CN101935477A - Low-temperature conductive carbon paste and preparation method thereof - Google Patents
Low-temperature conductive carbon paste and preparation method thereof Download PDFInfo
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- CN101935477A CN101935477A CN 201010293057 CN201010293057A CN101935477A CN 101935477 A CN101935477 A CN 101935477A CN 201010293057 CN201010293057 CN 201010293057 CN 201010293057 A CN201010293057 A CN 201010293057A CN 101935477 A CN101935477 A CN 101935477A
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- Prior art keywords
- conductive carbon
- carbon paste
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- percent
- type resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 64
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 239000002904 solvent Substances 0.000 claims abstract description 47
- 239000011347 resin Substances 0.000 claims abstract description 35
- 229920005989 resin Polymers 0.000 claims abstract description 35
- 239000007822 coupling agent Substances 0.000 claims abstract description 14
- 238000009835 boiling Methods 0.000 claims abstract description 13
- 238000003756 stirring Methods 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 9
- 238000000227 grinding Methods 0.000 claims abstract description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 20
- 239000006185 dispersion Substances 0.000 claims description 20
- 239000000428 dust Substances 0.000 claims description 19
- 238000005303 weighing Methods 0.000 claims description 16
- 229920000178 Acrylic resin Polymers 0.000 claims description 14
- 239000004925 Acrylic resin Substances 0.000 claims description 14
- 239000002002 slurry Substances 0.000 claims description 14
- 238000009775 high-speed stirring Methods 0.000 claims description 8
- 229920002635 polyurethane Polymers 0.000 claims description 8
- 239000004814 polyurethane Substances 0.000 claims description 8
- NQBXSWAWVZHKBZ-UHFFFAOYSA-N 2-butoxyethyl acetate Chemical compound CCCCOCCOC(C)=O NQBXSWAWVZHKBZ-UHFFFAOYSA-N 0.000 claims description 6
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 claims description 6
- XHEDLZYGAQSNTR-UHFFFAOYSA-N ethene;hexanedioic acid Chemical group C=C.C=C.OC(=O)CCCCC(O)=O XHEDLZYGAQSNTR-UHFFFAOYSA-N 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical group [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 229910000077 silane Inorganic materials 0.000 claims description 2
- 239000002994 raw material Substances 0.000 abstract description 4
- 239000011248 coating agent Substances 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 abstract description 2
- 239000002270 dispersing agent Substances 0.000 abstract 1
- 229910002804 graphite Inorganic materials 0.000 abstract 1
- 239000010439 graphite Substances 0.000 abstract 1
- 230000036314 physical performance Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 239000004744 fabric Substances 0.000 description 7
- 238000007613 slurry method Methods 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
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- Conductive Materials (AREA)
- Paints Or Removers (AREA)
Abstract
The invention relates to low-temperature conductive carbon paste and a preparation method thereof. The conductive carbon paste is prepared from the following raw materials in percentage by weight: 24.8-30 percent of carbon powder, 5-10 percent of colloidal graphite, 64.8-70 percent of carrier and 0.2-1 percent of dispersant, and the preparation method comprises the steps of: by fully mixing the raw materials and then, grinding and dispersing 5-8 times (for 3-15 min perfor every kilogram every time) with a three-roll grinder so as to form an even mixed phase and obtain conductive carbon paste. The organic carrier is prepared by weighting the following raw materials in percentage by weight: 10-15 percent of solvent-type resin A, 10-15 percent of solvent-type resin B and 74.8-79.8 percent of solvent with a high boiling point, stirring at a high speed in a water bath to fully dissolve the resin in a solvent, adding 0.2-1 percent of coupling agent and evenly stirring. The invention enhances the compactness of the carbon paste structure, improves the conductive performance, and improves the physical performance of a coating, which and has excellent adhesion, refrangibility, abrasive resistance and hardness.
Description
Technical field
The present invention relates to a kind of low-temperature conductive carbon slurry and preparation method thereof.
Background technology
Conductive carbon paste is that the carbon with nonmetal conductor material is that particulate is distributed in thermoplastic resin and the electrically conductive ink made equably.After being heating and curing, the ink film layer is difficult for oxidation, stable performance; Acid-and base-resisting and solvent corrosion can play the effect of protection and conduction.The strong adhesion of printing ink, antistripping combines well with metal, glass-cloth board and VC, PET and PC sheet material.Suppose mutually that with conductive silver paste resistance is bigger, but with low cost, the cost performance height.
Conductive carbon paste is widely used in communication goods (mobile telephone), computer (notebook), portable type electronic product, consumer electronics, the network hardware (server etc.), Medical Instruments, domestic electronic appliances and electronicss such as space flight and national defence.Yet the conductivity of existing conductive carbon paste is not high.If the carbon slurry has better conductivity and physicals, then the carbon slurry has bigger using value.
