CN103102742B - Preparation method of nano graphite conductive ink - Google Patents
Preparation method of nano graphite conductive ink Download PDFInfo
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- CN103102742B CN103102742B CN201210536362.3A CN201210536362A CN103102742B CN 103102742 B CN103102742 B CN 103102742B CN 201210536362 A CN201210536362 A CN 201210536362A CN 103102742 B CN103102742 B CN 103102742B
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- conductive ink
- epoxy resin
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- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 28
- 239000010439 graphite Substances 0.000 title claims abstract description 28
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000003822 epoxy resin Substances 0.000 claims abstract description 21
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 21
- -1 polydimethylsiloxane Polymers 0.000 claims abstract description 13
- 229920001730 Moisture cure polyurethane Polymers 0.000 claims abstract description 12
- 229920002635 polyurethane Polymers 0.000 claims abstract description 12
- 239000004814 polyurethane Substances 0.000 claims abstract description 12
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000004205 dimethyl polysiloxane Substances 0.000 claims abstract description 7
- 239000000975 dye Substances 0.000 claims abstract description 7
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims abstract description 7
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 5
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 claims abstract 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 30
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 16
- 239000012948 isocyanate Substances 0.000 claims description 10
- 150000002513 isocyanates Chemical class 0.000 claims description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 claims description 6
- UNIYDALVXFPINL-UHFFFAOYSA-N 3-(2-methylprop-2-enoyloxy)propylsilicon Chemical compound CC(=C)C(=O)OCCC[Si] UNIYDALVXFPINL-UHFFFAOYSA-N 0.000 claims description 6
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 6
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 6
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 6
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 230000010355 oscillation Effects 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- HMEKVHWROSNWPD-UHFFFAOYSA-N Erioglaucine A Chemical compound [NH4+].[NH4+].C=1C=C(C(=C2C=CC(C=C2)=[N+](CC)CC=2C=C(C=CC=2)S([O-])(=O)=O)C=2C(=CC=CC=2)S([O-])(=O)=O)C=CC=1N(CC)CC1=CC=CC(S([O-])(=O)=O)=C1 HMEKVHWROSNWPD-UHFFFAOYSA-N 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- HADJHXHBAFQEAO-UHFFFAOYSA-L disodium 4-[(1-amino-8-oxido-7-phenyldiazenyl-3,6-disulfonaphthalen-2-yl)diazenyl]-N-[4-[(2,4-diaminophenyl)diazenyl]phenyl]benzenecarboximidate Chemical compound [Na+].[Na+].Nc1ccc(N=Nc2ccc(NC(=O)c3ccc(cc3)N=Nc3c(N)c4c(O)c(N=Nc5ccccc5)c(cc4cc3S([O-])(=O)=O)S([O-])(=O)=O)cc2)c(N)c1 HADJHXHBAFQEAO-UHFFFAOYSA-L 0.000 claims description 2
- SXQCTESRRZBPHJ-UHFFFAOYSA-M lissamine rhodamine Chemical compound [Na+].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=C(S([O-])(=O)=O)C=C1S([O-])(=O)=O SXQCTESRRZBPHJ-UHFFFAOYSA-M 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- UJMBCXLDXJUMFB-UHFFFAOYSA-K trisodium;5-oxo-1-(4-sulfonatophenyl)-4-[(4-sulfonatophenyl)diazenyl]-4h-pyrazole-3-carboxylate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)C1=NN(C=2C=CC(=CC=2)S([O-])(=O)=O)C(=O)C1N=NC1=CC=C(S([O-])(=O)=O)C=C1 UJMBCXLDXJUMFB-UHFFFAOYSA-K 0.000 claims description 2
- DOVZUKKPYKRVIK-UHFFFAOYSA-N 1-methoxypropan-2-yl propanoate Chemical compound CCC(=O)OC(C)COC DOVZUKKPYKRVIK-UHFFFAOYSA-N 0.000 abstract 1
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 abstract 1
- SVONRAPFKPVNKG-UHFFFAOYSA-N 2-ethoxyethyl acetate Chemical compound CCOCCOC(C)=O SVONRAPFKPVNKG-UHFFFAOYSA-N 0.000 abstract 1
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical group COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 abstract 1
- 239000002202 Polyethylene glycol Substances 0.000 abstract 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 abstract 1
- 229920001223 polyethylene glycol Polymers 0.000 abstract 1
- 229910000077 silane Inorganic materials 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007770 graphite material Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000011231 conductive filler Substances 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- UZZFFIUHUDOYPS-UHFFFAOYSA-L disodium 4-amino-3,6-bis[[4-[(2,4-diaminophenyl)diazenyl]phenyl]diazenyl]-5-oxido-7-sulfonaphthalene-2-sulfonate Chemical compound [Na+].[Na+].Nc1ccc(N=Nc2ccc(cc2)N=Nc2c(N)c3c(O)c(N=Nc4ccc(cc4)N=Nc4ccc(N)cc4N)c(cc3cc2S([O-])(=O)=O)S([O-])(=O)=O)c(N)c1 UZZFFIUHUDOYPS-UHFFFAOYSA-L 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000012764 mineral filler Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920003987 resole Polymers 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Inks, Pencil-Leads, Or Crayons (AREA)
