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Shielding electrically conductive printing ink and preparation method thereof

A conductive ink, thermosetting technology, applied in the direction of ink, household utensils, applications, etc., can solve the problems that metal powders do not contact each other, have no electromagnetic wave shielding performance, etc.

Inactive Publication Date: 2010-08-04
IRICO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Metal powders are not well in full contact with each other, so there is no high-performance electromagnetic wave shielding performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Epoxy resin 23%;

[0026] Diethyl adipate 2%;

[0027] Copper fiber 71%;

[0028] Copper powder 1.5%;

[0029] Diethylenetriamine 2%;

[0030] Antioxidant 264 0.5%.

[0031] Take by weighing the raw material epoxy resin of above-mentioned proportioning, diethyl adipate, copper fiber, copper powder fully mix, grind and disperse 3 times (one kilogram every time 3- 15 minutes) to form a uniform mixed phase; then add diethylenetriamine, antioxidant 264, grind and disperse 3 times with a three-roll mill (SDV 1300, Buhler, Switzerland) (one kilogram every time for 3-15 minutes) , so that it forms a uniform mixed phase, that is, conductive ink.

Embodiment 2

[0033] Epoxy resin 21%;

[0034] Ethylene glycol butyl ether acetate 2%;

[0035] Nickel fiber 73%;

[0036] Nickel powder 1.5%;

[0037] Diethylenetriamine 2%;

[0038] Antioxidant 264 0.5%.

[0039] Take epoxy resin, ethylene glycol butyl ether acetate, nickel fiber and nickel powder and fully mix, grind and disperse 4 times (one kilogram every time 3-15 minutes) with three-roll mill (SDV 1300, Buhler, Switzerland), Make it form a homogeneous mixed phase; add diethylenetriamine, antioxidant 264 again, grind and disperse 4 times with a three-roll mill (SDV 1300, Buhler, Switzerland) (one kilogram every time 3-15 minutes), make it form A uniform mixed phase is the conductive ink.

Embodiment 3

[0041] Epoxy resin 20%;

[0042] 1,4 butyrolactone 2%;

[0043] Silver fiber 75%;

[0044] Silver powder 1%;

[0045] Diethylenetriamine 2%.

[0046] Take epoxy resin, 1,4 butyrolactone, silver fiber and silver powder and fully mix, grind and disperse 2 times (one kilogram every time 3-15 minutes) with three-roll grinder (SDV 1300, Swiss Buhler), make It forms a uniform mixed phase; then add diethylenetriamine, grind and disperse 2 times (one kilogram every 3-15 minutes) with a three-roll mill (SDV 1300, Buhler, Switzerland) to form a uniform mixed phase, That is, the conductive ink is obtained.

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Abstract

The invention relates to a shielding electrically conductive printing ink and a preparation method thereof. The shielding electrically conductive printing ink is prepared by the following raw materials in percentage by mass: 20-25% of thermosetting resin, 1-6% of solvent, 70-75% of metal fibre, 1-5% of metal powder, 2-5% of curing agent and 0-1% of antioxidant. The preparation method of the electrically conductive printing ink comprises: after weighting, fully mixing the thermosetting resin, solvent, metal fibre and metal powder; grinding and dispersing for 2-5 times by a three-roll grinder to form an even mixed phase; then, adding the curing agent and antioxidant; and grinding and dispersing for 2-5 times by the three-roll grinder to form the even mixed phase so as to obtain the electrically conductive printing ink. The electrically conductive printing ink has the characteristics of high electrical conductivity, high electromagnetic shielding efficiency, simple spraying operation and the like.

Description

technical field [0001] The invention relates to a conductive ink, in particular to a conductive ink with good conductivity and electromagnetic wave shielding performance and a preparation method thereof. Background technique [0002] With the rapid development of modern science and technology, high-voltage power transmission and transformation lines, computer networks, mobile phones, audio-visual equipment, microwave ovens, etc. have brought great convenience to people's work and life, but also brought a new type of Pollution source - electromagnetic radiation. Although electromagnetic radiation cannot be seen or touched, it is affecting human health, production and life. In recent years, with the development of the electronic industry and the increase of electronic products, electronic radiation pollution and electronic waste have an increasing impact on the environment. [0003] Shielding conductive ink is a kind of paint that can be used for spraying. After drying to fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/10C09D11/52
Inventor 姚函亮
Owner IRICO