CN108899108A - A kind of low temperature touch screen printing silver paste and preparation method thereof - Google Patents
A kind of low temperature touch screen printing silver paste and preparation method thereof Download PDFInfo
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- CN108899108A CN108899108A CN201810573803.4A CN201810573803A CN108899108A CN 108899108 A CN108899108 A CN 108899108A CN 201810573803 A CN201810573803 A CN 201810573803A CN 108899108 A CN108899108 A CN 108899108A
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- gap
- rolling
- touch screen
- low temperature
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/20—Conductive material dispersed in non-conductive organic material
- H01B1/22—Conductive material dispersed in non-conductive organic material the conductive material comprising metals or alloys
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
Abstract
A kind of low temperature touch screen printing silver paste and preparation method thereof, the preparation of first organic carrier, then in terms of mass fraction, micro silver powder A：30~60, micro silver powder B：10~30, nickel powder：1~3, additive：0.1~1, diluent：1~10, organic bond：5~25, chelating agent：0.1~0.5, by mixed material on three-roller rolling, points of three conditions carry out rollings, so that mixture is in uniform paste, to print.The present invention has the characteristics that improve the service performance of slurry.
Description
Technical field
The present invention relates to technical field of electronic materials, in particular to a kind of low temperature touch screen printing silver paste and its preparation side
Method.
Background technique
With the fast development of smart phone, computor-keyboard, printed wire, possess excellent electric conductivity and printing performance
Slurry be widely used, and the market share gradually increases.During Pearl River Delta touch screen manufactory updates, low temperature
Type touch screen usage of sizing agent is huge, and price has a fairly good profit margin also above ordinary electronic slurry, existing market it is main
Occupant is South Korea and Japan.
Universal low temperature touch screen prints silver paste currently on the market, using 18~35kcps of viscosity (100rpm, 25
DEG C), print 100~120 μm of line width.
The problems such as inventing a kind of 80 ± 10kcps of high viscosity silver paste, solving printing performance and 80 ± 5 μm of line width or so, mentions
The service performance of high slurry and a silver paste material developed.This silver paste drying temperature between 130-150 DEG C, instead of into
The use of mouth silver paste, has filled up domestic blank.
Summary of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a kind of low temperature touch screens to print silver paste
Material and preparation method thereof, invents a kind of 80 ± 10kcps of high viscosity silver paste, improves the service performance of slurry and develop a
Silver paste material.
To achieve the goals above, the technical solution adopted by the present invention is that：
A kind of low temperature touch screen printing silver paste, in terms of mass fraction, micro silver powder A：30~60, micro silver powder B：10~30,
Nickel powder：1~3, additive：0.1~1, diluent：1~10, organic bond：5~25, chelating agent：0.1~0.5.
The partial size of the micro silver powder A is 0.2~0.8 μm, and the granularity of micro silver powder B is 0.8~2.0 μm.
The organic bond is in terms of mass fraction, 10~25 parts of small molecule celluloses, 2~5 parts of saturated fatty acids,
0.5~2 part of organically-modified additive, 50~85 parts of organic solvent compositions.
Low temperature touch screen prints the preparation method of silver paste, includes the following steps：
Step 1：Organic bond preparation --- 10~25 parts of small molecule celluloses, 2~5 parts of saturated fatty acids, 0.5~2
The organically-modified additive of part, 50~85 parts of organic solvents compositions；First into glass reaction kettle added with solvent, temperature is controlled 75
~95 DEG C, certain mixing speed is given, various elements are then slowly added into, dissolves it sufficiently, dissolution time is 8~12h；
Step 2：The rolling of slurry --- micro silver powder A：30~60 parts, micro silver powder B：10~30 parts, nickel powder：1~3 part,
Additive：0.1~1 part, diluent：1~10 part, the obtained organic bond of step 1：5~25 parts, chelating agent：0.1~0.5
Part, mixing simultaneously rolls up to low temperature touch screen printing silver paste.
The organic solvent is certain several mixed liquor of ethylene glycol ether acetate, ethylene glycol ethyl ether etc..