- Conductive Materials (AREA)
Abstract
The invention discloses a preparation method of the nano graphite conductive ink. The preparation method comprises the following steps of: 1) reacting polyethylene glycol with 2,4-toluene diisocyanate to obtain isocyanate-terminated polyurethane prepolymer; 2) reacting epoxy resin with ethylene glycol monoethyl ether acetate and the isocyanate-terminated polyurethane prepolymer to obtain polyurethane modified epoxy resin; 3) adding graphite, propylene glycol methyl ether propionate, tributyl phosphate, proprylene glycol monomethyl ether, polydimethylsiloxane, methyl acryloyl oxygen group silane and dyes into a solution of polyurethane modified epoxy resin in acetone, uniformly mixing, and conducting ultrasonic shaking to obtain the nano graphite conductive ink. Through adding the nano graphite, the nano graphite conductive ink disclosed by the invention has the advantage of good electrical conductivity, low viscidity, low fragility, high elasticity and good impact resistance.
Description
Technical field
The invention belongs to technical field of ink, be specifically related to a kind of preparation method of nano-graphite electrically conductive ink.
Background technology
Flexible circuit is to realize electronics and IT products multifunction, integrated, miniaturization and key part cheaply.Along with electronic product and equipment are to future developments such as light, thin, little, low cost, multi-functional, high reliability, the consumption of flexible circuit is increasing, utilize electrically conductive ink or conductive ink by the mode of printing or printing, on flexible insulation substrate, form conducting wire and caused scientific research personnel's extensive concern.Electrically conductive ink can be divided into structure-type and filled-type two classes by its structure difference.The electrically conductive ink that is applied at present electron trade is mainly compound-type conducting ink, conductive filler material used is generally mineral filler, as gold and silver, copper, nickel, carbon black, graphite, carbon fiber etc., and low-melting ink vehicle resin is selected resol, epoxy resin, urethane etc. conventionally.Wherein epoxy resin is because of excellent property and raw material widely application in conductive polymers cheap and easy to get, but also has the shortcomings such as electroconductibility is weak, viscosity is large, fragility is large, elasticity is little, poor impact resistance, so be necessary it modified toughened.
Summary of the invention
Technical problem to be solved by this invention is: the preparation method that the nano-graphite electrically conductive ink that a kind of electroconductibility is strong, viscosity is little, fragility is little, elasticity is large, shock-resistance is good is provided.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of preparation method of nano-graphite electrically conductive ink, the steps include:
1) by polyoxyethylene glycol, heating vacuumizes dewaters to water-content≤0.2%, inflated with nitrogen protection after being cooled to 20 ~ 25 DEG C, in regulating, 80 ~ 85 DEG C of temperature, add 2,4 toluene diisocyanate, stirring reaction to-NCO content is≤4%, stopped reaction, is cooled to 20 ~ 25 DEG C, obtains isocyanate terminated base polyurethane prepolymer for use as;
2) in reaction, add epoxy resin, then add ethylene glycol ether acetate to dissolve completely, 75 ~ 80 DEG C of temperature in keeping, the more isocyanate terminated base polyurethane prepolymer for use as that adds step 1) to arrive, reaction 2.5 ~ 3h, obtains polyurethane modified epoxy resin;
3) by step 2) polyurethane modified epoxy resin of gained is dissolved in acetone, adding particle diameter is the graphite of 7～8nm, add again propylene glycol monomethyl ether acetate, tbp, propylene glycol monomethyl ether, polydimethylsiloxane, methacryloxypropyl silane, dyestuff, after mixing, process 30 ~ 50min with ultrasonic oscillation again, obtain nano-graphite electrically conductive ink.
The mol ratio of the 2,4 toluene diisocyanate described in step 1) and polyoxyethylene glycol is 1.3 ~ 1.4:1.
Step 2) described in the mass ratio of epoxy resin, ethylene glycol ether acetate and isocyanate terminated base polyurethane prepolymer for use as be 9.5 ~ 10:5 ~ 6:1.
