CN108735342A - A kind of conductive silver paste and preparation method thereof of flash lamp tube high conductivity - Google Patents
A kind of conductive silver paste and preparation method thereof of flash lamp tube high conductivity Download PDFInfo
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- CN108735342A CN108735342A CN201810676511.3A CN201810676511A CN108735342A CN 108735342 A CN108735342 A CN 108735342A CN 201810676511 A CN201810676511 A CN 201810676511A CN 108735342 A CN108735342 A CN 108735342A
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- high conductivity
- silver paste
- lamp tube
- flash lamp
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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
- 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
- H01B1/24—Conductive material dispersed in non-conductive organic material the conductive material comprising carbon-silicon compounds, carbon or silicon
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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
Abstract
The invention discloses a kind of conductive silver pastes of flash lamp tube high conductivity, include the raw material of following parts by weight：42-48 parts of macromolecule resin, 28-34 parts of modified carbon fiber, 16-22 parts of nano-silver powder, 14-18 parts of Wudalianchi, Heilongjiang Province volcanic mud, 3-6 parts of guar gum, 2-4 parts of JY-01 silane coupling agents, 12-18 parts of solvent.The object of the present invention is to provide a kind of conductive silver paste of flash lamp tube high conductivity, which conducts electricity very well, while property is stablized at high temperature, has higher use value and good application prospect.
Description
Technical field
The present invention relates to conductive silver paste technical fields, and in particular to a kind of conductive silver paste of flash lamp tube high conductivity and
Preparation method.
Background technology
Conductive silver paste is divided into two classes：Polymer conductive silver slurry（Dried or cured film forming, using organic polymer as bonding
Phase）；Slug type conductive silver slurry（Sintering film forming, sintering temperature>500 DEG C, glass powder or oxide are as bonding phase）；Silver powder shines
Particle size classification, average grain diameter<0.1 μm (100nm) is nano-silver powder；0.1μm< Dav（Average grain）10.0 μm are raw Ag powder, structure
Need different classes of silver powder or combination as the difference in conductive filler or even each classification at three classifications of silver conductive paste
Formula needs different silver powder as conducting function material, it is therefore an objective under determining formula or film-forming process, with minimum silver
Powder realizes that silver-colored electric conductivity and the maximum of thermal conductivity utilize, and is related to optimization and the cost of film performance.
Existing Chinese patent literature（Publication number：CN104332214B）A kind of low-temperature cured conductive silver paste is disclosed, this is led
Electric silver paste is made of the component of following mass percentage content：Silver powder：60~80；Macromolecule resin carrier：5~20；Ring
Oxygen resin oligomers：5~20；Solvent：5~10；Curing agent：0.1~5, though the material low-temperature curable, flash lamp tube is in work
When making, Effect of Hyperthermic Environment stability of material, while the materials conductive performance is bad.
Chinese patent literature（Publication number：CN103177787B）A kind of conducting powder being used to prepare conductive silver paste is disclosed,
It is characterized in that, the conducting powder contains Argent grain, glass powder, portland cement；Grain size≤20 μm of the Argent grain, with institute
On the basis of the total amount for stating conducting powder, the content of the Argent grain is 70-80 weight %, and the content of the glass powder is 2-15 weights
% is measured, the content of the portland cement is 5-23 weight %, which uses fiber for carbon fiber, and carbon fibre surface energy is low,
It is not fine to be added to effect in material.
Invention content
In view of the drawbacks of the prior art, the object of the present invention is to provide a kind of conductive silvers of flash lamp tube high conductivity
Slurry, the conductive silver paste conduct electricity very well, while property is stablized at high temperature, before having higher use value and good application
Scape.
The present invention solves technical problem and adopts the following technical scheme that：
The present invention provides a kind of conductive silver pastes of flash lamp tube high conductivity, include the raw material of following parts by weight：
42-48 parts of macromolecule resin, 28-34 parts of modified carbon fiber, 16-22 parts of nano-silver powder, Wudalianchi, Heilongjiang Province volcanic mud
14-18 parts, 3-6 parts of guar gum, 2-4 parts of JY-01 silane coupling agents, 12-18 parts of solvent.
Preferably, the conductive silver paste of the flash lamp tube high conductivity includes the raw material of following parts by weight：
44-48 parts of macromolecule resin, 30-34 parts of modified carbon fiber, 18-22 parts of nano-silver powder, Wudalianchi, Heilongjiang Province volcanic mud
16-18 parts, 4-6 parts of guar gum, 3-4 parts of JY-01 silane coupling agents, 14-18 parts of solvent.
