Conductive ink for mobile phone antenna

A conductive ink and mobile phone antenna technology, applied in the field of ink, can solve the problems of unguaranteed substrate adhesion, poor ink storage stability, and unstable resistance, and achieve excellent storage stability, no delamination, and small resistance changes.

Active Publication Date: 2015-08-19
苏州昭奇凯虹精细化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current conductive ink exists under high temperature and high humidity conditions, and the resistance is unstable
And now as the printed conductive lines are getting thinner and thinner, the resistance is getting bigger and bigger, and there may even be problems such as poor bonding, disconnection, and unguaranteed adhesion to the substrate.
In addition, some existing inks have poor storage stability, and even solidify and delaminate in a short period of time.

Method used

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  • Conductive ink for mobile phone antenna

Examples

Experimental program
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Effect test

Embodiment 1

[0026] The present embodiment provides a kind of conductive ink for mobile phone antenna, based on the total weight of the conductive ink, it is formed by mixing the following components: thermoplastic hydroxyl polyurethane epoxy resin, 10%; silver powder, 60%; cyclohexanone , 22%; dispersant (alkanol ammonium salt of block copolymer of acidic groups), 1.5%; polyether modified silicone defoamer, 1.5%; thixotropic agent (fumed silica), 1 %; Silane coupling agent, 4%.

Embodiment 2

[0028] The present embodiment provides a kind of conductive ink for mobile phone antenna, based on the total weight of the conductive ink, it is mixed with the following components: thermoplastic hydroxyl polyurethane modified bisphenol A epoxy resin, 20%; silver powder, 55%; isophorone, 19%; dispersant (alkanol ammonium salt of block copolymer of acidic groups), 1%; polyether modified silicone defoamer, 1%; thixotropic agent ( fumed silica), 1%; silane coupling agent, 3%.

Embodiment 3

[0030] The present embodiment provides a kind of conductive ink for mobile phone antenna, based on the total weight of the conductive ink, it is mixed with the following components: thermoplastic hydroxyl polyurethane modified bisphenol A epoxy resin, 10%; silver powder, 70%; Ethylene glycol ether acetate, 10%; Dispersant (alkanol ammonium salt of block copolymer of acidic groups), 2%; Polyether modified silicone defoamer, 2%; Thixotropic agent (fumed silica), 1%; silane coupling agent, 5%.

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Abstract

The invention provides conductive ink for a mobile phone antenna. Based on the total weight of the conductive ink as the reference, the conductive ink is mainly composed of the following ingredients, by weight, 10-20% of modified epoxy resin, 50-70% of silver powder, 10-30% of a solvent, 0.5-2% of a dispersant, 0.5-2% of an antifoaming agent, 0.5-1% of a thixotropic agent and 2-5% of a coupling agent. Resistance value of the conductive ink provided by the invention is low and stable. The conductive ink is environmentally friendly, is safe to use, has excellent adhesive force, chemical resistance and stability, and has a good application prospect.

Description

technical field [0001] The invention relates to an ink, more particularly to a conductive ink for a mobile phone antenna. Background technique [0002] As an important material for printed circuits, conductive ink plays an irreplaceable role in 3C product printing. For example, it is used to conduct current when the antenna of a mobile phone receives a signal, and to eliminate the accumulated static charge. However, the current conductive ink exists under high temperature and high humidity conditions, and its resistance is unstable. And now, as the printed conductive lines become thinner and thinner, the resistance is also increasing, and there may even be problems such as poor bonding, disconnection, and unguaranteed adhesion to the substrate. In addition, some existing inks have poor storage stability, and even solidify and delaminate in a short period of time. Therefore, there is an urgent need for conductive inks with good performance and stable resistance. Contents...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/52
Inventor 邵晓光沈朝阳李其勇周彦伯
Owner 苏州昭奇凯虹精细化工有限公司
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