The mass ratio of the polyurethane modified epoxy resin described in step 3), graphite, propylene glycol monomethyl ether acetate, tbp, propylene glycol monomethyl ether, polydimethylsiloxane, methacryloxypropyl silane, dyestuff is: 26 ~ 30:5 ~ 6:10 ~ 11:4 ~ 6:5 ~ 7:3 ~ 5:2 ~ 3:5 ~ 8.
Described dyestuff is a kind of in following substances: C.I. is directly black 166, and C.I. is directly black 19, and C.I. is directly black 168, C.I. acid yellow 23, C.I. Xylene Red 52, C.I. acid blue 9.
Beneficial effect of the present invention: the surface effects, the small-size effect that have due to nano-graphite, quantum effect and macro quanta tunnel effect, thus make nano-graphite material there is more excellent physical chemistry and surface and boundary and character compared with conventional blocky graphite material.Nano-graphite electrically conductive ink disclosed by the invention, due to adding of nano-graphite, makes ink have the advantages such as electroconductibility is strong, viscosity is little, fragility is little, elasticity is large, shock-resistance is good.
Embodiment
Embodiment 1
1) by the polyoxyethylene glycol of 10mol, heating vacuumizes dewaters to water-content≤0.2%, inflated with nitrogen protection after being cooled to 20 ~ 25 DEG C, regulate 80 ~ 85 DEG C of interior temperature, add the 2,4 toluene diisocyanate of 13mol, stirring reaction to-NCO content is≤4%, stopped reaction, is cooled to 20 ~ 25 DEG C, obtains isocyanate terminated base polyurethane prepolymer for use as;
2) in reaction, add the epoxy resin of 100g, add again the ethylene glycol ether acetate of 50g to dissolve completely, 75 ~ 80 DEG C of temperature in keeping, then add the isocyanate terminated base polyurethane prepolymer for use as of the 10g that step 1) arrives, reaction 2.5 ~ 3h, obtains polyurethane modified epoxy resin;
3) polyurethane modified epoxy resin of 30g is dissolved in to acetone, adding particle diameter is the 5g graphite of 7～8nm, add again 10g propylene glycol monomethyl ether acetate, 6g tbp, 5g propylene glycol monomethyl ether, 4g polydimethylsiloxane, 2.5g methacryloxypropyl silane, 6g C.I. direct black 166, after mixing, process 30 ~ 50min with ultrasonic oscillation again, obtain nano-graphite electrically conductive ink.
Embodiment 2
1) by the polyoxyethylene glycol of 10mol, heating vacuumizes dewaters to water-content≤0.2%, inflated with nitrogen protection after being cooled to 20 ~ 25 DEG C, regulate 80 ~ 85 DEG C of interior temperature, add the 2,4 toluene diisocyanate of 14mol, stirring reaction to-NCO content is≤4%, stopped reaction, is cooled to 20 ~ 25 DEG C, obtains isocyanate terminated base polyurethane prepolymer for use as;
2) in reaction, add 95g epoxy resin, then add 55g ethylene glycol ether acetate to dissolve completely, keep 75 ~ 80 DEG C of interior temperature, then add the isocyanate terminated base polyurethane prepolymer for use as of 10g, reaction 3h, obtains polyurethane modified epoxy resin;
3) polyurethane modified epoxy resin of 28g is dissolved in to acetone, adding particle diameter is the 6g graphite of 7～8nm, add again the C.I. direct black 19 of 10g propylene glycol monomethyl ether acetate, 4g tbp, 7g propylene glycol monomethyl ether, 3g polydimethylsiloxane, 2g methacryloxypropyl silane, 8g, after mixing, process 45min with ultrasonic oscillation again, obtain nano-graphite electrically conductive ink.