The rolling condition is rolling on three-roller, and point three conditions carry out rolling：
1) control of three-roller pressure is in 20bar, and gap condition is gap 1. 1:15, gap 2. 1:30, gap 3. 1:10 Hes
Gap 4. 1:15, uniformly mixed material is added on three-roller and is premixed, time 15min；
2) control of three-roller pressure is in 10bar, and gap condition is gap 1. 1:15, gap 2. 1:30, gap 3. 1:10 Hes
Gap 4. 1:15, rolling 5 times；
3) control of three-roller pressure is in 20bar, gap condition gap 1. 0:55, gap 2. 1:05, gap 3. 0:55 and
Gap 4. 0:30, rolling 5 times；
4) for the control of three-roller pressure in 20bar, gap condition carries out rolling as follows, and rolling 8 times, gap 1. 0:35, gap
②0:30, gap 3. 0:15 and gap 4. 0:15；
The slurry form that rolling finishes is in light grey body of paste, is had preferable mobility, fineness≤2.5 μm, viscosity is
70±10kcps。
Beneficial effects of the present invention：
The present invention is to use 18~35kcps of viscosity (100rpm, 25 DEG C), printing in view of current touch screen printing silver paste
100~120 μm of line width the problems such as, invent a kind of high viscosity (80 ± 10kcps) printing silver paste, solve printing performance and line width
80 μm or so the problems such as, improve the service performance of slurry and a silver paste material developed.This silver paste drying temperature is in 130-
Between 150 DEG C, instead of the use of import silver paste, domestic blank is filled up, which has preferable levelability, good print
Swiped through net performance, color is deeper, and silver-colored face is more prominent than general slurry metallic luster after being made into electrode；Have after the printing of this slurry
Good line is high, and sheet resistance is smaller；There are thinner line width, good drying effect.
Specific embodiment
Below with reference to embodiment, invention is further described in detail.
Embodiment 1
Thoroughly various apparatus and equipment required for slurry are manufactured in cleaning.The balance precise for being 0.01g with accuracy
Various raw material：
1,60g micro silver powder A and 15g micro silver powder B is weighed, two kinds of silver powder are poured into blender and are stirred evenly；
2, organic bond 22g, nickel powder 1g, diluent 1g, additive 0.8g is weighed to be added jointly in blender and silver powder
30min is mixed again；
3, three-roll grinder is started, rolling is carried out as follows：
1) in 20bar, gap condition carries out the control of three-roller pressure as follows, and uniformly mixed material is added on three-roller
Premix, time 15min.
| Gap is 1. | Gap is 2. | Gap is 3. | Gap is 4. |
| 1:15 | 1:30 | 1:10 | 1:15 |
2) for the control of three-roller pressure in 10bar, gap condition carries out rolling as follows, and rolling 5 times.
| Gap is 1. | Gap is 2. | Gap is 3. | Gap is 4. |
| 1:15 | 1:30 | 1:10 | 1:15 |
It is gradually added into chelating agent 0.2g in third time roll milling process, is uniformly distributed it in the slurry.
3) for the control of three-roller pressure in 20bar, gap condition carries out rolling as follows, and rolling 5 times.
| Gap is 1. | Gap is 2. | Gap is 3. | Gap is 4. |
| 0:55 | 1:05 | 0:55 | 0:30 |
4) for the control of three-roller pressure in 20bar, gap condition carries out rolling as follows, and rolling 8 times.
| Gap is 1. | Gap is 2. | Gap is 3. | Gap is 4. |
| 0:35 | 0:30 | 0:15 | 0:15 |
The slurry form that rolling finishes is in light grey body of paste, is had preferable mobility, fineness≤2.5 μm, viscosity is
70±10kcps。
Embodiment 2
Thoroughly various apparatus and equipment required for slurry are manufactured in cleaning.The balance precise for being 0.01g with accuracy
Various raw material：
1,55g micro silver powder A and 20g micro silver powder B is weighed, two kinds of silver powder are poured into blender and are stirred evenly；
2, organic bond 22g, nickel powder 1g, diluent 1.2g, additive 0.6g is weighed to be added jointly in blender and silver
Powder mixes 30min again；
3, three-roll grinder is started, rolling is carried out as follows：
1) in 20bar, gap condition carries out the control of three-roller pressure as follows, and uniformly mixed material is added on three-roller
Premix, time 15min.
| Gap is 1. | Gap is 2. | Gap is 3. | Gap is 4. |
| 1:15 | 1:30 | 1:10 | 1:15 |
2) for the control of three-roller pressure in 10bar, gap condition carries out rolling as follows, and rolling 5 times.
| Gap is 1. | Gap is 2. | Gap is 3. | Gap is 4. |
| 1:15 | 1:30 | 1:10 | 1:15 |
It is gradually added into chelating agent 0.2g in third time roll milling process, is uniformly distributed it in the slurry.
