CN108841211A - A kind of inorganic zinc coating of modified graphene and preparation method thereof - Google Patents
A kind of inorganic zinc coating of modified graphene and preparation method thereof Download PDFInfo
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- CN108841211A CN108841211A CN201810608422.5A CN201810608422A CN108841211A CN 108841211 A CN108841211 A CN 108841211A CN 201810608422 A CN201810608422 A CN 201810608422A CN 108841211 A CN108841211 A CN 108841211A
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- modified graphene
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- inorganic zinc
- zinc coating
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Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
- C09D5/10—Anti-corrosive paints containing metal dust
- C09D5/106—Anti-corrosive paints containing metal dust containing Zn
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/24—Electrically-conducting paints
Abstract
The present invention relates to paint fields, and in particular to a kind of inorganic zinc coating of modified graphene and preparation method thereof, the coating are prepared by tri- kinds of components of A, B and C, and by weight, three kinds of groups are grouped as follows：A：- 50 parts of ethyl silicate 40；0.5-1.0 parts of modified graphene；B：5-10 parts of polyvinyl butyral；0.2-0.5 parts of silane coupling agent；C：40-55 parts of zinc powder；Above-mentioned modified graphene refer to can in pure and mild esters of silicon acis stable dispersion modified graphene.The modified graphene used in the coating is without being capable of the uniform and stable dispersion in alcoholic solvent in the case where adding surfactant, it overcomes graphene and is easy the shortcomings that reuniting in inorganic medium, enable modified graphene evenly dispersed in inorganic zinc coating, it improves the electric conductivity of coating and enhances the effect of coating exclusion of water, and then significantly improve the Corrosion Protection of coating.
Description
Technical field
The present invention relates to paint fields, and in particular to a kind of inorganic zinc coating of modified graphene and preparation method thereof.
Background technique
The corrosion of metal material, caused by a large amount of wasting of resources, the whole world is annual because losing caused by etching problem just now
Up to tens billion of dollars, so, the anti-corrosion method research of metal material always is an important field of research.Anticorrosive paint
It is a kind of most common anti-corrosion mode, but the type of anticorrosive paint, composition, performance, purposes are multifarious.Simple point
Coating can be divided into organic coating and inorganic coating by class.Due to containing a large amount of organic solvent, these solvents in organic coating
It evaporates into atmosphere, causes atmosphere pollution, seriously affect Environmental security and human health, therefore, traditional organic solvent type is anti-
Rotten coating is not more and more welcomed by the people, and the direction of anticorrosive paint towards inorganic type or water paint is developed.
Inorganic zinc coating is exactly a typical widely used coating, is also classified into aqueous and alcohol-soluble inorganic zinc-rich and applies
Material, aqueous inorganic paint is using the aqueous solution of alkali silicate as bonding agent, using metal zinc as the heavy antisepsis of antirust component
Coating.Whose property inorganic zinc coating has been completely free of the constraint of conventional organic solvents type anticorrosive paint, VOC emission zero, simultaneously
Also have it is easy for construction, antiseptic property is excellent, adhesive force is strong, weatherability, abrasion resistance, heat resistance, solvent-resisting, radiation resistance are strong
The advantages that, thus be widely used in alive structure, ship, bridge steel structure, heat-resisting material main priming paint.
Alcohol-soluble inorganic zinc coating is a kind of new coating to grow up on the basis of aqueous inorganic zinc-enriched coating,
In in addition to zinc powder, main ingredient be esters of silicon acis and polyvinyl butyral, can dissolve in ethanol, polyvinyl butyral
With good permeability and cementability, while there is good film forming, flexibility is painted after making film forming with superior soft
Toughness.Hydrolyzed after the esters of silicon acis moisture absorption, net polymer can be cross-linked to form with zinc powder, and further with polyvinyl butyral
In conjunction with greatly strengthening the adhesive force and film strength of coating, but its antiseptic property is still to be improved.
Summary of the invention
To solve the above problems, the present invention provides a kind of inorganic zinc coating and preparation method thereof of modified graphene, it should
Being added in coating can prevent the modified graphene of stable dispersion in alcoholic solvent compared to common inorganic zinc coating
Rotten performance is obviously improved.
A kind of inorganic zinc coating of modified graphene, by tri- kinds of component preparations of A, B and C, by weight, three kinds of group groupings
At as follows：
A：- 50 parts of ethyl silicate 40；0.5-1.0 parts of modified graphene；
B：5-10 parts of polyvinyl butyral；0.2-0.5 parts of silane coupling agent；
C：40-55 parts of zinc powder；
Above-mentioned modified graphene refer to can in pure and mild esters of silicon acis stable dispersion modified graphene.
