CN105238230A - Anticorrosive and wear-resistant coating containing aqueous epoxy resin, and preparation method thereof - Google Patents
Anticorrosive and wear-resistant coating containing aqueous epoxy resin, and preparation method thereof Download PDFInfo
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- CN105238230A CN105238230A CN201510644939.6A CN201510644939A CN105238230A CN 105238230 A CN105238230 A CN 105238230A CN 201510644939 A CN201510644939 A CN 201510644939A CN 105238230 A CN105238230 A CN 105238230A
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Abstract
The invention discloses an anticorrosive and wear-resistant coating containing aqueous epoxy resin. The coating comprises a component A and a component B according to a mass ratio of (5-10):1, wherein the component A comprises, by mass, 30-50% of the aqueous epoxy resin, 10-20% of a film forming assistant, 25-58% of a ceramic powder mixture, 1-5% of a flash rust assistant and 1-5% of a hydrolysis-resistant silane coupling agent; and the component B is a nitrogen-containing emulsible curing agent. The coating has the characteristics of good wear resistance and good corrosion resistance, and has the advantages of easily available raw materials and low price. The invention also discloses a preparation method of the anticorrosive and wear-resistant coating containing the aqueous epoxy resin.
Description
Technical field
The invention belongs to paint field, be specifically related to a kind of water-base epoxy pottery anticorrosion antiwear two-component coating, particularly one is applied to oil pipeline, ship deck, needs the coating in anticorrosion, wear-resisting field.
Background technology
Coating is important metal protection measure.General coating by resin, filler, auxiliary agent, solvent composition.Due to the existence of solvent, in construction and the process of producing, easily cause solvent evaporates and contaminate environment.Therefore developing non-volatility solvent, take water as the emphasis that the environment-friendly type coating of solvent becomes at present and in the future.
In all kinds of water-borne coatings, epoxy water-borne coatings causes the concern of people with good corrosion resistance.The aqueous epoxy coating of current use is generally with epoxy ester or epoxy resin for skeleton, be can self-emulsifying, and the epoxy resin of other structure of emulsification seems particularly important further by epoxy resin modification.
Introducing in the method for emulsifying agent to epoxy resin, one is introduced by epoxy reaction, and this method is with loss and sacrifice a large amount of epoxy group(ing) for cost, and epoxy resin also loses good antiseptic property; Another is exactly the hydroxyl utilized in epoxy backbone; polar group and aquation is introduced further again by forming epoxy ester; this mode, owing to introducing water-soluble group, makes epoxy resin water tolerance reduce, and therefore erosion resistance and the protective value to metal significantly reduce.
In some occasions, except requiring that coating has except environmental protection, anti-corrosion function, also have some special requirements, such as coating is wear-resisting, but the wear resisting property of aqueous epoxy resins itself is limited, is difficult to reach the performance that people wish.
In the stupalith had been found that, because hardness is high, there is good wear resisting property, such as silicon nitride, aluminium nitride, aluminium sesquioxide, and some inorganic silicate mineral, such as, containing aluminosilicate, as kaolin (Al
4[Si
4o
10] [OH]
8), white mica (KAl
2[AlSi
3o
8] [OH]
2) etc., in antiseptic property, some phosphoric acid salt then show very outstanding, such as aluminum phosphate, zinc phosphate etc.
Silane coupling agent is important interface modification material, but general coupling agent is easily hydrolyzed and gel in aqueous environments, makes water-borne coatings lose retention, can not use as the auxiliary agent of coating after adding.And modification coupling agent is the problem considered, the speed of coupling agent and water reaction and sterically hindered relevant on atom silicon, introducing suitable steric hindrance, by reducing the hydrolysis rate of coupling agent, being conducive to the use of coupling agent in water.
Water-borne coatings because moisture, with the process of metallic contact not yet film forming, will speed up corrosion of metal, metallic surface is produced and dodges rust.Therefore, water-borne coatings will control the sudden strain of a muscle rust problem in drying and forming-film process.