3) for the control of three-roller pressure in 20bar, gap condition carries out rolling as follows, and rolling 5 times.
| Gap is 1. | Gap is 2. | Gap is 3. | Gap is 4. |
| 0:55 | 1:05 | 0:55 | 0:30 |
4) for the control of three-roller pressure in 20bar, gap condition carries out rolling as follows, and rolling 8 times.
| Gap is 1. | Gap is 2. | Gap is 3. | Gap is 4. |
| 0:35 | 0:30 | 0:15 | 0:15 |
The slurry form that rolling finishes is in light grey body of paste, is had preferable mobility, fineness≤2.5 μm, viscosity is
70±10kcps。
Embodiment 3
Thoroughly various apparatus and equipment required for slurry are manufactured in cleaning.The balance precise for being 0.01g with accuracy
Various raw material：
1,50g micro silver powder A and 25g micro silver powder B is weighed, two kinds of silver powder are poured into blender and are stirred evenly；
2, weigh organic bond 22g, nickel powder 1.1g, diluent 1.0g, additive 0.7g be added in blender jointly with
Silver powder mixes 30min again；
3, three-roll grinder is started, rolling is carried out as follows：
1) in 20bar, gap condition carries out the control of three-roller pressure as follows, and uniformly mixed material is added on three-roller
Premix, time 15min.
| Gap is 1. | Gap is 2. | Gap is 3. | Gap is 4. |
| 1:15 | 1:30 | 1:10 | 1:15 |
2) for the control of three-roller pressure in 10bar, gap condition carries out rolling as follows, and rolling 5 times.
| Gap is 1. | Gap is 2. | Gap is 3. | Gap is 4. |
| 1:15 | 1:30 | 1:10 | 1:15 |
It is gradually added into chelating agent 0.2g in third time roll milling process, is uniformly distributed it in the slurry.
3) for the control of three-roller pressure in 20bar, gap condition carries out rolling as follows, and rolling 5 times.
| Gap is 1. | Gap is 2. | Gap is 3. | Gap is 4. |
| 0:55 | 1:05 | 0:55 | 0:30 |
4) for the control of three-roller pressure in 20bar, gap condition carries out rolling as follows, and rolling 8 times.
| Gap is 1. | Gap is 2. | Gap is 3. | Gap is 4. |
| 0:35 | 0:30 | 0:15 | 0:15 |
The slurry form that rolling finishes is in light grey body of paste, is had preferable mobility, fineness≤2.5 μm, viscosity is
70±10kcps。
By the slurry prepared stablize for 24 hours after, cross 500 mesh screens after i.e. obtain the slurry, ito film printing on substrates simultaneously
It is dried at 130-150 DEG C, finally carries out performance detection.
The preparation of raw material and the preparation method of slurry
1, the preparation of organic carrier, 80 parts of lipid solvents of precise are added in 85 DEG C of glass reaction kettle, and are arranged
Mixing speed is 350rpm, and 15 parts of ethyl celluloses, 3.5 parts of saturated fatty acids and 1.5 parts of organically-modified additives are added, sealing
Reaction kettle, being sufficiently stirred makes mixture form clear gum mixed liquor, keeps the temperature 5~10h of aging, and cooled to room temperature is placed
Tested viscosity after for 24 hours, viscosity number require between 30~50kcps.
2, the preparation method of slurry：Precise a variety of materials, and be stirred for uniformly, embodiment is as follows：
List of ingredients
| Title | Percentage composition/% | Remarks |
| Micro silver powder A | 30~60 | |
| Micro silver powder B | 10~30 | |
| Nickel powder | 1~3 | |
| Additive | 0.1~1 | |
| Diluent | 1~10 | |
| Organic bond | 5~25 | |
| Chelating agent | 0.1~0.5 | |
| It is total | 100 |
3, by mixed material on three-roller rolling, points of three conditions carry out rollings, so that mixture is in uniform paste
Object, to print.
Claims (6)
1. a kind of low temperature touch screen prints silver paste, which is characterized in that in terms of mass fraction, micro silver powder A：30~60, micro silver powder
B：10~30, nickel powder：1~3, additive：0.1~1, diluent：1~10, organic bond：5~25, chelating agent：0.1~
0.5。
2. a kind of low temperature touch screen according to claim 1 prints silver paste, which is characterized in that the micro silver powder A's
Partial size is 0.2~0.8 μm, and the granularity of micro silver powder B is 0.8~2.0 μm.
3. a kind of low temperature touch screen according to claim 1 prints silver paste, which is characterized in that the organic bond
In terms of mass fraction, 10~25 parts of small molecule celluloses, 2~5 parts of saturated fatty acids, 0.5~2 part of organically-modified additive, 50
~85 parts of organic solvent compositions.
