CN105238190A - Electric insulation coating - Google Patents
Electric insulation coating Download PDFInfo
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- CN105238190A CN105238190A CN201510775733.7A CN201510775733A CN105238190A CN 105238190 A CN105238190 A CN 105238190A CN 201510775733 A CN201510775733 A CN 201510775733A CN 105238190 A CN105238190 A CN 105238190A
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Abstract
The invention provides an electric insulation coating. The electric insulation coating is prepared by the following method which comprises the steps that step one, modified carbon nanotubes are prepared; step two, modified epoxy resin is prepared; step three, the modified carbon nanotubes, the modified epoxy resin, a solvent, zinc oxide, polyvinyl alcohol, hydroxypropyl cellulose, acrylic resin, silica sol and a surfactant are mixed evenly. The electric insulation coating is sprayed on the surface of electrical equipment and has the advantages of good adhesion and good insulation effect.
Description
Technical field
The invention provides a kind of electric insulation coating.
Background technology
A lot of electric power facility all needs to do insulation processing at present, prevents the generation of electric shock accidents; Such as general high-rise or heavy construction or industrial enterprise power supply is transported to power distribution cabinet by transformer, is transported to floor factory building by power distribution cabinet more at present.The power transmission busbar that each power unit adopts generally adopts assembled, and this kind of bus duct has following two point defects: 1, in order to keep good radiating effect, the insulating spacer adopted between copper bar and copper bar is all greatly thicker, cause bus bulky, large from weight, occupy a large amount of locus, give construction and fixedly bring great difficulty.Therefore need to design other insulation mode a kind of to assist and do insulation processing.
Summary of the invention
The invention provides a kind of electric insulation coating, this electric insulation paint spay-coating has the good advantage of insulation effect on electric power facility surface.
Technical scheme:
A kind of electric insulation coating, prepares by the following method:
1st step: by weight, under condition of ice bath, is added drop-wise to dimethyl sulfoxide (DMSO) 10 ~ 12 parts in aluminum chloride 15 ~ 20 parts, and after dropwising, heating makes aluminum chloride dissolve, and obtains aluminum trichloride solution; Again polyvinyl alcohol 40 ~ 50 parts and carbon nanotube 18 ~ 25 parts are mixed in dimethyl sulfoxide (DMSO) 100 ~ 150 parts, join after mixing in aluminum trichloride solution, react; After reaction terminates, with the mixing solutions of methyl alcohol and dilute hydrochloric acid, the solid formation in reaction system is washed, then by solid formation at 30 ~ 40 DEG C after drying under reduced pressure 12 ~ 24h, be added in back taper stainless steel fluidized-bed and sprayed, spray into titanate coupling agent 2 ~ 4 parts, obtain modified carbon nano-tube;
2nd step: the preparation method of modified epoxy is as follows: by weight, 3-methyl catechol 40 ~ 60 parts, tartronic acid 20 ~ 30 parts, m-trifluoromethyl phenol 15 ~ 25 parts and 4,4 '-dihydroxybiphenyl 30 ~ 50 parts is even with the aqueous solution of Epicholorohydrin 130 ~ 180 parts, alkali metal hydroxide, reacting by heating, after reaction terminates, evaporation of solvent, add benzene class or ketones solvent, after adding water washing again, removing aqueous phase, is evaporated to organic phase and does and obtain modified epoxy;
3rd step: modified carbon nano-tube, modified epoxy, solvent 800 ~ 1000 parts, 30 ~ 50 parts, zinc oxide, polyvinyl alcohol 30 ~ 50 parts, hydroxypropylcellulose 10 ~ 30 parts, acrylic resin 80 ~ 100 parts, silicon sol 50 ~ 70 parts, 20 ~ 30 parts, tensio-active agent are mixed.
In the 1st described step, carbon nanotube is multi-walled carbon nano-tubes, and caliber is 10 ~ 50nm, and pipe range is 0.5 ~ 100 μm.
In the 1st described step, reaction times 4 ~ 6h.
In the 1st described step, described methyl alcohol and the volume ratio of dilute hydrochloric acid are 1:3 ~ 5.
In the 1st described step, the mass concentration of described hydrochloric acid is 10 ~ 12wt%.
In the 3rd described step, solvent is any one or multiple mixing in toluene, dimethylbenzene, ether, ethylene glycol monomethyl ether and butyl glycol ether.
In the 3rd described step, tensio-active agent be any one or multiple mixing in BYK-021, BYK-028 and BYK-220S.
In the 2nd described step, 3 ~ 6 hours reaction times.