Preferably, the modified graphene is the reaction using diazotising arylamine or ketoamine synthesis oxime to redox stone
The carboxyl of ink sheet layer structural edge and other unsaturated structures carry out the modified graphene after structural modification.
Preferably, the modified graphene refers to benzoic acid, benzene sulfonic acid, ethanol amine or C1~C5Chain fatty acid, ethanol amine or
C1~C5The modified graphene of chain fatty alcohol base group modification.
Preferably, the modified graphene is the modified graphene of benzoic acid, benzene sulfonic acid or ethanolamine group modification.
The present invention also provides the preparation methods of above-mentioned inorganic zinc coating, and this approach includes the following steps：
(1) modified graphene is added in silester, the solution of stirring to formation stable uniform is to get component A；
(2) silane coupling agent is added in polyvinyl butyral, is uniformly mixed, obtains component B；
(3) component B is added in component A, is stirring evenly and then adding into component C, continues to stir to get product.
Preferably, the zinc powder is the zinc powder of 800~1000 mesh.
The beneficial effects of the present invention are：The modified graphene used in coating is without the case where adding surfactant
Under can the uniform and stable dispersion in alcoholic solvent, overcome graphene and be easy the shortcomings that reuniting in inorganic medium, so that modified
Graphene can be evenly dispersed in inorganic zinc coating, improves the electric conductivity of coating and enhances the effect of coating exclusion of water,
And then significantly improve the Corrosion Protection of coating.
Specific embodiment
The present invention is further detailed with reference to embodiments.
Agents useful for same and material are the commercially available product that can be bought by commercial sources without specified otherwise in the present invention.
The preparation of embodiment 1, modified graphene
(1) 4-aminobenzoic acid 500mg, sodium nitrite 200mg are sequentially added in 100ml water, stirs 2h under ice bath；
(2) 6g1N hydrochloric acid is added under ice bath into reaction system, continues ice bath stirring 2h；
(3) redox graphene 1g is added in water, ultrasonic disperse 15min, then dispersion liquid is added to above-mentioned anti-
Answer ice bath stirring 3h in liquid；
(4) it stands overnight, filters, filter cake is washed to neutrality, with 60% ethanol washing filter cake 3 times, obtains product after dry
0.8g。
According to said method obtain benzoic acid, benzene sulfonic acid, a few class modified graphenes of the modified with functional group such as ethanol amine.
Embodiment 2, modified graphene inorganic zinc coating preparation
(1) by 1% addition silester of modified graphene peace total weight, concussion stirring is stablized until forming one
One solution obtains component A.
(2), the 0.3% of silane coupling agent peace total weight is added in polyvinyl butyral, is uniformly mixed, obtains
B。
(3), 1 is pressed:Component B is added in component A by 5 ratio, after mixing evenly, the component C (zinc of the weight such as addition
Powder), and be stirred continuously, the modified inorganic zinc coating of graphene is formed after 30 minutes.
The preservative challenge test of embodiment 3, graphene modified inorganic zinc-rich paint
(1), the processing of iron plate：The iron plate of 2cm*10cm is polished with angle grinder, until iron plate surface metal color is abundant,
Again with the corner angle of file polishing iron plate, then dried after being rinsed with dehydrated alcohol spare.
(2), the processing of coating：Each component of zinc-rich paint is mixed in proportion, is stirred evenly, is then allowed to stand 30 points
Clock.
(3), operation is brushed：Coating is picked with wool brush, is uniformly brushed on iron plate, hang airing 48 hours or more standby
With.
(4), dip operation：Sodium chloride solution is prepared by 3.5% concentration proportioning, then will vertically be impregnated brushed with coating iron plate
In sodium chloride solution, the corrosion condition of iron plate is observed.
According to immersion test record and observation, observe 500 hours time intervals, rust staining and rust staining occurs in metal
The case where size, conclusion are that three classes are added with the zinc-rich paint of modified graphene and are not added with the anti-of the zinc-rich paint of graphene
The strong and weak sequence of rotten performance is benzoic acid>Benzene sulfonic acid>Ethanol amine>It is not added with the inorganic zinc coating of graphene.