4. being included the following steps based on the preparation method of the printing silver paste of low temperature touch screen described in claim 1：
Step 1：Organic bond preparation --- 10~25 parts of small molecule celluloses, 2~5 parts of saturated fatty acids, 0.5~2 part has
Machine modified additive, 50~85 parts of organic solvent compositions；First into glass reaction kettle added with solvent, temperature is controlled 75~95
DEG C, certain mixing speed is given, various elements are then slowly added into, dissolves it sufficiently, dissolution time is 8~12h；
Step 2：The rolling of slurry --- micro silver powder A：30~60 parts, micro silver powder B：10~30 parts, nickel powder：1~3 part, addition
Agent：0.1~1 part, diluent：1~10 part, the obtained organic bond of step 1：5~25 parts, chelating agent：0.1~0.5 part,
Mixing simultaneously rolls up to low temperature touch screen printing silver paste.
5. a kind of preparation method of low temperature touch screen printing silver paste according to claim 4, which is characterized in that described
Organic solvent is certain several mixed liquor of ethylene glycol ether acetate, ethylene glycol ethyl ether etc..
6. a kind of preparation method of low temperature touch screen printing silver paste according to claim 4, which is characterized in that described
Rolling condition is rolling on three-roller, and point three conditions carry out rolling：
1) control of three-roller pressure is in 20bar, and gap condition is gap 1. 1:15, gap 2. 1:30, gap 3. 1:10 and gap
④1:15, uniformly mixed material is added on three-roller and is premixed, time 15min；
2) control of three-roller pressure is in 10bar, and gap condition is gap 1. 1:15, gap 2. 1:30, gap 3. 1:10 and gap
④1:15, rolling 5 times；
3) control of three-roller pressure is in 20bar, gap condition gap 1. 0:55, gap 2. 1:05, gap 3. 0:55 and gap 4.
0:30, rolling 5 times；
4) for the control of three-roller pressure in 20bar, gap condition carries out rolling as follows, and rolling 8 times, gap 1. 0:35, gap 2. 0:
30, gap 3. 0:15 and gap 4. 0:15；
The slurry form that rolling finishes is in light grey body of paste, is had preferable mobility, fineness≤2.5 μm, and viscosity is 70 ±
10kcps。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810573803.4A CN108899108A (en) | 2018-06-06 | 2018-06-06 | A kind of low temperature touch screen printing silver paste and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810573803.4A CN108899108A (en) | 2018-06-06 | 2018-06-06 | A kind of low temperature touch screen printing silver paste and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN108899108A true CN108899108A (en) | 2018-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810573803.4A Pending CN108899108A (en) | 2018-06-06 | 2018-06-06 | A kind of low temperature touch screen printing silver paste and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101770829A (en) * | 2010-03-16 | 2010-07-07 | 彩虹集团公司 | Special silver electrode paste for touch screen and preparation method thereof |
| CN103582918A (en) * | 2011-05-23 | 2014-02-12 | 旭硝子株式会社 | Conductive paste, base having conductive film obtained using same, and method for producing base having conductive film |
| US20150262728A1 (en) * | 2014-03-11 | 2015-09-17 | E I Du Pont De Nemours And Company | Electrically conductive paste composition and method of forming an electrical circuit on a polymer substrate |
| CN107799199A (en) * | 2017-10-24 | 2018-03-13 | 彩虹集团新能源股份有限公司 | A kind of low cost low temperature sintering piezoresistor silver paste and preparation method thereof |
-
2018
- 2018-06-06 CN CN201810573803.4A patent/CN108899108A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101770829A (en) * | 2010-03-16 | 2010-07-07 | 彩虹集团公司 | Special silver electrode paste for touch screen and preparation method thereof |
| CN103582918A (en) * | 2011-05-23 | 2014-02-12 | 旭硝子株式会社 | Conductive paste, base having conductive film obtained using same, and method for producing base having conductive film |
| US20150262728A1 (en) * | 2014-03-11 | 2015-09-17 | E I Du Pont De Nemours And Company | Electrically conductive paste composition and method of forming an electrical circuit on a polymer substrate |
| CN107799199A (en) * | 2017-10-24 | 2018-03-13 | 彩虹集团新能源股份有限公司 | A kind of low cost low temperature sintering piezoresistor silver paste and preparation method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190611 Address after: 712021 No. 1 Rainbow Road, Qindu District, Xianyang City, Shaanxi Province Applicant after: Rainbow group new energy Limited by Share Ltd Applicant after: Shaanxi rainbow new material Co., Ltd. Address before: 712021 No. 1 Rainbow Road, Qindu District, Xianyang City, Shaanxi Province Applicant before: Rainbow group new energy Limited by Share Ltd |
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20181127 |