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Composite conductive ink-jet ink and preparation method thereof

A technology of composite conductive and inkjet ink, which is applied in the field of ink, can solve problems such as leakage of nano-silver particles, affect printing effect, and discontinuous conductive layer of paper, so as to achieve easy nozzle blockage, increased formation, and good inkjet continuity Effect

Active Publication Date: 2016-03-23
山东中康激宏科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is mentioned in relevant documents and patents that there are also some shortcomings in the application of nano-silver conductive ink. For some papers with large apertures or pores, due to the smaller particles of nano-silver, there will be phenomena such as nano-silver particles leaking from the pores. Cause discontinuity and defects in the conductive layer of the paper, affecting the final printing effect

Method used

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  • Composite conductive ink-jet ink and preparation method thereof

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preparation example Construction

[0037] The preparation method of conductive inkjet ink among the present invention, comprises the following steps:

[0038] Dissolve the resin linking agent, dispersant, surfactant and other additives in the solvent according to the ratio, stir evenly, then add surface-modified nano-silver and graphite, and stir at high speed for 60-240min to form a pre-dispersion. Then transfer the pre-dispersed liquid to a ball mill, ball mill for 2-8 hours, filter the obtained dispersed liquid with a 200-600 nm microporous filter membrane, fill and pack to obtain a composite conductive inkjet ink.

Embodiment 1

[0041] Nano silver: 8g, graphite: 16g, SpredoxD-260: 3g, acrylic resin S-70: 5g, Span 80: 2g, glycerol: 2g, polyether modified silicone defoamer: 0.5g, dioxide Silica sol: 1g, water: 62.5g

[0042] Dissolve in the solvent according to the ratio, stir evenly, then add surface-modified nano-silver and graphite, and stir at high speed for 60 minutes to form a pre-dispersion. Then the pre-dispersed liquid is transferred to the ball mill, ball milled for 4h, and the obtained dispersion liquid is filtered with a 500nm microporous membrane, filled and packaged to obtain a composite conductive inkjet ink. The surface tension of the ink obtained is 49.25mN / m, and the viscosity is 10mpa.s, the conductivity is 8.4μΩ·cm.

Embodiment 2

[0044] Nano silver: 10g, graphite: 10g, SpredoxD-260: 5g, acrylic resin S-70: 5g, Span 80: 2g, glycerol: 2g, polyether modified silicone defoamer: 0.5g, dioxide Silica sol: 1g, water: 64.5g

[0045] Dissolve in the solvent according to the ratio, stir evenly, then add surface-modified nano-silver and graphite, and stir at high speed for 60 minutes to form a pre-dispersion. Then the pre-dispersed liquid is transferred to the ball mill, ball milled for 4h, and the obtained dispersion liquid is filtered with a 500nm microporous membrane, filled and packaged to obtain a composite conductive inkjet ink, the surface tension of the ink is 45.25mN / m, and the viscosity is 9.8mpa.s, sheet resistance is 6.2μΩ·cm.

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Abstract

The invention relates to a composite conductive ink-jet ink. A mixture of nano-silver and graphite serves as the conductive component of the composite conductive ink-jet ink. The ink is prepared from, by mass, 10-20% of the conductive component, 1-5% of a dispersing agent, 1-15% of a resin joining agent, 1-4% of a surface active agent, 1-10% of other auxiliaries and 50-80% of a solvent. The invention further relates to a preparation method of the composite conductive ink-jet ink. According to the composite conductive ink-jet ink and the preparation method, nano-silver particles with a nano-scale particle size and graphite of a laminated structure are composited, and graphite of the laminated structure is used as a carrier of nano-silver, so that the degree of leaking from pores of coarse paper of nano-silver particles is reduced, the formation of a conductive path is promoted, and the conductivity of a conductive layer is improved. The composite conductive ink-jet ink is good in dispersity, high in stability, not likely to block a jet and good in ink jet continuity, and the formed conductive layer is good in film forming property and suitable for printing various types of paper.

Description

technical field [0001] The invention belongs to the field of ink, and in particular relates to a composite conductive inkjet ink and a preparation method thereof. Background technique [0002] In recent years, with the rapid development of printing technology and its supporting processes, conductive ink, as the core material of printed electronics technology, has shown great commercial application value in many aspects and fields, which has attracted widespread attention. [0003] Conductive inks can be divided into three categories according to their different conductive components: one is inorganic conductive ink, the conductive components include commonly used metals such as gold, silver, copper, nickel, etc., non-metals such as carbon materials, etc.; The conductive component is an organic conductive ink, such as polyaniline, polypyrrole, polyparaphenylene, and poly-3,4-ethylenedioxythiophene; the third is a composite conductive ink, including inorganic conductive compon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/38C09D11/52
Inventor 郑冬琛
Owner 山东中康激宏科技开发有限公司
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