Ink jet printing method for preparing metal oxide functional film
An oxide film, inkjet printing technology, applied in the direction of copy/marking method, printing, ink, etc., to achieve the effect of wide application range, clear boundary and high precision
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Embodiment 1
[0013] Preparation of iron oxide film:
[0014] Operate as follows: 1) get 10g metal compound FeCl 3 As a raw material, it is dissolved in 200ml deionized water, placed in a reactor and hydrolyzed at a certain temperature to form iron oxide nanoparticle precipitation; the temperature of the reactor in this embodiment is 80 ° C, and the weight ratio of the raw material to deionized water is 10:200; 2) Add 100ml of deionized water after several times of centrifugal washing with a centrifuge, and add 1g of dispersant polyvinyl alcohol under strong stirring, and the amount added is 1% of the weight of deionized water to control the viscosity of the ink to less than 50mPa s (room temperature), surface tension is 30mNm -1 Prepare iron oxide inkjet ink; 3) inject the ink into the ink cartridge, and deposit it on the alumina ceramic substrate by conventional inkjet printing technology; 4) heat-treat the film deposited on the substrate at 400°C, Form an iron oxide film; the raw mater...
Embodiment 2
[0016] Preparation of tin oxide thin films:
[0017] Operate as follows: 1) get 10g metal compound SnCl 2 As a raw material, it is dissolved in 100ml of organic solvent absolute ethanol, and placed in a reflux device. The reflux temperature of this embodiment is 80 ° C, and the reflux time is 36 hours; during the reflux process, it can be seen that a large amount of smoke is produced, which is HCl; Add dehydrated alcohol to the tin alcoholate formed by the reaction to make the volume 100ml; the weight ratio of the raw material and the organic solvent is 10: 100; 2) add 0.5g of surfactant cetyltrimethylammonium bromide, Add-on is 0.5% of organic solvent weight, is 40mPa·s (room temperature) and surface tension to control ink's viscosity to be 40mNm-1, is made into metal tin oxide ink-jet ink; 3) described ink is injected in the ink cartridge, It is deposited on the aluminum oxide ceramic substrate by conventional inkjet printing technology; 4) the film deposited on the substra...
Embodiment 3
[0019] Preparation of ZnO thin film:
[0020] Operate as follows: 1) take 15g metal compound zinc acetate as raw material, dissolve it in 100ml deionized water, the weight ratio of the raw material and water is 15: 100; 2) add dispersant sodium lauryl sulfate 0.3 g, the addition is 0.3% of the water weight, so that the viscosity of the ink is 30mPa s (room temperature), the surface tension is 30mNm-1, and it is made into zinc oxide ink; 3) the ink is injected into the ink cartridge, and the conventional Inkjet printing technology sprays and deposits on the aluminum oxide ceramic substrate according to a predetermined pattern; 4) The film layer deposited on the substrate is subjected to a heat treatment at 550° C. to react to form a zinc oxide film.
[0021] The present invention can also use anionic surfactants such as sodium stearate, sodium dodecylbenzenesulfonate, nonionic surfactants such as dodecyldiethanolamine, etc. as dispersants or polymers.
[0022] Various metal ox...
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