Processing method of nano-aluminum powder ink for sol-gel type inkjet printer
An inkjet printer and sol-gel technology, which is applied in the processing field of thin-film solar cell nano-aluminum powder ink, can solve the problems of low efficiency of solar cells, and achieve the effects of simple production process, lower price and low manufacturing cost
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Embodiment 1
[0029] At a temperature of 85°C, mix and stir 4% aluminum isopropoxide and deionized water for 1 hour for hydrolysis, add nitric acid at intervals to form a white transparent alumina sol-gel, and prepare the nano-aluminum powder according to the mass ratio 1% was gradually added to the alumina sol-gel for blending, and then the blended sol-gel was stirred for 1.5 hours with a stirrer with a rotating speed of 10,000 rpm, so that the blended sol-gel was uniformly dispersed, and the mass ratio was mixed during the stirring and dispersing process Add 0.02% EFKA-4300 dispersant to the blended sol-gel in three batches, and then add 1% polyacryl butyral to the above sol-gel in two batches within 1.5 hours, and continue stirring After 1.5 hours, a sol-gel type nano-aluminum powder ink for inkjet printers with excellent performance was obtained.
[0030] The ink of this embodiment was tested according to the national standards QB / T2730.1-2005, QB / T2603-2007, GB / T13217.2-2009, GB / T18724...
Embodiment 2
[0032] At a temperature of 90°C, mix and stir 6% aluminum isopropoxide and deionized water for 1 hour for hydrolysis, add nitric acid at intervals to form a white transparent alumina sol-gel, and prepare the nano-aluminum powder according to the mass ratio 3% was gradually added to the alumina sol-gel for blending, and then the blended sol-gel was stirred for 2 hours with a stirrer with a rotating speed of 50,000 rpm, so that the blended sol-gel was evenly dispersed. During the stirring and dispersing process, the mass ratio Add 0.05% EFKA-4300 dispersant to the blended sol-gel in three batches, and then add 3% polyacryl butyral to the above sol-gel in two batches within 2 hours, and continue stirring After 2 hours, a sol-gel type nano-aluminum powder ink for inkjet printers with excellent performance was obtained.
[0033]The ink of this embodiment was tested according to the national standards QB / T2730.1-2005, QB / T2603-2007, GB / T13217.2-2009, GB / T18724-2008 / ISO2836:2004 resp...
Embodiment 3
[0035] At a temperature of 95°C, mix and stir 8% aluminum isopropoxide and deionized water for 1 hour for hydrolysis, add nitric acid at intervals to form a white transparent alumina sol-gel, and prepare the nano-aluminum powder according to the mass ratio 5% was gradually added to the alumina sol-gel for blending, and then the blended sol-gel was stirred for 2.5 hours with a stirrer with a rotating speed of 80,000 rpm, so that the blended sol-gel was evenly dispersed. During the stirring and dispersing process, the mass ratio Add 0.08% EFKA-4300 dispersant to the blended sol-gel in three batches, then add 5% polypropylene butyral in two batches within 2.5 hours to the above sol-gel, and continue stirring After 2.5 hours, a sol-gel type nano-aluminum powder ink for inkjet printers with excellent performance was obtained.
[0036] The ink of this embodiment was tested according to the national standards QB / T2730.1-2005, QB / T2603-2007, GB / T13217.2-2009, GB / T18724-2008 / ISO2836:20...
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