Wear resisting property except with resin, outside the Pass filler has, also have close relationship with solidifying agent.
Different from solvent type epoxy resin, use aqueous epoxy curing agent, except will having snappiness, also will have the emulsifying property in water.Meanwhile, also should there is good consistency with the epoxy resin of Water-borne modification, and adopt water-soluble nitrogen-containing organic compound, although can solidify with aqueous epoxy resins, such as diethylenetriamine, but because poor compatibility, affect physics and the chemical property of coating by there will be layering.Therefore, need to control the fusion performance between aqueous epoxy resin curing agent and epoxy resin, an important thinking is exactly the HLB value of transformation epoxy curing agent, and epoxy hardener is entered in the emulsified particles of epoxy resin.
Aqueous wear-resistant coating in sum, need to solve epoxy resin emulsification, solidifying agent is compatible, dodges rust and between filler and resin, the coupling problem between resin and metallic surface.
Summary of the invention
The object of the invention is, in order to overcome above-mentioned prior art Problems existing, to provide a kind of ceramic corrosion-resistant abrasion coating and preparation method of aquosity epoxy resin.
For achieving the above object, the present invention adopts the method adding aqueous epoxy resins and hydrolysis silane coupling agent, improves the physical and chemical performance of coating.Meanwhile, utilize ceramics powder to strengthen anticorrosion and wear resisting property, and in conjunction with workability, take into full account coating and base material effect, ceramic particle and resin effect, the composition of the ceramic corrosion-resistant abrasion coating of a kind of aquosity epoxy resin of design studies.
The present invention realizes the technical scheme that object adopts:
A kind of ceramic corrosion-resistant abrasion coating of aquosity epoxy resin, by component A and B component A:B=(5-10) in mass ratio: 1 forms, wherein component A is 30-50% by aqueous epoxy resins by mass percentage, film coalescence aid is 10-20%, ceramic powder mixture is 25-58%, dodging rust auxiliary agent is 1-5%, and hydrolysis silane coupling agent is 1-5% composition; B component is nitrogenous emulsifying property solidifying agent.
Described water-base epoxy cow tree fat, refers to by Acrylic Acid Monomer, and under the initiation of dicumyl peroxide initiator, on the methylene radical of epoxy resin, introduce acrylic molecules, and then add N, N dimethyl ethanol neutralizes, and its process and structure are:
Its first step temperature of reaction controls at 80 DEG C, and the reaction times is 3-4h; Second step reaction is carried out at normal temperatures, and its method is joined by N, N dimethyl ethanol in the product of the first step acquisition; Obtain product for emulsifying agent with second step, join in epoxy resin, its mass ratio is epoxy resin E44: epoxy resin emulsifying agent: water=3:1:1.
Described ceramic powder mixture is by Al
2o
3, zinc phosphate and aluminum phosphate composition, its mixing quality is than for Al
2o
3: zinc phosphate: aluminum phosphate=2:3:5.
Described film coalescence aid is made up of ethanol, butanols and butyl glycol ether, and its mixing quality is than being ethanol: butanols: butyl glycol ether=10:4:1.
Described sudden strain of a muscle rust auxiliary agent is by benzisothiazole, phthalimide, first class imidazoles and ammonium caprylate mixture, and its mixing quality is than being benzisothiazole: phthalimide: first class imidazoles: ammonium caprylate=10:2:1:1.
The solidifying agent of described part B refers to and first generates acid by Diels-Alder reaction, and its process and structural representation are:
Its temperature of reaction is 100 DEG C, and the reaction times is 3h, and then adds polyamine, and form the solidifying agent of emulsifying water, its reaction process is:
Wherein n > 2, temperature of reaction is 800 DEG C, and the reaction times is 4h.
Described hydrolysis silane coupling agent refers to the coupling agent containing alkyl group on the Siliciumatom of silane coupling agent, and its molecular structure is:
Wherein R is alkyl, and its carbonatoms is 1-7.
