CN104078094A - Nanometer titanium powder low-temperature conductive silver paste and preparing method thereof - Google Patents
Nanometer titanium powder low-temperature conductive silver paste and preparing method thereof Download PDFInfo
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- CN104078094A CN104078094A CN201410303310.0A CN201410303310A CN104078094A CN 104078094 A CN104078094 A CN 104078094A CN 201410303310 A CN201410303310 A CN 201410303310A CN 104078094 A CN104078094 A CN 104078094A
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Abstract
The invention discloses nanometer titanium powder low-temperature conductive silver paste. The paste is characterized by comprising, by weight, 40-50 parts of silver powder, 2-3 parts of tin powder, 1-3 parts of nickel powder, 1.2-2.3 parts of cerium dioxide, 2.1-3.2 parts of bismuth trioxide, 0.4-0.8 part of dibutyltin dilaurate, 3-5 parts of nanometer titanium powder, 1-3 parts of soybean salad oil, 2-3 parts of acrylic resin, 30-35 parts of additives and an appropriate amount of water. The nanometer titanium powder is modified and added into raw material, so that the prepared conductive silver paste has the advantages of being good in conductivity, high in adhesion and printing adaptability, excellent in solvent resistance and the like. Meanwhile, a little of tin powder and a little of nickel powder are added, so that silver resources are saved, production cost is reduced, and besides the conductivity of the conductive silver paste is improved.
Description
Technical field
The present invention relates to conductive silver paste field, be specifically related to a kind of nano titanium powder low-temperature conductive silver paste and preparation method thereof.
Background technology
Conductive silver paste refers to and is printed on conduction stock, make it the silver slurry that there is conduction current and get rid of accumulate static charge ability, be to be generally imprinted on the non-conductive stocks such as plastics, glass, pottery or cardboard, it is made up of electroconductive stuffing, binder, solvent and additive.The characteristic that need to possess when conductive silver paste has: conductivity (antistatic behaviour) is good, strong adhesion, printing adaptability are good and the excellent characteristic of solvent resistance, and existing conductive silver paste has a lot of shortcomings in the market, not only contain lead, cadmium etc. and poisonous, contaminated environment, and use conduction stock on time adhesive force low, soldering resistance is not good, sintering character is poor.
Summary of the invention
Object of the present invention is just to provide a kind of nano titanium powder low-temperature conductive silver paste and preparation method thereof, to overcome the deficiencies in the prior art.
The object of the present invention is achieved like this:
A kind of nano titanium powder low-temperature conductive silver paste, it is characterized in that, made by the raw material of following weight portion: silver powder 40-50, glass putty 2-3, nickel powder 1-3, ceria 1.2-2.3, bismuth oxide 2.1-3.2, dibutyl tin laurate 0.4-0.8, nano titanium powder 3-5, soybean salad oil 1-3, acrylic resin 2-3, auxiliary agent 30-35, suitable quantity of water.
Described auxiliary agent is made up of following raw materials in part by weight: bismuth oxide 2-3, boron oxide 3-4, ethyl cellulose 0.8-1.4, lauryl sodium sulfate 0.3-0.4, repefral 0.2-0.4, lecithin 0.3-0.5, polysiloxanes 0.2-0.3, terpinol 20-25, its preparation method is bismuth oxide and boron oxide to be put into calciner at 520-610 DEG C, calcine 1-2 hour, taking-up is cooled to room temperature, adds ethyl cellulose to grind 20-40 minute; Repefral, terpinol are stirred and evenly mixed, at 140-190 DEG C, react 2-3 hour, be cooled to 80-100 DEG C, add lecithin, polysiloxanes, lauryl sodium sulfate, keep temperature to stir 3-4 hour; Above each product is mixed, grind and make 300-400 order slurry and get final product for 2-4 hour.
