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Jet conductive ink

A technology of conductive ink and conductive particles, which is applied in ink, household appliances, applications, etc., can solve the problems of high solid content of metal nanoparticles and no printing effect data, and achieve the effect of low cost

Inactive Publication Date: 2012-06-20
BEIJING INSTITUTE OF GRAPHIC COMMUNICATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this invention is that the solid content of metal nanoparticles is still high, and no specific printing effect data is provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Embodiment 1 prepares nano-silver emulsion ink-jet conductive ink

[0048] In the specific implementation of the present invention, the particle size is 20-400nm prepared by the method of reference "Preparation and Spectroscopic Analysis of Nano-Silver Conductive Film" (Mo Lixin, Li Luhai, Li Yaling, etc., Spectroscopy and Spectral Analysis 2007.12, P2502). Range of silver particle suspension, choose polyvinylpyrrolidone (PVP) as the dispersion stabilizer.

[0049]Get silver nitrate solution and hydrazine hydrate solution that equal volume concentration is 0.25mol / L the same, get PVP / silver nitrate (mass ratio)=1.75, make ink-jet ink nano-silver solid content be 1.2%, size be 50~100nm;

[0050] In the obtained nano-silver conductive particle emulsion, add a moisturizing agent, a pH regulator, a surfactant, and a binder according to parts by weight, stir for 30 minutes, and mix evenly; Membrane filtration, to obtain the inkjet conductive ink, its composition is shown in...

Embodiment 2

[0052] Embodiment 2 prepares nano-silver emulsion ink-jet conductive ink

[0053] Get the silver nitrate solution and the hydrazine hydrate solution that are the same volume concentration of 0.75mol / L, get PVP / silver nitrate (mass ratio)=2, make the nano-silver solid content of the inkjet ink be 3.6%. The size is 70-120nm. The preparation steps are the same as in Example 1, and the composition of the obtained inkjet conductive ink is shown in Table 3.

Embodiment 3

[0054] Embodiment 3 prepares nano-silver emulsion ink-jet conductive ink

[0055] Get the silver nitrate solution and the hydrazine hydrate solution that are the same volume concentration of 2.25mol / L, get PVP / silver nitrate (mass ratio)=4, make the nano-silver solid content of the inkjet ink be 10.9%. The size is 100-150nm; the preparation steps are the same as in Example 1, and the composition of the obtained inkjet conductive ink is shown in Table 3.

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Abstract

The invention relates to jet conductive ink, which is film printing electronic paste and is suitable for ink jet printing, and belongs to the field of printed electronics. The jet conductive ink comprises the following components in portion by weight: 1 to 29 portions of conductive particles, 60 to 85 portions of solvent, 1 to 5 portions of humectant, 1 to 5 portions of pH regulator, 1 to 5 portions of surfactant, and 1 to 3 portions of bonding material. The cost of a method for the jet conductive ink is low, and the conductive silver in the conductive paste is reduced to less than 29 portionsby weight; the method has a mild post treatment process, and the post treatment temperature of a printed product is reduced to about 100 DEG C by using nano silver to replace micro silver; and through an ink jet printing mode as required, the thickness of an obtained conductive film is about 1 micron, and the resistance reaches about 1 ohm.

Description

technical field [0001] The invention relates to an ink-jet conductive ink. The ink-jet conductive ink of the present invention contains particle conductive material, and its viscosity, pH value, surface tension and other properties are all suitable for ink-jet printing. The conductive ink belongs to film printed electronic paste and is applied in the field of printed electronics. Background technique [0002] With the advancement of digital printing technology, inkjet printing in pressureless printing has developed rapidly, and its application fields are expanding day by day. At the same time, the development of printed electronic materials and technology also provides opportunities for the combination of printed circuit board (PCB) preparation, flexible display electrodes, electromagnetic shielding materials and printing technology. In order to reduce the cost of conductive lines and even radio frequency (RFID) antenna transmitting antennas, to a certain extent solve the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/10C09D11/52
Inventor 李路海方一辛智青
Owner BEIJING INSTITUTE OF GRAPHIC COMMUNICATION
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