Preferably, the conductive silver paste of the flash lamp tube high conductivity includes the raw material of following parts by weight：
45 parts of macromolecule resin, 31 parts of modified carbon fiber, 19 parts of nano-silver powder, 16 parts of Wudalianchi, Heilongjiang Province volcanic mud, Gu Er
4.5 parts of glue, 3 parts of JY-01 silane coupling agents, 15 parts of solvent.
Preferably, the macromolecule resin is epoxy resin, polyester resin.
Preferably, the modified carbon fiber preparation method is that carbon fiber bundle is placed in Soxhlet extraction to take in device, molten with acetone
Liquid reflux washing 36-48h, then the carbon fiber washed is taken out, be put into vacuum drying chamber and dry to constant weight, be subsequently placed in
It is spare in drier, spare carbon fiber is impregnated in 65-75% concentrated nitric acids then, is placed on 90-100 DEG C of water in water-bath stove
Bath processing 120-130min is subsequently sent to N- β-(aminoethyl)-γ-aminopropyltriethoxies dimethoxysilane, amino silane coupling
55-65min is impregnated in agent KH-550, re-dry is to get modified carbon fiber.
Preferably, the nano-silver powder grain size is 30-40 mesh.
Preferably, the Wudalianchi, Heilongjiang Province volcanic mud grain size is 20-30 mesh.
Preferably, the solvent is dimethyl succinate.
The present invention also provides a kind of preparation methods of the conductive silver paste of flash lamp tube high conductivity, including following step
Suddenly：
Step 1 weighs each component raw material as required；
Step 2 mixes macromolecule resin, modified carbon fiber, nano-silver powder, temperature is risen to 125-135 DEG C, then
Solvent is added, temperature rises to 145-155 DEG C, mixing speed 200-300r/min, mixing time 35-45min and obtains mixture A；
Step 3, by step 2 obtain mixture A, Wudalianchi, Heilongjiang Province volcanic mud, guar gum, JY-01 silane coupling agents into
Row stirs evenly, and mixing speed 315-325r/min, mixing time 35-45min are to get flash lamp tube high conductivity of the present invention
Conductive silver paste.
Preferably, the preparation method of the conductive silver paste of flash lamp tube high conductivity is：
Step 1 weighs each component raw material as required；
Step 2 mixes macromolecule resin, modified carbon fiber, nano-silver powder, and temperature is risen to 130 DEG C, is then added
Solvent, temperature rise to 150 DEG C, mixing speed 250r/min, mixing time 40min and obtain mixture A；
Step 3, by step 2 obtain mixture A, Wudalianchi, Heilongjiang Province volcanic mud, guar gum, JY-01 silane coupling agents into
Row stir evenly, mixing speed 320r/min, mixing time 40min to get flash lamp tube high conductivity of the present invention conduction
Silver paste.
Compared with prior art, the present invention has following advantageous effect：
（1）The macromolecule resin of the present invention is the mixture of epoxy resin, unsaturated polyester resin composition, epoxy resin high temperature resistant
Performance is good, improves material at high temperature stability, unsaturated polyester resin excellent in mechanical performance, chemical resistance is strong, in addition dielectric
Performance is good, then improves electrocondution slurry comprehensive performance.
（2）Carbon fiber has modulus height, high intensity etc., conducts electricity very well simultaneously, but mixed with other materials, cohesiveness
Difference is then modified, and with raw material mixing match in electrocondution slurry, is improved electrocondution slurry electric conductivity, is risen in addition with nano-silver powder
To synergistic effect, then enhance electric conductivity.
（3）Wudalianchi, Heilongjiang Province volcanic mud then improves conductive paste as electrocondution slurry filler, reinforcing material dispersibility
The comprehensive performance of material.
（4）It is obtained from embodiment 3 and comparative example 1-3, be not added with Wudalianchi, Heilongjiang Province volcanic mud, resistivity is after 1h
Resistivity becomes 7.9 after 2.1,3 months, it follows that, Wudalianchi, Heilongjiang Province volcanic mud is at high temperature to Stability of Resistivity
Can have a significant impact, embodiment 3 is relative to comparative example 3, and resistivity reduces 11 after resistivity reduces 3.5,3 months after 1h.