Summary of the invention
The object of the present invention is to provide a kind of good low-temperature conductive ink, can be applicable to film key, printed resistor, heat generating component, flexible circuitry, joint line.
Another object of the present invention is to provide a kind of low-temperature conductive carbon slurry and preparation method thereof.
The objective of the invention is to be achieved through the following technical solutions, a kind of conductive carbon paste is characterized in that, this conductive carbon paste is formed by the feedstock production of following mass percentage content:
Carbon dust 24.8-30%;
Oildag 5-10%;
Carrier 64.8-70%;
Dispersion agent 0.2-1%.
Described carbon dust, radius are 0.1-12 μ m.
Described oildag, radius are 0.1-5 μ m.
Described carrier is formed by the feedstock production of following mass percentage content:
Solvent type resin A 10-15%;
Solvent type resin B 10-15%;
High boiling solvent 74.8-79.8%;
Coupling agent 0.2-1%.
Described solvent type resin A selects vibrin or polyurethane for use.
Described solvent type resin B selects acrylic resin for use.
Described high boiling solvent is diethylene adipate, 2-Butoxyethyl acetate or 1, a kind of in the 4-butyrolactone.
Described coupling agent is silane coupling A 150, A170 or A1719.
Described dispersion agent is a DA type dispersion agent.
The present invention gives the preparation method of this conductive carbon paste, and this method comprises the steps:
1) preparation organic carrier: the solvent type resin A of weighing mass percent 10-15%, 10-15% solvent type resin B, 74.8-79.8% high boiling solvent in 70-100 ℃ of water-bath high-speed stirring 2-5 hour make resin be dissolved in the solvent fully; The back adds the 0.2-1% coupling agent and stirs, and is stand-by;
2) carbon slurry: the material thorough mixing that 24.8-30% carbon dust, 5-10% oildag, 64.8-70% carrier and the weighing of 0.2-1% dispersion agent are finished, use three-roll grinder to disperse 5-8 time then according to one kilogram of every grinding all over 3-15 minute, make it to form uniform mixed phase, promptly get conductive carbon paste.
The present invention uses carbon dust and oildag combination, has increased the compactness of carbon slurry structure, can improve conductivity.Add coupling agent simultaneously, make powder and resin-bonded tightr, improve the coating physicals.Good sticking power is arranged, refrangibility wear resistance and hardness.
Embodiment
Below by specific embodiment the present invention is described in further detail.Need to prove that following embodiment only is used to illustrate the present invention, but be not limited to practical range of the present invention.
Unless otherwise indicated, the following raw material add-on that adopts of the present invention is mass percent.
Embodiment 1
Prepare carrier earlier:
Vibrin 12%;
Acrylic resin 12%;
Diethylene adipate 75.5%;
A150 0.5％；
By above mass percent weighing solvent type resin A vibrin, solvent type resin B acrylic resin, high boiling solvent diethylene adipate high-speed stirring 5 hours in 70 ℃ of water-baths, make resin be dissolved in the solvent fully; The back adds coupling agent A150 and stirs, and is standby;
Preparation carbon slurry:
Carbon dust 26%;
Oildag 7%;
Carrier 66.5%;
DA type dispersion agent 0.5%;
By above mass percent weighing carbon dust, oildag, carrier and DA type dispersion agent and thorough mixing, use three-roll grinder (SDV 1300, Switzerland's cloth are reined in) to grind then and disperse (one kilogram every all over 3 minutes) 5 times, make it to form uniform mixed phase, promptly get conductive carbon paste.
Embodiment 2
Prepare carrier earlier:
Vibrin 10%;
Acrylic resin 15%;
2-Butoxyethyl acetate 74.8%;
A170 0.2％；
By above mass percent weighing solvent type resin A vibrin, solvent type resin B acrylic resin, high boiling solvent 2-Butoxyethyl acetate high-speed stirring 3 hours in 90 ℃ of water-baths, make resin be dissolved in the solvent fully; The back adds coupling agent A170 and stirs, and is standby;
Preparation carbon slurry:
Carbon dust 30%;
Oildag 5%;
Carrier 64.8%;
DA type dispersion agent 0.2%;
By above mass percent weighing carbon dust, oildag, carrier and DA type dispersion agent and thorough mixing, use three-roll grinder (SDV 1300, Switzerland's cloth are reined in) to grind then and disperse (one kilogram every all over 5 minutes) 6 times, make it to form uniform mixed phase, promptly get conductive carbon paste.