In the 2nd described step, temperature of reaction 80 ~ 90 DEG C.
In the 2nd described step, the usage quantity of alkali metal hydroxide relative to the total amount of hydroxyl groups 1 mole in 4 kinds of monomers at 1.2 ~ 1.5 moles; Described alkali metal hydroxide is selected from NaOH or KOH.
Beneficial effect
Insulation compound of the present invention is sprayed on power equipment surface, has the advantage that sticking power is good, insulation effect is good.
Embodiment
Embodiment 1
Insulation compound makes by the following method.
1st step: by weight, under condition of ice bath, is added drop-wise to dimethyl sulfoxide (DMSO) 10 parts in aluminum chloride 15 parts, and after dropwising, heating makes aluminum chloride dissolve, and obtains aluminum trichloride solution; By polyvinyl alcohol 50 parts, (carbon nanotube is multi-walled carbon nano-tubes with carbon nanotube again, caliber is 10 ~ 50nm, and pipe range is 0.5 ~ 100 μm) 25 parts be mixed in dimethyl sulfoxide (DMSO) 100 parts, join after mixing in aluminum trichloride solution, react, reaction times 6h; After reaction terminates, with the mixing solutions of methyl alcohol and dilute hydrochloric acid, the solid formation in reaction system is washed, described methyl alcohol and the volume ratio of dilute hydrochloric acid are 1:5, the mass concentration of described hydrochloric acid is 12wt%, then by solid formation at 40 DEG C after drying under reduced pressure 24h, be added in back taper stainless steel fluidized-bed and sprayed, spray into titanate coupling agent 2 parts, obtain modified carbon nano-tube;
2nd step: the preparation method of modified epoxy is as follows: by weight, 3-methyl catechol 40 parts, tartronic acid 30 parts, m-trifluoromethyl phenol 15 parts and 4, the aqueous solution of 4 '-dihydroxybiphenyl 50 parts and Epicholorohydrin 180 parts, alkali metal hydroxide is even, the usage quantity of alkali metal hydroxide relative to the total amount of hydroxyl groups 1 mole in 4 kinds of monomers at 1.3 moles; Described alkali metal hydroxide is selected from NaOH or KOH, reacting by heating, 6 hours reaction times, temperature of reaction 90 DEG C, after reaction terminates, evaporation of solvent, adds benzene class or ketones solvent, after adding water washing again, removing aqueous phase, is evaporated to organic phase and does and obtain modified epoxy;
3rd step: modified carbon nano-tube, modified epoxy, dimethylbenzene 1000 parts, 50 parts, zinc oxide, polyvinyl alcohol 50 parts, hydroxypropylcellulose 30 parts, acrylic resin 100 parts, silicon sol 70 parts, 20 parts, BYK-021 tensio-active agent are mixed.
Reference examples 1
Be with the difference of embodiment 1: carbon nanotube is without modification.
1st step: the preparation method of modified epoxy is as follows: by weight, 3-methyl catechol 40 parts, tartronic acid 30 parts, m-trifluoromethyl phenol 30 parts and 4, the aqueous solution of 4 '-dihydroxybiphenyl 50 parts and Epicholorohydrin 180 parts, alkali metal hydroxide is even, the usage quantity of alkali metal hydroxide relative to the total amount of hydroxyl groups 1 mole in 4 kinds of monomers at 1.3 moles; Described alkali metal hydroxide is selected from NaOH or KOH, reacting by heating, 6 hours reaction times, temperature of reaction 90 DEG C, after reaction terminates, evaporation of solvent, adds benzene class or ketones solvent, after adding water washing again, removing aqueous phase, is evaporated to organic phase and does and obtain modified epoxy;
2nd step: (carbon nanotube is multi-walled carbon nano-tubes by carbon nanotube, caliber is 10 ~ 50nm, and pipe range is 0.5 ~ 100 μm) 25 parts, modified epoxy, dimethylbenzene 1000 parts, 50 parts, zinc oxide, polyvinyl alcohol 50 parts, hydroxypropylcellulose 30 parts, acrylic resin 100 parts, silicon sol 70 parts, 20 parts, BYK-021 tensio-active agent mix.
Reference examples 2
Be with the difference of embodiment 1: in the preparation process of modified epoxy, do not add monomer m-trifluoromethyl phenol.