Specific implementation mode
With reference to specific embodiment, technical scheme in the embodiment of the invention is clearly and completely described, shows
So, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the reality in the present invention
Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts all belongs to
In the scope of protection of the invention.
Embodiment 1.
A kind of conductive silver paste of flash lamp tube high conductivity of the present embodiment, includes the raw material of following parts by weight：
42 parts of macromolecule resin, 28 parts of modified carbon fiber, 16 parts of nano-silver powder, 14 parts of Wudalianchi, Heilongjiang Province volcanic mud, Gu Er
3 parts of glue, 2 parts of JY-01 silane coupling agents, 12 parts of solvent.
The macromolecule resin of the present embodiment is epoxy resin, polyester resin.
The modified carbon fiber preparation method of the present embodiment is that carbon fiber bundle is placed in Soxhlet extraction to take in device, uses acetone soln
Reflux washing 36h, then the carbon fiber washed is taken out, be put into vacuum drying chamber and dry to constant weight, be subsequently placed in drying
It is spare in device, spare carbon fiber is impregnated in 65% concentrated nitric acid then, is placed on 90 DEG C of water bath processings in water-bath stove
120min is subsequently sent in N- β-(aminoethyl)-γ-aminopropyltriethoxies dimethoxysilane, amino silicane coupling agent KH-550
55min is impregnated, re-dry is to get modified carbon fiber.
The nano-silver powder grain size of the present embodiment is 30 mesh.
The Wudalianchi, Heilongjiang Province volcanic mud grain size of the present embodiment is 20 mesh.
The solvent of the present embodiment is dimethyl succinate.
A kind of preparation method of the conductive silver paste of flash lamp tube high conductivity of the present embodiment, includes the following steps：
Step 1 weighs each component raw material as required；
Step 2 mixes macromolecule resin, modified carbon fiber, nano-silver powder, and temperature is risen to 125 DEG C, is then added
Solvent, temperature rise to 145 DEG C, mixing speed 200r/min, mixing time 35min and obtain mixture A；
Step 3, by step 2 obtain mixture A, Wudalianchi, Heilongjiang Province volcanic mud, guar gum, JY-01 silane coupling agents into
Row stir evenly, mixing speed 315r/min, mixing time 35min to get flash lamp tube high conductivity of the present invention conduction
Silver paste.
Embodiment 2.
A kind of conductive silver paste of flash lamp tube high conductivity of the present embodiment, includes the raw material of following parts by weight：
48 parts of macromolecule resin, 34 parts of modified carbon fiber, 22 parts of nano-silver powder, 18 parts of Wudalianchi, Heilongjiang Province volcanic mud, Gu Er
6 parts of glue, 4 parts of JY-01 silane coupling agents, 18 parts of solvent.
The macromolecule resin of the present embodiment is epoxy resin, polyester resin.
The modified carbon fiber preparation method of the present embodiment is that carbon fiber bundle is placed in Soxhlet extraction to take in device, uses acetone soln
Reflux washing 48h, then the carbon fiber washed is taken out, be put into vacuum drying chamber and dry to constant weight, be subsequently placed in drying
It is spare in device, spare carbon fiber is impregnated in 75% concentrated nitric acid then, is placed on 100 DEG C of water bath processings in water-bath stove
130min is subsequently sent in N- β-(aminoethyl)-γ-aminopropyltriethoxies dimethoxysilane, amino silicane coupling agent KH-550
65min is impregnated, re-dry is to get modified carbon fiber.
The nano-silver powder grain size of the present embodiment is 40 mesh.
The Wudalianchi, Heilongjiang Province volcanic mud grain size of the present embodiment is 30 mesh.
The solvent of the present embodiment is dimethyl succinate.
A kind of preparation method of the conductive silver paste of flash lamp tube high conductivity of the present embodiment, includes the following steps：
Step 1 weighs each component raw material as required；
Step 2 mixes macromolecule resin, modified carbon fiber, nano-silver powder, and temperature is risen to 135 DEG C, is then added
Solvent, temperature rise to 155 DEG C, mixing speed 300r/min, mixing time 45min and obtain mixture A；
Step 3, by step 2 obtain mixture A, Wudalianchi, Heilongjiang Province volcanic mud, guar gum, JY-01 silane coupling agents into
Row stir evenly, mixing speed 325r/min, mixing time 45min to get flash lamp tube high conductivity of the present invention conduction
Silver paste.