Embodiment 3
Prepare carrier earlier:
Vibrin 15%;
Acrylic resin 10%;
1,4-butyrolactone 74.8%;
A171 0.2％；
By above mass percent weighing solvent type resin A vibrin, solvent type resin B acrylic resin, high boiling solvent 1,4-butyrolactone high-speed stirring 2 hours in 100 ℃ of water-baths makes resin be dissolved in the solvent fully; The back adds coupling agent A171 and stirs, and is standby;
Preparation carbon slurry:
Carbon dust 25%;
Oildag 8%;
Carrier 66%;
DA type dispersion agent 1%;
By above mass percent weighing carbon dust, oildag, carrier and DA type dispersion agent and thorough mixing, use three-roll grinder (SDV 1300, Switzerland's cloth are reined in) to grind then and disperse (one kilogram every all over 10 minutes) 8 times, make it to form uniform mixed phase, promptly get conductive carbon paste.
Embodiment 4
Prepare carrier earlier:
Polyurethane 13%;
Acrylic resin 11%;
Diethylene adipate 75%;
A150 1％；
By above mass percent weighing solvent type resin A polyurethane, solvent type resin B acrylic resin, high boiling solvent diethylene adipate high-speed stirring 3 hours in 80 ℃ of water-baths, make resin be dissolved in the solvent fully; The back adds coupling agent A150 and stirs, and is standby;
Preparation carbon slurry:
Carbon dust 24.8%;
Oildag 10%;
Carrier 65%;
DA type dispersion agent 0.2%;
By above mass percent weighing carbon dust, oildag, carrier and DA type dispersion agent and thorough mixing, use three-roll grinder (SDV 1300, Switzerland's cloth are reined in) to grind then and disperse (one kilogram every all over 8 minutes) 6 times, make it to form uniform mixed phase, promptly get conductive carbon paste.
Embodiment 5
Prepare carrier earlier:
Polyurethane 13%;
Acrylic resin 12.2%;
2-Butoxyethyl acetate 70%;
A1719 0.8％；
By above mass percent weighing solvent type resin A polyurethane, solvent type resin B acrylic resin, high boiling solvent 2-Butoxyethyl acetate high-speed stirring 5 hours in 70 ℃ of water-baths, make resin be dissolved in the solvent fully; The back adds coupling agent A1719 and stirs, and is standby;
Preparation carbon slurry:
Carbon dust 24.8%;
Oildag 5%;
Carrier 70%;
DA type dispersion agent 0.2%;
By above mass percent weighing carbon dust, oildag, carrier and DA type dispersion agent and thorough mixing, use three-roll grinder (SDV 1300, Switzerland's cloth are reined in) to grind then and disperse (one kilogram every all over 12 minutes) 8 times, make it to form uniform mixed phase, promptly get conductive carbon paste.
Embodiment 6
Prepare carrier earlier:
Polyurethane 10%;
Acrylic resin 10%;
1,4-butyrolactone 79.8%;
A170 0.2％；
By above mass percent weighing solvent type resin A polyurethane, solvent type resin B acrylic resin, high boiling solvent 1,4-butyrolactone high-speed stirring 4 hours in 85 ℃ of water-baths makes resin be dissolved in the solvent fully; The back adds coupling agent A170 and stirs, and is standby;
Preparation carbon slurry:
Carbon dust 26%;
Oildag 3%;
Carrier 70%;
DA type dispersion agent 1%;
By above mass percent weighing carbon dust, oildag, carrier and DA type dispersion agent and thorough mixing, use three-roll grinder (SDV 1300, Switzerland's cloth are reined in) to grind then and disperse (one kilogram every all over 15 minutes) 7 times, make it to form uniform mixed phase, promptly get conductive carbon paste.
Claims (10)
1. a conductive carbon paste is characterized in that, this conductive carbon paste is formed by the feedstock production of following mass percentage content:
Carbon dust 24.8-30%;
Oildag 5-10%;
Carrier 64.8-70%;
Dispersion agent 0.2-1%.
2. a kind of conductive carbon paste according to claim 1 is characterized in that, described carbon dust, radius are 0.1-12 μ m.
3. a kind of conductive carbon paste according to claim 1 is characterized in that, described oildag, radius are 0.1-5 μ m.
4. a kind of conductive carbon paste according to claim 1 is characterized in that, described carrier is formed by the feedstock production of following mass percentage content:
Solvent type resin A 10-15%;
Solvent type resin B 10-15%;
High boiling solvent 74.8-79.8%;
Coupling agent 0.2-1%.
5. a kind of conductive carbon paste according to claim 4 is characterized in that, described solvent type resin A selects vibrin or polyurethane for use.
6. a kind of conductive carbon paste according to claim 4 is characterized in that, described solvent type resin B selects acrylic resin for use.
7. a kind of conductive carbon paste according to claim 4 is characterized in that, described high boiling solvent is diethylene adipate, 2-Butoxyethyl acetate or 1, a kind of in the 4-butyrolactone.
8. a kind of conductive carbon paste according to claim 4 is characterized in that, described coupling agent is silane coupling A 150, A170 or A1719.
