CN105331273A - CNT (Carbon Nano Tube)-containing polyurethane single-component water-based coating and preparation method thereof - Google Patents
CNT (Carbon Nano Tube)-containing polyurethane single-component water-based coating and preparation method thereof Download PDFInfo
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- CN105331273A CN105331273A CN201510833619.5A CN201510833619A CN105331273A CN 105331273 A CN105331273 A CN 105331273A CN 201510833619 A CN201510833619 A CN 201510833619A CN 105331273 A CN105331273 A CN 105331273A
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Abstract
The invention discloses CNT (Carbon Nano Tube)-containing polyurethane single-component water-based coating. The CNT-containing polyurethane single-component water-based coating is prepared from the following components in parts by mass: 1.0 to 5.0 parts of CNT, 6.0 to 10.0 parts of isophthalic acid, 12.0 to 20.0 parts of pentaerythritol, 30.0 to 38.0 parts of soya fatty acid, 0.1 to 1.0 part of dibutyltin dilaurate, 15.0 to 20.0 parts of unsaturated fatty acid, 4.0 to 8.0 parts of dimethylol propionic acid, 15.0 to 20.0 parts of isophorone diisocyanate, 0.1 to 1.0 part of triethylamine and 0.1 to 1.0 part of methyl ethyl ketoxime. The invention also discloses a method for preparing the CNT-containing polyurethane single-component water-based coating. The CNT-containing polyurethane single-component water-based coating disclosed by the invention has good anti-static performance, can be applied to some electronic equipment and components and is capable of effectively preventing static charge accumulation.
Description
Technical field
The present invention relates to field of polymer composite material, single-component water-based coating of urethane particularly relating to a kind of carbon nanotubes and preparation method thereof.
Background technology
Along with the fast development of electronic industry and information industry, the application of macromolecular material in electronics is more and more extensive, there is the macromolecular material of high-insulativity, when its surface is rubbed or clashes into, be easy to produce and accumulation electrostatic, electromagnetic interference can be caused, particularly seriously, when accumulation of static electricity to a certain extent time, will static discharge be produced, cause inflammable, explosive substance is on fire or blast, cause huge serious accident.All kinds of electronic machine is widely used in all trades and professions, while the work and life of giving people bring convenience, also creates consequent Electromagnetic Interference.Can affect the normal work of electronics by Electromagnetic Interference, and antistatic coating has conduction and get rid of accumulate static charge ability, can solve the problem of this respect.
A large amount of antistatic coating used generally adds the function that certain conductive filler material realizes conduction in nonconducting binder resin at present.Apply more conductive filler material and mainly contain graphite, metal-powder (silver, copper, nickel), wherein comparatively early, it has stable chemical nature to silver powder Application and Development, and non-corrosibility is strong, the advantages such as good conductivity, but it is expensive.Graphite low price, raw material is easy to get, and conductivity is also relatively good, but addition is large.Carbon nanotube, due to the structure of its uniqueness and application prospect, since 1991 are found, has received increasing concern.Because the electronics of flowing is subject to quantum confinement in carbon nanotube, usually can only axially move at same layer, motion radially will be very restricted, therefore carbon nanotube inherence macroscopically shows excellent conductivity, have again larger length-to-diameter ratio, and loading level is low, is thus well suited for doing conductive filler material simultaneously, be applied to paint field, the performance of conventional coatings can be made to get a promotion and give its new function.
Aqueous polyurethane coating is a kind of environmentally friendly macromolecular material, will become the development trend of following paint industry, has the wide market space, and single-component water-based polyurethane coating has environmental protection and the simple advantage of construction.