1st step: by weight, under condition of ice bath, is added drop-wise to dimethyl sulfoxide (DMSO) 10 parts in aluminum chloride 15 parts, and after dropwising, heating makes aluminum chloride dissolve, and obtains aluminum trichloride solution; By polyvinyl alcohol 50 parts, (carbon nanotube is multi-walled carbon nano-tubes with carbon nanotube again, caliber is 10 ~ 50nm, and pipe range is 0.5 ~ 100 μm) 25 parts be mixed in dimethyl sulfoxide (DMSO) 100 parts, join after mixing in aluminum trichloride solution, react, reaction times 6h; After reaction terminates, with the mixing solutions of methyl alcohol and dilute hydrochloric acid, the solid formation in reaction system is washed, described methyl alcohol and the volume ratio of dilute hydrochloric acid are 1:5, the mass concentration of described hydrochloric acid is 12wt%, then by solid formation at 40 DEG C after drying under reduced pressure 24h, be added in back taper stainless steel fluidized-bed and sprayed, spray into titanate coupling agent 2 parts, obtain modified carbon nano-tube;
2nd step: the preparation method of modified epoxy is as follows: by weight, 3-methyl catechol 40 parts, tartronic acid 30 parts and 4, the aqueous solution of 4 '-dihydroxybiphenyl 50 parts and Epicholorohydrin 180 parts, alkali metal hydroxide is even, the usage quantity of alkali metal hydroxide relative to the total amount of hydroxyl groups 1 mole in 3 kinds of monomers at 1.3 moles; Described alkali metal hydroxide is selected from NaOH or KOH, reacting by heating, 6 hours reaction times, temperature of reaction 90 DEG C, after reaction terminates, evaporation of solvent, adds benzene class or ketones solvent, after adding water washing again, removing aqueous phase, is evaporated to organic phase and does and obtain modified epoxy;
3rd step: modified carbon nano-tube, modified epoxy, dimethylbenzene 1000 parts, 50 parts, zinc oxide, polyvinyl alcohol 50 parts, hydroxypropylcellulose 30 parts, acrylic resin 100 parts, silicon sol 70 parts, 20 parts, BYK-021 tensio-active agent are mixed.
By above-mentioned paint spay-coating in aluminum sample board surface, carry out the high bake of 30 seconds at 120 DEG C ~ 140 DEG C, the insulating coating film plate that thickness is 0.8 ~ 2 μm can be obtained.
| Embodiment 1 | Reference examples 1 | Reference examples 2 | |
| Tack/level | 0 grade | 1 grade | 1 grade |
| Snappiness/mm | 1 | 2 | 2 |
| Interlamination resistance mm2 | 330.2 | 298.4 | 312.6 |
As can be seen from the above table, the insulation compound in above embodiment has good sticking power, also has larger insulativity in addition; Due to not to carbon nano-tube modification in reference examples 1, can cause loss of adhesion; Owing to not adding monomer trifloro methyl phenol in modified epoxy in reference examples 2, result in interlamination resistance rate and decline, make insulativity bad.
Claims (4)
1. an electric insulation coating, it is characterized in that: described insulation compound prepares by the following method: the 1st step: by weight, under condition of ice bath, dimethyl sulfoxide (DMSO) 10 ~ 12 parts is added drop-wise in aluminum chloride 15 ~ 20 parts, after dropwising, heating makes aluminum chloride dissolve, and obtains aluminum trichloride solution; Again polyvinyl alcohol 40 ~ 50 parts and carbon nanotube 18 ~ 25 parts are mixed in dimethyl sulfoxide (DMSO) 100 ~ 150 parts, join after mixing in aluminum trichloride solution, react; After reaction terminates, with the mixing solutions of methyl alcohol and dilute hydrochloric acid, the solid formation in reaction system is washed, then by solid formation at 30 ~ 40 DEG C after drying under reduced pressure 12 ~ 24h, be added in back taper stainless steel fluidized-bed and sprayed, spray into titanate coupling agent 2 ~ 4 parts, obtain modified carbon nano-tube; 2nd step: the preparation method of modified epoxy is as follows: by weight, 3-methyl catechol 40 ~ 60 parts, tartronic acid 20 ~ 30 parts, m-trifluoromethyl phenol 15 ~ 25 parts and 4,4 '-dihydroxybiphenyl 30 ~ 50 parts is even with the aqueous solution of Epicholorohydrin 130 ~ 180 parts, alkali metal hydroxide, reacting by heating, after reaction terminates, evaporation of solvent, add benzene class or ketones solvent, after adding water washing again, removing aqueous phase, is evaporated to organic phase and does and obtain modified epoxy; 3rd step: modified carbon nano-tube, modified epoxy, solvent 800 ~ 1000 parts, 30 ~ 50 parts, zinc oxide, polyvinyl alcohol 30 ~ 50 parts, hydroxypropylcellulose 10 ~ 30 parts, acrylic resin 80 ~ 100 parts, silicon sol 50 ~ 70 parts, 20 ~ 30 parts, tensio-active agent are mixed.