Claims (4)
1. a preparation method for nano-graphite electrically conductive ink, the steps include:
1) by polyoxyethylene glycol, heating vacuumizes dewaters to water-content≤0.2%, inflated with nitrogen protection after being cooled to 20 ~ 25 DEG C, in regulating, 80 ~ 85 DEG C of temperature, add 2,4 toluene diisocyanate, stirring reaction to-NCO content is≤4%, stopped reaction, is cooled to 20 ~ 25 DEG C, obtains isocyanate terminated base polyurethane prepolymer for use as;
2) in reaction, add epoxy resin, then add ethylene glycol ether acetate to dissolve completely, 75 ~ 80 DEG C of temperature in keeping, the more isocyanate terminated base polyurethane prepolymer for use as that adds step 1) to obtain, reaction 2.5 ~ 3h, obtains polyurethane modified epoxy resin;
3) by step 2) polyurethane modified epoxy resin of gained is dissolved in acetone, adding particle diameter is the graphite of 7～8nm, add again propylene glycol monomethyl ether acetate, tributyl phosphate, propylene glycol monomethyl ether, polydimethylsiloxane, methacryloxypropyl silane, dyestuff, after mixing, process 30 ~ 50min with ultrasonic oscillation again, obtain nano-graphite electrically conductive ink;
The mass ratio of the polyurethane modified epoxy resin described in step 3), graphite, propylene glycol monomethyl ether acetate, tributyl phosphate, propylene glycol monomethyl ether, polydimethylsiloxane, methacryloxypropyl silane, dyestuff is: 26 ~ 30:5 ~ 6:10 ~ 11:4 ~ 6:5 ~ 7:3 ~ 5:2 ~ 3:5 ~ 8.
2. the preparation method of a kind of nano-graphite electrically conductive ink according to claim 1, is characterized in that: the mol ratio of the 2,4 toluene diisocyanate described in step 1) and polyoxyethylene glycol is 1.3 ~ 1.4:1.
3. the preparation method of a kind of nano-graphite electrically conductive ink according to claim 1, is characterized in that: step 2) described in the mass ratio of epoxy resin, ethylene glycol ether acetate and isocyanate terminated base polyurethane prepolymer for use as be 9.5 ~ 10:5 ~ 6:1.
4. according to the preparation method of a kind of nano-graphite electrically conductive ink described in the arbitrary claim of claims 1 to 3, it is characterized in that: described dyestuff is a kind of in following substances: C.I. direct black 166, C.I. directly black 19, C.I. directly black 168, C.I. acid yellow 23, C.I. Xylene Red 52, C.I. acid blue 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210536362.3A CN103102742B (en) | 2012-12-12 | 2012-12-12 | Preparation method of nano graphite conductive ink |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210536362.3A CN103102742B (en) | 2012-12-12 | 2012-12-12 | Preparation method of nano graphite conductive ink |
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| Publication Number | Publication Date |
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| CN103102742A CN103102742A (en) | 2013-05-15 |
| CN103102742B true CN103102742B (en) | 2014-09-17 |
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| CN201210536362.3A Active CN103102742B (en) | 2012-12-12 | 2012-12-12 | Preparation method of nano graphite conductive ink |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106189525A (en) * | 2016-08-29 | 2016-12-07 | 苏州安洁科技股份有限公司 | A kind of electrically conductive ink for RFID antenna printing |
| CN106147385A (en) * | 2016-08-29 | 2016-11-23 | 苏州安洁科技股份有限公司 | A kind of radio frequency identification system printing conductive ink composition |
| CN107903714A (en) * | 2017-12-19 | 2018-04-13 | 朱宇浩 | A kind of electrically conductive ink and preparation method thereof |
| CN115595055A (en) * | 2022-10-28 | 2023-01-13 | 昆山威斯泰电子技术有限公司（Cn） | Conductive polyurethane coating, conductive film and preparation method of conductive polyurethane coating |
| CN116285501A (en) * | 2023-02-21 | 2023-06-23 | 华赫技术有限公司 | Preparation method of ink electric conductor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1524881A (en) * | 1975-07-07 | 1978-09-13 | Dick Co Ab | Printing ink |
| CN101528869A (en) * | 2006-06-30 | 2009-09-09 | 录象射流技术公司 | Ink jet ink composition and method for printing |
| CN101824133A (en) * | 2010-04-28 | 2010-09-08 | 天津大学 | Preparation method for waterborne polyurethane modified epoxy resin curing agent |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4964152B2 (en) * | 2005-03-04 | 2012-06-27 | インクテック カンパニー リミテッド | Conductive ink composition and method for producing the same |
-
2012
- 2012-12-12 CN CN201210536362.3A patent/CN103102742B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1524881A (en) * | 1975-07-07 | 1978-09-13 | Dick Co Ab | Printing ink |
| CN101528869A (en) * | 2006-06-30 | 2009-09-09 | 录象射流技术公司 | Ink jet ink composition and method for printing |
| CN101824133A (en) * | 2010-04-28 | 2010-09-08 | 天津大学 | Preparation method for waterborne polyurethane modified epoxy resin curing agent |
Non-Patent Citations (2)
| Title |
|---|
| 导电油墨的制备与性能研究;陈雷;《化学生物与工程》;20080731;第25卷(第7期);第1.2节 * |
| 陈雷.导电油墨的制备与性能研究.《化学生物与工程》.2008,第25卷(第7期),第25-27页. |
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