Embodiment 3.
A kind of conductive silver paste of flash lamp tube high conductivity of the present embodiment, includes the raw material of following parts by weight：
45 parts of macromolecule resin, 31 parts of modified carbon fiber, 19 parts of nano-silver powder, 16 parts of Wudalianchi, Heilongjiang Province volcanic mud, Gu Er
4.5 parts of glue, 3 parts of JY-01 silane coupling agents, 15 parts of solvent.
The macromolecule resin of the present embodiment is epoxy resin, polyester resin.
The modified carbon fiber preparation method of the present embodiment is that carbon fiber bundle is placed in Soxhlet extraction to take in device, uses acetone soln
Reflux washing 41h, then the carbon fiber washed is taken out, be put into vacuum drying chamber and dry to constant weight, be subsequently placed in drying
It is spare in device, spare carbon fiber is impregnated in 70% concentrated nitric acid then, is placed on 95 DEG C of water bath processings in water-bath stove
125min is subsequently sent in N- β-(aminoethyl)-γ-aminopropyltriethoxies dimethoxysilane, amino silicane coupling agent KH-550
60min is impregnated, re-dry is to get modified carbon fiber.
The nano-silver powder grain size of the present embodiment is 35 mesh.
The Wudalianchi, Heilongjiang Province volcanic mud grain size of the present embodiment is 25 mesh.
The solvent of the present embodiment is dimethyl succinate.
A kind of preparation method of the conductive silver paste of flash lamp tube high conductivity of the present embodiment, includes the following steps：
Step 1 weighs each component raw material as required；
Step 2 mixes macromolecule resin, modified carbon fiber, nano-silver powder, temperature is risen to 125-135 DEG C, then
Solvent is added, temperature rises to 145-155 DEG C, mixing speed 200-300r/min, mixing time 35-45min and obtains mixture A；
Step 3, by step 2 obtain mixture A, Wudalianchi, Heilongjiang Province volcanic mud, guar gum, JY-01 silane coupling agents into
Row stirs evenly, and mixing speed 315-325r/min, mixing time 35-45min are to get flash lamp tube high conductivity of the present invention
Conductive silver paste.
Comparative example 1.
It is essentially identical with the material and preparation process of embodiment 3, it has only the difference is that being not added with modified carbon fiber.
Comparative example 2.
It is essentially identical with the material and preparation process of embodiment 3, it has only the difference is that being not added with Wudalianchi, Heilongjiang Province volcanic mud.
Comparative example 3.
Using Chinese patent literature（Publication number：CN104332214B）Disclose embodiment 1 in a kind of low-temperature cured conductive silver paste
Raw material and method.
Performance test：
Embodiment 3 and comparative example 1-3 the performance test results are as follows
It is obtained from embodiment 3 and comparative example 1-3, be not added with Wudalianchi, Heilongjiang Province volcanic mud, resistivity is 2.1,3 months after 1h
Resistivity becomes 7.9 afterwards, it follows that, Wudalianchi, Heilongjiang Province volcanic mud can have very big shadow to Stability of Resistivity at high temperature
It rings, embodiment 3 is relative to comparative example 3, and resistivity reduces 11 after resistivity reduces 3.5,3 months after 1h.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (10)
1. a kind of conductive silver paste of flash lamp tube high conductivity, which is characterized in that include the raw material of following parts by weight：
42-48 parts of macromolecule resin, 28-34 parts of modified carbon fiber, 16-22 parts of nano-silver powder, Wudalianchi, Heilongjiang Province volcanic mud
14-18 parts, 3-6 parts of guar gum, 2-4 parts of JY-01 silane coupling agents, 12-18 parts of solvent.
2. a kind of conductive silver paste of flash lamp tube high conductivity according to claim 1, which is characterized in that the flash of light
The conductive silver paste of fluorescent tube high conductivity includes the raw material of following parts by weight：
44-48 parts of macromolecule resin, 30-34 parts of modified carbon fiber, 18-22 parts of nano-silver powder, Wudalianchi, Heilongjiang Province volcanic mud
16-18 parts, 4-6 parts of guar gum, 3-4 parts of JY-01 silane coupling agents, 14-18 parts of solvent.