Application number is that the Chinese patent of CN200610078563.8 discloses " manufacture method of nanotube coating ", carbon nanotube is dissolved or dispersed in a large amount of low boiling point organic solvent by this patent, be deployed into carbon nanotube diluent, and then mix with coating stoste further, afterwards low boiling point solvent removing is obtained suitable carbon nano-tube coating, the use of the method low boiling point organic solvent easily causes the environmental pollution in production process.Application number is that the Chinese patent application of CN200710046904.8 discloses " a kind of water polyurethane electric conduction paint containing carbon nano-tube and preparation method thereof ", this patent adopts the aqueous polyurethane dispersion being prepared carbon nanotubes by self-emulsification, high-speed stirring obtains described electrically conducting coating, and method is comparatively complicated.
Summary of the invention
The object of the present invention is to provide for the deficiencies in the prior art, providing a kind of take carbon nanotube as single-component water-based polyurethane electrostatic resistance coating of antistatic filler and preparation method thereof.
In order to solve the problem of above-mentioned technology, the technical solution used in the present invention is: a kind of single-component water-based coating of urethane of carbon nanotubes, comprises following composition by massfraction:
Preferably, a kind of single-component water-based coating of urethane of carbon nanotubes, comprises following composition by massfraction:
Preferably, described carbon nanotube is particle diameter 50 ~ 200nm, the carbon nanotube that length is 5 ~ 20 μm.
Preferably, described soy(a)-bean oil fatty acid acid number is 195 ~ 204mgKOH/g.
Preferably, described unsaturated fatty acids is octadecenoic acid or octadecadienoic acid or punicic acid.
Present invention also offers a kind of method preparing the single-component water-based coating of urethane of above-mentioned carbon nanotubes, specifically comprise the following steps:
A 1.0 ~ 5.0 parts of carbon nanotubes are put into dense H by ()
2sO
4and HNO
3mixed solution (volume ratio is 3:1) in, under ultra-sonic oscillation and mechanical agitation, process 2 ~ 6h, then with deionized water wash to neutral.
B 6.0 ~ 10.0 parts of m-phthalic acids, 12.0 ~ 20.0 parts of tetramethylolmethanes, 30.0 ~ 38.0 parts of soy(a)-bean oil fatty acids, 15.0 ~ 20.0 parts of unsaturated fatty acidss add in reactor and carry out polycondensation 6 ~ 10h, obtain Synolac by ().
C resin that step (b) obtains by () joins in N-Methyl pyrrolidone, add 0.1 ~ 1.0 part of dibutyl tin laurate and 4.0 ~ 8.0 parts of dimethylol propionic acids again at 100 ~ 120 DEG C of reaction 2 ~ 6h, be cooled to 75 DEG C and add 15.0 ~ 20.0 parts of isophorone diisocyanates, reaction 1 ~ 3h is continued, obtained water soluble alkyd resin at 110 DEG C.
D water soluble alkyd resin that 1.0 ~ 5.0 of step (a) parts of carbon nanotubes and step (c) obtain by (), 0.1 ~ 1.0 part of triethylamine, 0.1 ~ 1.0 part of methyl ethyl ketoxime adds in Cone crusher, dispersion grinding 1 ~ 3h, obtains the single-component water-based polyurethane electrostatic resistance coating of carbon nanotubes.
The present invention uses carbon nanotube to be antistatic filler, be scattered in single-component water-based polyaminoester emulsion, preparation has the coating of antistatic property, operating procedure is simple, the addition of functional stuffing carbon nanotube is few, the good stability of product, pollution-free, environmental friendliness, can be used for the aspects such as electronics, building, automobile.
Embodiment
Embodiment 1:
1.0 parts of carbon nanotubes are put into dense H by 1
2sO
4and HNO
3mixed solution (volume ratio is 3:1) in, under ultra-sonic oscillation and mechanical agitation, process 3h, then uses a large amount of deionized water wash to neutral.
7.0 parts of m-phthalic acids, 13.0 parts of tetramethylolmethanes, 30.0 parts of soy(a)-bean oil fatty acids, 17.0 parts of octadecenoic acids to add in reactor and carry out polycondensation 6h by 2, obtain Synolac.