Claims (6)
1. a kind of inorganic zinc coating of modified graphene, by tri- kinds of component preparations of A, B and C, by weight, three kinds of groups are grouped as
It is as follows：
A：- 50 parts of ethyl silicate 40；0.5-1.0 parts of modified graphene；
B：5-10 parts of polyvinyl butyral；0.2-0.5 parts of silane coupling agent；
C：40-55 parts of zinc powder；
The modified graphene refer to can in pure and mild esters of silicon acis stable dispersion modified graphene.
2. inorganic zinc coating as described in claim 1, which is characterized in that the modified graphene is to utilize diazotising virtue
The reaction of amine or ketoamine synthesis oxime carries out structure to the carboxyl at redox graphite platelet structure edge and other unsaturated structures
Modified graphene after modification.
3. inorganic zinc coating as claimed in claim 2, which is characterized in that the modified graphene be benzoic acid, benzene sulfonic acid,
C1~C5Chain fatty acid, ethanol amine or C1~C5The modified graphene of chain fatty alcohol base group modification.
4. inorganic zinc coating as claimed in claim 3, which is characterized in that the modified graphene is benzoic acid, benzene sulfonic acid
Or the modified graphene of ethanolamine group modification.
5. inorganic zinc coating as described in claim 1, which is characterized in that the zinc powder is the zinc powder of 800~1000 mesh.
6. the preparation method of inorganic zinc coating described in any one of Claims 1 to 4 claim, includes the following steps：
(1) modified graphene is added in silester, the solution of stirring to formation stable uniform is to get component A；
(2) silane coupling agent is added in polyvinyl butyral, is uniformly mixed, obtains component B；
(3) component B is added in component A, is stirring evenly and then adding into component C, continues to stir to get product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810608422.5A CN108841211A (en) | 2018-06-13 | 2018-06-13 | A kind of inorganic zinc coating of modified graphene and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810608422.5A CN108841211A (en) | 2018-06-13 | 2018-06-13 | A kind of inorganic zinc coating of modified graphene and preparation method thereof |
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| CN108841211A true CN108841211A (en) | 2018-11-20 |
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| CN201810608422.5A Withdrawn CN108841211A (en) | 2018-06-13 | 2018-06-13 | A kind of inorganic zinc coating of modified graphene and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110205023A (en) * | 2019-06-21 | 2019-09-06 | 重庆市科学技术研究院 | With hydrophobic, antiseptic property composite Nano coating material and its preparation method and application |
| CN110591138A (en) * | 2019-08-20 | 2019-12-20 | 浙江工业大学 | Production method of antistatic PVC pipe |
| CN111864255A (en) * | 2019-04-28 | 2020-10-30 | 重庆市科学技术研究院 | Power battery and battery cloud platform management method |
| CN114106596A (en) * | 2021-11-12 | 2022-03-01 | 重庆三峡油漆股份有限公司 | Graphene water-based inorganic zinc-rich coating and preparation method thereof |
| CN116120773A (en) * | 2023-03-23 | 2023-05-16 | 中国南方电网有限责任公司超高压输电公司柳州局 | Anti-corrosion conductive material, preparation method thereof and grounding grid anti-corrosion conductive cement |
| CN116239901A (en) * | 2022-12-30 | 2023-06-09 | 上海华谊精细化工有限公司 | High-temperature-resistant heat-insulating flame-retardant corrosion-resistant environment-friendly inorganic graphene zinc-rich paint and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111864255A (en) * | 2019-04-28 | 2020-10-30 | 重庆市科学技术研究院 | Power battery and battery cloud platform management method |
| CN110205023A (en) * | 2019-06-21 | 2019-09-06 | 重庆市科学技术研究院 | With hydrophobic, antiseptic property composite Nano coating material and its preparation method and application |
| CN110591138A (en) * | 2019-08-20 | 2019-12-20 | 浙江工业大学 | Production method of antistatic PVC pipe |
| CN114106596A (en) * | 2021-11-12 | 2022-03-01 | 重庆三峡油漆股份有限公司 | Graphene water-based inorganic zinc-rich coating and preparation method thereof |
| CN116239901A (en) * | 2022-12-30 | 2023-06-09 | 上海华谊精细化工有限公司 | High-temperature-resistant heat-insulating flame-retardant corrosion-resistant environment-friendly inorganic graphene zinc-rich paint and preparation method thereof |
| CN116120773A (en) * | 2023-03-23 | 2023-05-16 | 中国南方电网有限责任公司超高压输电公司柳州局 | Anti-corrosion conductive material, preparation method thereof and grounding grid anti-corrosion conductive cement |
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Application publication date: 20181120 |
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