2. electric insulation coating according to claim 1, is characterized in that: in the 1st described step, carbon nanotube is multi-walled carbon nano-tubes, and caliber is 10 ~ 50nm, and pipe range is 0.5 ~ 100 μm; , reaction times 4 ~ 6h; , described methyl alcohol and the volume ratio of dilute hydrochloric acid are 1:3 ~ 5; , the mass concentration of described hydrochloric acid is 10 ~ 12wt%.
3. electric insulation coating according to claim 1, is characterized in that: in the 3rd described step, and solvent is any one or multiple mixing in toluene, dimethylbenzene, ether, ethylene glycol monomethyl ether and butyl glycol ether; Tensio-active agent be any one or multiple mixing in BYK-021, BYK-028 and BYK-220S.
4. electric insulation coating according to claim 1, is characterized in that: in the 2nd described step, 3 ~ 6 hours reaction times; Temperature of reaction 80 ~ 90 DEG C; The usage quantity of alkali metal hydroxide relative to the total amount of hydroxyl groups 1 mole in 4 kinds of monomers at 1.2 ~ 1.5 moles; Described alkali metal hydroxide is selected from NaOH or KOH.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510775733.7A CN105238190A (en) | 2015-11-15 | 2015-11-15 | Electric insulation coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510775733.7A CN105238190A (en) | 2015-11-15 | 2015-11-15 | Electric insulation coating |
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| CN105238190A true CN105238190A (en) | 2016-01-13 |
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| CN201510775733.7A Pending CN105238190A (en) | 2015-11-15 | 2015-11-15 | Electric insulation coating |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108410287A (en) * | 2018-04-17 | 2018-08-17 | 晋江瑞碧科技有限公司 | Outer coating compositions of a kind of recyclable enameled wire of high dielectric and preparation method thereof |
Citations (5)
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| CN102061121A (en) * | 2010-12-06 | 2011-05-18 | 老虎粉末涂料制造（太仓）有限公司 | Environmental-protection anti-corrosive heat-dissipation powder paint, and preparation method and application thereof |
| CN102558765A (en) * | 2010-12-15 | 2012-07-11 | 新高电子材料（中山）有限公司 | Halogen-free fire-retardant high heat conducting insulating resin composition and heat dissipation metal-base copper clad plate |
| CN104672911A (en) * | 2015-03-03 | 2015-06-03 | 矽照光电（厦门）有限公司 | Preparation method of carbon nanotube doped weather-proof heat conductive silicone grease for LED |
| CN104761272A (en) * | 2015-05-04 | 2015-07-08 | 李孟平 | Carbon filer heat insulating material preparing method |
| CN105337227A (en) * | 2015-10-30 | 2016-02-17 | 国网山东省电力公司东营供电公司 | Copper bar insulating cover in power transmission bus duct |
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2015
- 2015-11-15 CN CN201510775733.7A patent/CN105238190A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102061121A (en) * | 2010-12-06 | 2011-05-18 | 老虎粉末涂料制造（太仓）有限公司 | Environmental-protection anti-corrosive heat-dissipation powder paint, and preparation method and application thereof |
| CN102558765A (en) * | 2010-12-15 | 2012-07-11 | 新高电子材料（中山）有限公司 | Halogen-free fire-retardant high heat conducting insulating resin composition and heat dissipation metal-base copper clad plate |
| CN104672911A (en) * | 2015-03-03 | 2015-06-03 | 矽照光电（厦门）有限公司 | Preparation method of carbon nanotube doped weather-proof heat conductive silicone grease for LED |
| CN104761272A (en) * | 2015-05-04 | 2015-07-08 | 李孟平 | Carbon filer heat insulating material preparing method |
| CN105337227A (en) * | 2015-10-30 | 2016-02-17 | 国网山东省电力公司东营供电公司 | Copper bar insulating cover in power transmission bus duct |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108410287A (en) * | 2018-04-17 | 2018-08-17 | 晋江瑞碧科技有限公司 | Outer coating compositions of a kind of recyclable enameled wire of high dielectric and preparation method thereof |
| CN108410287B (en) * | 2018-04-17 | 2020-06-05 | 武夷学院 | High-dielectric recyclable enameled wire outer paint composition and preparation method thereof |
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Application publication date: 20160113 |