3 resins step 2 obtained join in N-Methyl pyrrolidone, add 0.2 part of dibutyl tin laurate and 4.0 parts of dimethylol propionic acids again at 110 DEG C of reaction 2h, be cooled to 75 DEG C and add 15.0 parts of isophorone diisocyanates, continue reaction 3h at 110 DEG C, obtained water soluble alkyd resin.
4 water soluble alkyd resins 1.0 of step 1 parts of carbon nanotubes and step 3 obtained, 0.1 part of triethylamine, 0.2 part of methyl ethyl ketoxime adds in Cone crusher, dispersion grinding 1.5h, obtains the single-component water-based polyurethane electrostatic resistance coating of carbon nanotubes.
Embodiment 2:
2.0 parts of carbon nanotubes are put into dense H by 1
2sO
4and HNO
3mixed solution (volume ratio is 3:1) in, under ultra-sonic oscillation and mechanical agitation, process 2h, then uses a large amount of deionized water wash to neutral.
6.0 parts of m-phthalic acids, 15.0 parts of tetramethylolmethanes, 32.0 parts of soy(a)-bean oil fatty acids, 16.0 parts of octadecadienoic acids to add in reactor and carry out polycondensation 7h by 2, obtain Synolac.
3 resins step 2 obtained join in N-Methyl pyrrolidone, add 0.3 part of dibutyl tin laurate and 6.0 parts of dimethylol propionic acids again at 100 DEG C of reaction 6h, be cooled to 75 DEG C and add 16.0 parts of isophorone diisocyanates, continue reaction 2h at 110 DEG C, obtained water soluble alkyd resin.
4 water soluble alkyd resins 2.0 of step 1 parts of carbon nanotubes and step 3 obtained, 0.2 part of triethylamine, 0.3 part of methyl ethyl ketoxime adds in Cone crusher, dispersion grinding 3h, obtains the single-component water-based polyurethane electrostatic resistance coating of carbon nanotubes.
Embodiment 3:
4.0 parts of carbon nanotubes are put into dense H by 1
2sO
4and HNO
3mixed solution (volume ratio is 3:1) in, under ultra-sonic oscillation and mechanical agitation, process 4h, then uses a large amount of deionized water wash to neutral.
9.0 parts of m-phthalic acids, 18.0 parts of tetramethylolmethanes, 36.0 parts of soy(a)-bean oil fatty acids, 18.0 parts of punicic acids to add in reactor and carry out polycondensation 8h by 2, obtain Synolac.
3 resins step 2 obtained join in N-Methyl pyrrolidone, add 0.5 part of dibutyl tin laurate and 7.0 parts of dimethylol propionic acids again at 120 DEG C of reaction 2.5h, be cooled to 75 DEG C and add 20.0 parts of isophorone diisocyanates, reaction 1h is continued, obtained water soluble alkyd resin at 110 DEG C.
4 water soluble alkyd resins 4.0 of step 1 parts of carbon nanotubes and step 3 obtained, 0.7 part of triethylamine, 0.6 part of methyl ethyl ketoxime adds in Cone crusher, dispersion grinding 2h, obtains the single-component water-based polyurethane electrostatic resistance coating of carbon nanotubes.
Embodiment 4:
5.0 parts of carbon nanotubes are put into dense H by 1
2sO
4and HNO
3mixed solution (volume ratio is 3:1) in, under ultra-sonic oscillation and mechanical agitation, process 6h, then uses a large amount of deionized water wash to neutral.
10.0 parts of m-phthalic acids, 20.0 parts of tetramethylolmethanes, 37.0 parts of soy(a)-bean oil fatty acids, 19.0 parts of octadecenoic acids to add in reactor and carry out polycondensation 7h by 2, obtain Synolac.
