requirements on the mixing time, as long as the materials can be mixed evenly.
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Embodiment 1
[0054] Prepare glass powder:
[0055] Prepare glass powder according to the following parts by mass: SiO 2 5 copies, Bi 2 o 3 20 parts, PbO 30 parts, TeO 2 40 parts, ZnO 2 parts, Al 2 o 3 1.5 parts, W 2 o 3 0.5 parts and 1 part of BaO.
[0056] (1) Put the raw materials of the above components into a mixer, and mix for 4 hours to obtain a mixture;
[0057] (2) Put the mixture in a corundum crucible, then put the corundum crucible in a high-temperature sintering furnace, heat it from room temperature to 500°C at a heating rate of 10°C / min, and keep it warm for 0.5h to obtain a heating material; raise the temperature of the heating material to 1000°C and keep warm for 1 hour to obtain molten glass; quickly pour the molten glass into deionized water, quench to obtain glass frit, and dry at 100°C for 4 hours to obtain dried glass frit.
[0058] (3) Dry the glass frit. During the dry grinding process, the volume ratio of the glass frit and the ball is 1:1. The volume of th...
Embodiment 2
[0063] Prepare glass powder according to the following parts by mass: SiO 2 5 copies, Bi 2 o 3 15 parts, PbO 35 parts, TeO 2 40 parts, ZnO 2 parts, Al 2 o 3 1.5 copies, In 2 o 3 0.5 part and 1 part CaO.
[0064] (1) Put the raw materials of the above components into a mixer, and mix for 4 hours to obtain a mixture;
[0065](2) Put the mixture in a corundum crucible, then put the corundum crucible in a high-temperature sintering furnace, heat it from room temperature to 500°C at a heating rate of 10°C / min, and keep it warm for 0.5h to obtain a heating material; raise the temperature of the heating material to 1000°C and keep warm for 1 hour to obtain molten glass; quickly pour the molten glass into deionized water, quench to obtain glass frit, and dry at 100°C for 4 hours to obtain dried glass frit.
[0066] (3) Dry the glass frit. During the dry grinding process, the volume ratio of the glass frit and the ball is 1:1. The volume of the glass frit and the ball accounts ...
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Abstract
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