3. a kind of conductive silver paste of flash lamp tube high conductivity according to claim 2, which is characterized in that the flash of light
The conductive silver paste of fluorescent tube high conductivity includes the raw material of following parts by weight：
45 parts of macromolecule resin, 31 parts of modified carbon fiber, 19 parts of nano-silver powder, 16 parts of Wudalianchi, Heilongjiang Province volcanic mud, Gu Er
4.5 parts of glue, 3 parts of JY-01 silane coupling agents, 15 parts of solvent.
4. a kind of conductive silver paste of flash lamp tube high conductivity according to claim 1, which is characterized in that the high score
Subtree fat is epoxy resin, polyester resin.
5. a kind of conductive silver paste of flash lamp tube high conductivity according to claim 1, which is characterized in that the modification
Carbon fiber production method is that carbon fiber bundle is placed in Soxhlet extraction to take in device, is flowed back with acetone soln and washs 36-48h, then will
The carbon fiber that has washed takes out, and is put into vacuum drying chamber and dries to constant weight, be subsequently placed in it is spare in drier, then will be spare
Carbon fiber impregnated in 65-75% concentrated nitric acids, be placed on 90-100 DEG C of water bath processing 120-130min in water-bath stove, then send
Enter in N- β-(aminoethyl)-γ-aminopropyltriethoxies dimethoxysilane, amino silicane coupling agent KH-550 and impregnate 55-65min,
Re-dry is to get modified carbon fiber.
6. a kind of conductive silver paste of flash lamp tube high conductivity according to claim 1, which is characterized in that the nanometer
Silver powder grain size is 30-40 mesh.
7. a kind of conductive silver paste of flash lamp tube high conductivity according to claim 1, which is characterized in that the black dragon
River Wudalianchi Volcanic mud pellet diameter is 20-30 mesh.
8. a kind of conductive silver paste of flash lamp tube high conductivity according to claim 1, which is characterized in that the solvent
For dimethyl succinate.
9. a kind of method for the conductive silver paste preparing flash lamp tube high conductivity as claimed in claim 1 or 2, feature exist
In including the following steps：
Step 1 weighs each component raw material as required；
Step 2 mixes macromolecule resin, modified carbon fiber, nano-silver powder, temperature is risen to 125-135 DEG C, then
Solvent is added, temperature rises to 145-155 DEG C, mixing speed 200-300r/min, mixing time 35-45min and obtains mixture A；
Step 3, by step 2 obtain mixture A, Wudalianchi, Heilongjiang Province volcanic mud, guar gum, JY-01 silane coupling agents into
Row stirs evenly, and mixing speed 315-325r/min, mixing time 35-45min are to get flash lamp tube high conductivity of the present invention
Conductive silver paste.
10. a kind of preparation method of the conductive silver paste of flash lamp tube high conductivity according to claim 9, feature exist
In the preparation method of the conductive silver paste of flash lamp tube high conductivity is：
Step 1 weighs each component raw material as required；
Step 2 mixes macromolecule resin, modified carbon fiber, nano-silver powder, and temperature is risen to 130 DEG C, is then added
Solvent, temperature rise to 150 DEG C, mixing speed 250r/min, mixing time 40min and obtain mixture A；
Step 3, by step 2 obtain mixture A, Wudalianchi, Heilongjiang Province volcanic mud, guar gum, JY-01 silane coupling agents into
Row stir evenly, mixing speed 320r/min, mixing time 40min to get flash lamp tube high conductivity of the present invention conduction
Silver paste.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810676511.3A CN108735342A (en) | 2018-06-27 | 2018-06-27 | A kind of conductive silver paste and preparation method thereof of flash lamp tube high conductivity |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810676511.3A CN108735342A (en) | 2018-06-27 | 2018-06-27 | A kind of conductive silver paste and preparation method thereof of flash lamp tube high conductivity |
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| CN107189356A (en) * | 2017-07-07 | 2017-09-22 | 合肥新意境材料有限责任公司 | A kind of carbon fiber epoxy resin composite material of modified pitch toughness reinforcing and preparation method thereof |
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| CN107868475A (en) * | 2017-12-21 | 2018-04-03 | 姜莉 | A kind of preparation method of the thermal conductive insulation silicon rubber composite material of ethylene vinyl acetate blending and modifying |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101820002A (en) * | 2009-02-27 | 2010-09-01 | 比亚迪股份有限公司 | Conductive paste for solar cell and preparation method thereof |
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Application publication date: 20181102 |
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