The preparation method of described a kind of nano titanium powder low-temperature conductive silver paste, is characterized in that comprising the following steps:
(1) get nano titanium powder, ceria and send in calciner sintering 1-2 hour at 540-610 DEG C, take out and be cooled to room temperature, the acetum of putting into 8-11% soaks 3-6 hour, take out, use clear water cyclic washing, filtering drying, sprays vaporific soybean salad oil and mixes;
(2) get acrylic resin, dibutyl tin laurate and put into reactor and be heated to 55-75 DEG C and stir and evenly mix, add bismuth oxide, insulated and stirred 30-50 minute, is cooled to grinding at room temperature pulping;
(3) step (1), (2) reaction mass and other leftover materials are mixed, be warming up to 100-120 DEG C, stirring reaction 1-2 hour, cooling, grinding to form particle diameter is 10-20 μ m slurry grain, to obtain final product.
The present invention has following beneficial effect: the present invention adds in raw material after modifying nano titanium powder is processed, the conductive silver paste making has that conductivity is good, tack is strong, printing adaptability is good and the advantage such as solvent resistance is excellent, simultaneously the present invention also added a small amount of glass putty, nickel powder, not only saved silver-colored resource and reduced production cost and also improved the electric conductivity of conductive silver paste.
Embodiment
Described a kind of nano titanium powder low-temperature conductive silver paste, it is characterized in that, made by the raw material of following weight portion: silver powder 40, glass putty 2, nickel powder 3, ceria 1.4, bismuth oxide 2.7, dibutyl tin laurate 0.4, nano titanium powder 3, soybean salad oil 1, acrylic resin 3, auxiliary agent 30, suitable quantity of water.
Described auxiliary agent is made up of following raw materials in part by weight: bismuth oxide 2, boron oxide 3, ethyl cellulose 0.9, lauryl sodium sulfate 0.3, repefral 0.4, lecithin 0.3, polysiloxanes 0.3, terpinol 24, its preparation method is bismuth oxide and boron oxide to be put into calciner at 520-610 DEG C, calcine 1-2 hour, taking-up is cooled to room temperature, adds ethyl cellulose to grind 20-40 minute; Repefral, terpinol are stirred and evenly mixed, at 140-190 DEG C, react 2-3 hour, be cooled to 80-100 DEG C, add lecithin, polysiloxanes, lauryl sodium sulfate, keep temperature to stir 3-4 hour; Above each product is mixed, grind and make 300-400 order slurry and get final product for 2-4 hour.
Manufacture method comprises the following steps:
(1) get nano titanium powder, ceria and send in calciner sintering 1-2 hour at 540-610 DEG C, take out and be cooled to room temperature, the acetum of putting into 8-11% soaks 3-6 hour, take out, use clear water cyclic washing, filtering drying, sprays vaporific soybean salad oil and mixes;
(2) get acrylic resin, dibutyl tin laurate and put into reactor and be heated to 55-75 DEG C and stir and evenly mix, add bismuth oxide, insulated and stirred 30-50 minute, is cooled to grinding at room temperature pulping;
(3) step (1), (2) reaction mass and other leftover materials are mixed, be warming up to 100-120 DEG C, stirring reaction 1-2 hour, cooling, grinding to form particle diameter is 10-20 μ m slurry grain, to obtain final product.
The technical indicator of processing the conductive silver paste obtaining by above-described embodiment is as follows:
(1) viscosity: 50-100PaS(Brookfield, 10RPM);
(2) adhesive force: > 10N/mm
2;
(3) sheet resistance: < 5m Ω/c;
(4) solderability excellent, burnt in a heap easily separated, printing adaptability good and solvent resistance is excellent.
Claims (2)
1. a nano titanium powder low-temperature conductive silver paste, it is characterized in that, made by the raw material of following weight portion: silver powder 40-50, glass putty 2-3, nickel powder 1-3, ceria 1.2-2.3, bismuth oxide 2.1-3.2, dibutyl tin laurate 0.4-0.8, nano titanium powder 3-5, soybean salad oil 1-3, acrylic resin 2-3, auxiliary agent 30-35, suitable quantity of water; Described auxiliary agent is made up of following raw materials in part by weight: bismuth oxide 2-3, boron oxide 3-4, ethyl cellulose 0.8-1.4, lauryl sodium sulfate 0.3-0.4, repefral 0.2-0.4, lecithin 0.3-0.5, polysiloxanes 0.2-0.3, terpinol 20-25, its preparation method is bismuth oxide and boron oxide to be put into calciner at 520-610 DEG C, calcine 1-2 hour, taking-up is cooled to room temperature, adds ethyl cellulose to grind 20-40 minute; Repefral, terpinol are stirred and evenly mixed, at 140-190 DEG C, react 2-3 hour, be cooled to 80-100 DEG C, add lecithin, polysiloxanes, lauryl sodium sulfate, keep temperature to stir 3-4 hour; Above each product is mixed, grind and make 300-400 order slurry and get final product for 2-4 hour.
