A kind of glass powder for perc aluminum paste and preparation method
A glass powder and aluminum paste technology, which is applied in the field of low-temperature glass powder for photovoltaic paste, can solve the problems of decreased filling factor, increased contact resistance, damage to passivation film, etc., and achieves good wettability, adhesion and corrosion. Small, good melt leveling effect
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Embodiment 1
[0026] In the embodiment of the present invention, the raw materials of the glass powder include by weight: 10% of bismuth oxide, 24% of boron oxide, 26% of vanadium pentoxide, 6% of zinc oxide, 24% of barium oxide, and 3% of calcium oxide , aluminum phosphate 5%, aluminum oxide 2%.
[0027] The preparation of the organic binder comprises the following steps:
[0028] (1) Weigh each component according to the proportioning amount;
[0029] (2) Add the required raw materials into the mixer and mix for 20 minutes to prepare a mixed powder. Put the mixed powder into a quartz crucible and put it into an oven for baking. The baking temperature is controlled at 200°C and the baking time is 2 hours. ;
[0030] (3) Put the above-mentioned material powder into a muffle furnace for melting, the temperature is 1100°C, the holding time is 1h, and melted into molten glass;
[0031] (4) Pour the molten glass into pure water at 25°C, quench in water to obtain glass particles, and dry at 1...
Embodiment 2
[0039] The raw materials of the glass powder include by weight: 8% bismuth oxide, 4% lead oxide, 22% boron oxide, 27% vanadium pentoxide, 5% zinc oxide, 25% barium oxide, 2% magnesium oxide, phosphoric acid Zinc 4%, Aluminum Oxide 3%.
[0040] The preparation of the organic binder comprises the following steps:
[0041] (1) Weigh each component according to the proportioning amount;
[0042] (2) Add the required raw materials into the mixer and mix for 20 minutes to prepare a mixed powder. Put the mixed powder into a quartz crucible and put it into an oven for baking. The baking temperature is controlled at 200°C and the baking time is 2 hours. ;
[0043] (3) Put the above-mentioned material powder into a muffle furnace for melting at a temperature of 1050° C. for 1 hour to melt into molten glass;
[0044] (4) Pour the molten glass into pure water at 25°C, quench in water to obtain glass particles, and dry at 150°C;
[0045] (5) Put the dried glass particles into the ball ...
Embodiment 3
[0051] The raw materials of the glass powder include by weight: 5% bismuth oxide, 6% lead oxide, 26% boron oxide, 21% vanadium pentoxide, 8% zinc oxide, 23% barium oxide, 3% calcium oxide, phosphoric acid Zinc 6%, Aluminum Oxide 2%.
[0052] The preparation of the organic binder comprises the following steps:
[0053] (1) Weigh each component according to the proportioning amount;
[0054](2) Add the required raw materials into the mixer and mix for 20 minutes to prepare a mixed powder. Put the mixed powder into a quartz crucible and put it into an oven for baking. The baking temperature is controlled at 200°C and the baking time is 2 hours. ;
[0055] (3) Put the above-mentioned material powder into a muffle furnace for melting at a temperature of 1050° C. for 1 hour to melt into molten glass;
[0056] (4) Pour the molten glass into pure water at 25°C, quench in water to obtain glass particles, and dry at 150°C;
[0057] (5) Put the dried glass particles into the ball mil...
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