Unlock instant, AI-driven research and patent intelligence for your innovation.

Conductive ink and preparation method thereof

A conductive ink, mass percentage technology, applied in the direction of ink, household utensils, applications, etc., can solve the problems that high-end fields cannot be applied, high-conductivity fields cannot be applied, and slurry square resistance increases, so as to achieve good compactness and good conductivity , Reduce the effect of slurry square resistance

Inactive Publication Date: 2012-05-23
IRICO
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing carbon silver paste, because the resistivity of carbon powder is much higher than that of silver powder, the square resistance of the paste after mixing is greatly increased, and it cannot be applied in some high-end fields, especially those requiring high conductivity like membrane switches and notebook keyboards. field cannot be applied

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Conductive ink and preparation method thereof
  • Conductive ink and preparation method thereof
  • Conductive ink and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0028] The preparation method of above-mentioned conductive ink, comprises the following steps:

[0029] (1) Organic carrier A: weighing 65-75% of diethyl adipate or ethylene glycol butyl ether acetate and 25-35% of polyester resin or acrylic acid One of the resin-like, high-speed stirring in the water bath, so that the resin is completely dissolved in the solvent;

[0030] (2) Organic carrier B: Weigh one of 62-77% 1,4-butyrolactone or terpineol and 22-38% vinyl acetate resin in a water bath at high speed Stir to completely dissolve the resin in the solvent, add a coupling agent with a mass percentage of 0.05%-1%, and make it after high-speed stirring;

[0031] (3) Preparation of carbon silver paste:

[0032] Weigh the proportioning amount of carbon powder and organic carrier A, mix thoroughly, and then use a three-roll mill to grind and disperse to form a uniform mixed phase to obtain carbon slurry;

[0033] Weigh a piece of silver, nickel powder and organic carrier B, mi...

Embodiment 1

[0043] Organic carrier A:

[0044] Weigh 101.35 grams of diethyl adipate and 43.5 grams of polyester resin, place them in a water bath at 70-100°C, and stir at high speed for 2 hours to completely dissolve the polyester resin in diethyl adipate.

[0045] Organic carrier B:

[0046] Weigh 202.70 grams of 1,4-butyrolactone and 87.0 grams of chloroacetic resin, mix 1,4-butyrolactone and chloroacetic resin, and place in a water bath at 70-100°C, stir at a high speed for 2 hours to make Vinyl resin is completely soluble in 1,4-butyrolactone. Add 0.15 g of silane coupling agent KH-551 and stir at high speed for 20 minutes.

[0047] Weigh the material according to the following ratios

[0048]

[0049] The carbon powder and the organic carrier A are weighed and mixed thoroughly, and then the three-roll mill is used to grind and disperse 3 to 5 times to form a uniform mixed phase to obtain a carbon slurry.

[0050] The silver flakes, nickel powder, and organic vehicle B were we...

Embodiment 2

[0052] Organic carrier A:

[0053] Weigh 101.35 grams of ethylene glycol butyl ether acetate and 43.5 grams of polyester resin, place them in a water bath at 70-100 ° C, and stir at high speed for 2 hours to completely dissolve the polyester resin in ethylene glycol butyl ether acetate .

[0054] Organic carrier B:

[0055] Weigh 202.70 grams of 1,4-butyrolactone and 87.0 grams of chloroacetic resin, mix 1,4-butyrolactone and chloroacetic resin, and place in a water bath at 70-100°C, stir at a high speed for 2 hours to make Vinyl resin is completely soluble in 1,4-butyrolactone. Add 0.15 g of silane coupling agent KH-551 and stir at high speed for 20 minutes.

[0056] Weigh the material according to the following ratios

[0057]

[0058] The carbon powder and the organic carrier A are weighed and mixed thoroughly, and then the three-roll mill is used to grind and disperse 3 to 5 times to form a uniform mixed phase to obtain a carbon slurry.

[0059] The silver flakes, ni...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses conductive ink and a preparation method thereof. The conductive ink consists of the following components in percentage by mass: 1 to 2 percent of carbon powder, 3 to 5 percent of organic carrier A, 50 to 65 percent of sheet silver, 0.5 to 1 percent of nickel powder, 30 to 45 percent of organic carrier B, and 0.1 to 0.2 percent of dispersant, wherein the organic carrier A is formed by completely dissolving diethyl adipate or 2-butoxyethyl acetate with mass percentage of between 65 and 75 percent with polyester resins or acrylic resins with mass percentage of between 25 and 35 percent; and the organic carrier B is formed by completely dissolving 1,4-butyrolactone or terpineol with mass percentage of between 62 and 77 percent with a chloride-vinyl acetate resin with mass percentage of between 22 and 38 percent, and then adding a coupling agent with mass percentage of between 0.05 and 1 percent into the mixture. Compared with the prior carbon-silver paste, the carbon powder of the conductive ink is combined with paste better, carbon-silver paste is more compact, and the conductance is better when the compactness is better.

Description

Technical field: [0001] The invention belongs to the technical field of electronic materials, and specifically refers to an excellent conductive carbon-silver conductive ink suitable for use on flexible circuits and a preparation method thereof. Background technique: [0002] The conductive ink used on flexible circuits is made of ultra-fine silver powder and low-temperature curing thermoplastic resin. It can be used in PET and PC. It is suitable for screen printing and has good printability, conductivity and oxidation resistance. , hardness, expansion performance and strong adhesion, it is a functional material for the manufacture of electronic terminal products. It can be used in membrane switches, flexible printed circuits, and has been widely used in computer keyboards, notebook keyboards and home appliances such as microwave ovens and washing machines. Its performance is far superior to traditional circuit equipment, and it has the characteristics of environmental prot...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/10C09D11/52
Inventor 姚函亮
Owner IRICO