2. the manufacture method of a kind of nano titanium powder low-temperature conductive silver paste according to claim 1, is characterized in that comprising the following steps:
(1) get nano titanium powder, ceria and send in calciner sintering 1-2 hour at 540-610 DEG C, take out and be cooled to room temperature, the acetum of putting into 8-11% soaks 3-6 hour, take out, use clear water cyclic washing, filtering drying, sprays vaporific soybean salad oil and mixes;
(2) get acrylic resin, dibutyl tin laurate and put into reactor and be heated to 55-75 DEG C and stir and evenly mix, add bismuth oxide, insulated and stirred 30-50 minute, is cooled to grinding at room temperature pulping;
(3) step (1), (2) reaction mass and other leftover materials are mixed, be warming up to 100-120 DEG C, stirring reaction 1-2 hour, cooling, grinding to form particle diameter is 10-20 μ m slurry grain, to obtain final product.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410303310.0A CN104078094A (en) | 2014-06-30 | 2014-06-30 | Nanometer titanium powder low-temperature conductive silver paste and preparing method thereof |
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| CN201410303310.0A CN104078094A (en) | 2014-06-30 | 2014-06-30 | Nanometer titanium powder low-temperature conductive silver paste and preparing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104376892A (en) * | 2014-10-17 | 2015-02-25 | 阜阳市节源照明电器有限责任公司 | Aluminum power/nickel powder composite conductive sliver paste and manufacturing method thereof |
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| EP0223464A2 (en) * | 1985-11-06 | 1987-05-27 | Minnesota Mining And Manufacturing Company | Anisotropically conductive polymeric matrix |
| JPH07302510A (en) * | 1994-05-10 | 1995-11-14 | Sumitomo Metal Mining Co Ltd | Conductive paste composition |
| CN102280161A (en) * | 2011-08-18 | 2011-12-14 | 陈晓东 | Conductive paste for positive electrode of crystal silicon solar cell and preparation method of conductive paste |
| CN102664055A (en) * | 2012-04-11 | 2012-09-12 | 深圳市大富科技股份有限公司 | Conductive silver paste, method for preparing same and surface metallization method for microwave dielectric ceramics |
| CN102751000A (en) * | 2012-06-16 | 2012-10-24 | 华东微电子技术研究所合肥圣达实业公司 | Lead-free and cadmium-free electrode silver slurry for piezoelectric ceramics and preparation method thereof |
-
2014
- 2014-06-30 CN CN201410303310.0A patent/CN104078094A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0223464A2 (en) * | 1985-11-06 | 1987-05-27 | Minnesota Mining And Manufacturing Company | Anisotropically conductive polymeric matrix |
| JPH07302510A (en) * | 1994-05-10 | 1995-11-14 | Sumitomo Metal Mining Co Ltd | Conductive paste composition |
| CN102280161A (en) * | 2011-08-18 | 2011-12-14 | 陈晓东 | Conductive paste for positive electrode of crystal silicon solar cell and preparation method of conductive paste |
| CN102664055A (en) * | 2012-04-11 | 2012-09-12 | 深圳市大富科技股份有限公司 | Conductive silver paste, method for preparing same and surface metallization method for microwave dielectric ceramics |
| CN102751000A (en) * | 2012-06-16 | 2012-10-24 | 华东微电子技术研究所合肥圣达实业公司 | Lead-free and cadmium-free electrode silver slurry for piezoelectric ceramics and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104376892A (en) * | 2014-10-17 | 2015-02-25 | 阜阳市节源照明电器有限责任公司 | Aluminum power/nickel powder composite conductive sliver paste and manufacturing method thereof |
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