9. a kind of conductive carbon paste according to claim 1 is characterized in that, described dispersion agent is a DA type dispersion agent.
10. the preparation method of a kind of conductive carbon paste according to claim 1 is characterized in that, this method comprises the steps:
1) preparation organic carrier: the solvent type resin A of weighing mass percent 10-15%, 10-15% solvent type resin B, 74.8-79.8% high boiling solvent in 70-100 ℃ of water-bath high-speed stirring 2-5 hour make resin be dissolved in the solvent fully; The back adds the 0.2-1% coupling agent and stirs, and is stand-by;
2) carbon slurry: the material thorough mixing that 24.8-30% carbon dust, 5-10% oildag, 64.8-70% carrier and the weighing of 0.2-1% dispersion agent are finished, use three-roll grinder to disperse 5-8 time then according to one kilogram of every grinding all over 3-15 minute, make it to form uniform mixed phase, promptly get conductive carbon paste.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010293057 CN101935477A (en) | 2010-09-27 | 2010-09-27 | Low-temperature conductive carbon paste and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010293057 CN101935477A (en) | 2010-09-27 | 2010-09-27 | Low-temperature conductive carbon paste and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101935477A true CN101935477A (en) | 2011-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 201010293057 Pending CN101935477A (en) | 2010-09-27 | 2010-09-27 | Low-temperature conductive carbon paste and preparation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102181250A (en) * | 2011-03-28 | 2011-09-14 | 彩虹集团公司 | Carbon black conductive adhesive and preparation method thereof |
| CN102329496A (en) * | 2011-06-30 | 2012-01-25 | 苏州新纶超净技术有限公司 | High-conductivity carbon slurry and preparation method thereof |
| CN102360587A (en) * | 2011-09-23 | 2012-02-22 | 苏州喜仁新材料科技有限公司 | Low-temperature halogen-free high-conductivity carbon paste and preparation method thereof |
| CN102443320A (en) * | 2011-10-18 | 2012-05-09 | 张文知 | Carbon water-based conductive ink |
| CN102858036A (en) * | 2012-08-27 | 2013-01-02 | 苏州喜仁新材料科技有限公司 | High-resistance low-temperature heating carbon paste and preparation method thereof |
| CN105244077A (en) * | 2015-11-04 | 2016-01-13 | 中国科学院宁波材料技术与工程研究所 | Conductive carbon paste and preparation method thereof |
| CN110364284A (en) * | 2019-04-16 | 2019-10-22 | 北京氦舶科技有限责任公司 | A kind of conductive silver paste organic carrier and preparation method thereof |
| CN112908514A (en) * | 2021-02-22 | 2021-06-04 | 苏州英纳电子材料有限公司 | Easy-to-wipe black carbon slurry and preparation method thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102181250A (en) * | 2011-03-28 | 2011-09-14 | 彩虹集团公司 | Carbon black conductive adhesive and preparation method thereof |
| CN102329496A (en) * | 2011-06-30 | 2012-01-25 | 苏州新纶超净技术有限公司 | High-conductivity carbon slurry and preparation method thereof |
| CN102329496B (en) * | 2011-06-30 | 2012-10-10 | 苏州新纶超净技术有限公司 | Highly conductive carbon paste and preparation method thereof |
| CN102360587A (en) * | 2011-09-23 | 2012-02-22 | 苏州喜仁新材料科技有限公司 | Low-temperature halogen-free high-conductivity carbon paste and preparation method thereof |
| CN102360587B (en) * | 2011-09-23 | 2013-01-02 | 苏州喜仁新材料科技有限公司 | Low-temperature halogen-free high-conductivity carbon paste and preparation method thereof |
| CN102443320A (en) * | 2011-10-18 | 2012-05-09 | 张文知 | Carbon water-based conductive ink |
| CN102858036A (en) * | 2012-08-27 | 2013-01-02 | 苏州喜仁新材料科技有限公司 | High-resistance low-temperature heating carbon paste and preparation method thereof |
| CN102858036B (en) * | 2012-08-27 | 2014-11-05 | 苏州喜仁新材料科技有限公司 | High-resistance low-temperature heating carbon paste and preparation method thereof |
| CN105244077A (en) * | 2015-11-04 | 2016-01-13 | 中国科学院宁波材料技术与工程研究所 | Conductive carbon paste and preparation method thereof |
| CN110364284A (en) * | 2019-04-16 | 2019-10-22 | 北京氦舶科技有限责任公司 | A kind of conductive silver paste organic carrier and preparation method thereof |
| CN112908514A (en) * | 2021-02-22 | 2021-06-04 | 苏州英纳电子材料有限公司 | Easy-to-wipe black carbon slurry and preparation method thereof |
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Open date: 20110105 |