3 resins step 2 obtained join in N-Methyl pyrrolidone, add 0.6 part of dibutyl tin laurate and 4.5 parts of dimethylol propionic acids again at 115 DEG C of reaction 3h, be cooled to 75 DEG C and add 19.0 parts of isophorone diisocyanates, continue reaction 2h at 110 DEG C, obtained water soluble alkyd resin.
4 water soluble alkyd resins 5.0 of step 1 parts of carbon nanotubes and step 3 obtained, 0.8 part of triethylamine, 0.3 part of methyl ethyl ketoxime adds in Cone crusher, dispersion grinding 1.5h, obtains the single-component water-based polyurethane electrostatic resistance coating of carbon nanotubes.
Embodiment 5:
4.0 parts of carbon nanotubes are put into dense H by 1
2sO
4and HNO
3mixed solution (volume ratio is 3:1) in, under ultra-sonic oscillation and mechanical agitation, process 5h, then uses a large amount of deionized water wash to neutral.
9.0 parts of m-phthalic acids, 18.0 parts of tetramethylolmethanes, 38.0 parts of soy(a)-bean oil fatty acids, 16.0 parts of punicic acids to add in reactor and carry out polycondensation 10h by 2, obtain Synolac.
3 resins step 2 obtained join in N-Methyl pyrrolidone, add 0.2 part of dibutyl tin laurate and 4.0 parts of dimethylol propionic acids again at 110 DEG C of reaction 4h, be cooled to 75 DEG C and add 18.0 parts of isophorone diisocyanates, continue reaction 3h at 110 DEG C, obtained water soluble alkyd resin.
4 water soluble alkyd resins 4.0 of step 1 parts of carbon nanotubes and step 3 obtained, 0.6 part of triethylamine, 0.5 part of methyl ethyl ketoxime adds in Cone crusher, dispersion grinding 1.5h, obtains the single-component water-based polyurethane electrostatic resistance coating of carbon nanotubes.
Embodiment 6:
3.5 parts of carbon nanotubes are put into dense H by 1
2sO
4and HNO
3mixed solution (volume ratio is 3:1) in, under ultra-sonic oscillation and mechanical agitation, process 5h, then uses a large amount of deionized water wash to neutral.
9.0 parts of m-phthalic acids, 17.0 parts of tetramethylolmethanes, 31.0 parts of soy(a)-bean oil fatty acids, 18.0 parts of octadecadienoic acids to add in reactor and carry out polycondensation 10h by 2, obtain Synolac.
3 resins step 2 obtained join in N-Methyl pyrrolidone, add 0.8 part of dibutyl tin laurate and 4.0 parts of dimethylol propionic acids again at 105 DEG C of reaction 5h, be cooled to 75 DEG C and add 17.0 parts of isophorone diisocyanates, continue reaction 3h at 110 DEG C, obtained water soluble alkyd resin.
4 water soluble alkyd resins 3.5 of step 1 parts of carbon nanotubes and step 3 obtained, 0.1 part of triethylamine, 0.2 part of methyl ethyl ketoxime adds in Cone crusher, dispersion grinding 3h, obtains the single-component water-based polyurethane electrostatic resistance coating of carbon nanotubes.
Performance test data corresponding to each embodiment is in table 1
Table 1
Above the technical scheme that the embodiment of the present invention provides is described in detail, apply specific case herein to set forth the principle of the embodiment of the present invention and embodiment, the explanation of above embodiment is only applicable to the principle helping to understand the embodiment of the present invention; Meanwhile, for one of ordinary skill in the art, according to the embodiment of the present invention, embodiment and range of application all will change, and in sum, this description should not be construed as limitation of the present invention.
Claims (6)
1. the single-component water-based coating of the urethane of carbon nanotubes, is characterized in that, comprises following composition by mass fraction:
2. the single-component water-based coating of urethane of a kind of carbon nanotubes according to claim 1, is characterized in that:
3. the single-component water-based coating of urethane of a kind of carbon nanotubes according to claim 1, is characterized in that: described carbon nanotube is particle diameter 50 ~ 200nm, the carbon nanotube that length is 5 ~ 20 μm.
4. the single-component water-based coating of urethane of a kind of carbon nanotubes according to claim 1, is characterized in that: described soy(a)-bean oil fatty acid acid number is 195 ~ 204mgKOH/g.
5. the single-component water-based coating of urethane of a kind of carbon nanotubes according to claim 1, is characterized in that: described unsaturated fatty acids is octadecenoic acid or octadecadienoic acid or punicic acid.
6. prepare a method for the single-component water-based coating of urethane of carbon nanotubes as claimed in any one of claims 1 to 5, wherein, it is characterized in that, comprise the following steps:
A 1.0 ~ 5.0 parts of carbon nanotubes are put into dense H by ()
2sO
4and HNO
3mixed solution (volume ratio is 3:1) in, under ultra-sonic oscillation and mechanical agitation, process 2 ~ 6h, then with deionized water wash to neutral;
B 6.0 ~ 10.0 parts of m-phthalic acids, 12.0 ~ 20.0 parts of tetramethylolmethanes, 30.0 ~ 38.0 parts of soy(a)-bean oil fatty acids, 15.0 ~ 20.0 parts of unsaturated fatty acidss add in reactor and carry out polycondensation 6 ~ 10h, obtain Synolac by ();
C resin that step (b) obtains by () joins in N-Methyl pyrrolidone, add 0.1 ~ 1.0 part of dibutyl tin laurate and 4.0 ~ 8.0 parts of dimethylol propionic acids again at 100 ~ 120 DEG C of reaction 2 ~ 6h, be cooled to 75 DEG C and add 15.0 ~ 20.0 parts of isophorone diisocyanates, reaction 1 ~ 3h is continued, obtained water soluble alkyd resin at 110 DEG C;
D water soluble alkyd resin that 1.0 ~ 5.0 of step (a) parts of carbon nanotubes and step (c) obtain by (), 0.1 ~ 1.0 part of triethylamine, 0.1 ~ 1.0 part of methyl ethyl ketoxime adds in Cone crusher, dispersion grinding 1 ~ 3h, obtains the single-component water-based polyurethane electrostatic resistance coating of carbon nanotubes.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510833619.5A CN105331273A (en) | 2015-11-25 | 2015-11-25 | CNT (Carbon Nano Tube)-containing polyurethane single-component water-based coating and preparation method thereof |
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|---|---|---|---|
| CN201510833619.5A CN105331273A (en) | 2015-11-25 | 2015-11-25 | CNT (Carbon Nano Tube)-containing polyurethane single-component water-based coating and preparation method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006307174A (en) * | 2005-03-30 | 2006-11-09 | Mitsui Chemicals Polyurethanes Inc | Two-component curable aqueous urethane-alkyd resin composition and use thereof |
| CN101165127A (en) * | 2007-10-11 | 2008-04-23 | 同济大学 | Water polyurethane electric conduction paint containing carbon nano-tube and preparation method thereof |
| CN103740252A (en) * | 2013-12-17 | 2014-04-23 | 澳达树熊涂料(惠州)有限公司 | Antistatic waterborne polyurethane coating and preparation method thereof |
-
2015
- 2015-11-25 CN CN201510833619.5A patent/CN105331273A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006307174A (en) * | 2005-03-30 | 2006-11-09 | Mitsui Chemicals Polyurethanes Inc | Two-component curable aqueous urethane-alkyd resin composition and use thereof |
| CN101165127A (en) * | 2007-10-11 | 2008-04-23 | 同济大学 | Water polyurethane electric conduction paint containing carbon nano-tube and preparation method thereof |
| CN103740252A (en) * | 2013-12-17 | 2014-04-23 | 澳达树熊涂料(惠州)有限公司 | Antistatic waterborne polyurethane coating and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 周学良: "《精细化学产品手册》", 31 May 2002 * |
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Application publication date: 20160217 |
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