For achieving the above object, another technical scheme of the present invention is:
A preparation method for the ceramic corrosion-resistant abrasion coating of aquosity epoxy resin, comprises the steps:
1, the film coalescence aid in component A, ceramic powder mixture and sudden strain of a muscle rust auxiliary agent are carried out proportioning in mass ratio respectively, mix, for subsequent use;
2, under the rotating speed of the temperature of 50 DEG C and 1000r/min, being placed on by ceramic powder mixture and three-roll grinder is ground to particle diameter is 0.1-5 μm;
3, by the aqueous epoxy resins in component A, film coalescence aid, ceramic powder mixture, dodges rust auxiliary agent and hydrolysis silane coupling agent mixes by mass percentage, filters, obtains component A;
4, component A and B component are mixed according to mass ratio, obtain the ceramic corrosion-resistant abrasion coating of aquosity epoxy resin.
The present invention compared with prior art, the feature had and beneficial effect mainly:
1, adopt aqueous epoxy resins, replace volatile solvent with water, decrease the pollution to environment.
2, adopt hydrolysis silane coupling agent, effectively reduce the hydrolysis rate of coupling agent in water.
3, adopt hybrid ceramic powder, in conjunction with workability, take into full account ceramic particle and resin effect, strengthen anticorrosion and wear resisting property.
4, the salt fog time of coating of the present invention can reach 6000h, and abrasion can reach 1g/1000r.Compared with prior art, increase.
Embodiment
Below in conjunction with specific embodiment, set forth the present invention further.Should be understood that these embodiments only for illustration of and be not used in and limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application equally and depend on claims limited range after the content of having read the present invention's instruction.
Embodiment 1
One, the formula of composition
1, be mixed with film auxiliary agent, hybrid ceramic powder according to mixing quality ratio respectively and dodge rust auxiliary agent;
2, compositions formulated component A content by mass percentage:
3, compositions formulated content: A:B=10:1 in mass ratio.
Two, preparation method
By proportioning, the film coalescence aid in component A, ceramic powder mixture and sudden strain of a muscle rust auxiliary agent are carried out mixing with for subsequent use respectively; Under the rotating speed of the temperature of 50 DEG C and 1000r/min, being placed on by ceramic powder mixture and three-roll grinder is ground to particle diameter is 0.1-5 μm; By the aqueous epoxy resins in component A, film coalescence aid, ceramic powder mixture, dodges rust auxiliary agent, after hydrolysis silane coupling agent proportionally mixes, filters and pack with for subsequent use; The A be equipped with and B component are proportionally mixed, obtains the ceramic corrosion-resistant abrasion coating of aquosity epoxy resin.
Three, beneficial effect
The present embodiment resulting composition, detecting its salt fog time by salt-fog test is 4500h, wears away as 5g/1000r.
Embodiment 2
One, the formula of composition
1, film auxiliary agent, ceramic powder mixture and sudden strain of a muscle rust auxiliary agent is mixed with according to mixing quality ratio respectively;
2, compositions formulated component A content by mass percentage:
3, compositions formulated content: A:B=5:1 in mass ratio.
Two, preparation method is with embodiment 1
Three, beneficial effect
The present embodiment resulting composition, detecting its salt fog time by salt-fog test is 6000h, wears away as 1g/1000r.
Embodiment 3
One, the formula of composition
1, film auxiliary agent, ceramic powder mixture and sudden strain of a muscle rust auxiliary agent is mixed with according to mixing quality ratio respectively;
2, compositions formulated component A content by mass percentage:
3, compositions formulated content: A:B=6:1 in mass ratio.
Two, preparation method is with embodiment 1
Three, beneficial effect
The present embodiment resulting composition, detecting its salt fog time by salt-fog test is 4670h, wears away as 4.7g/1000r.
Embodiment 4
One, the formula of composition
1, film auxiliary agent, ceramic powder mixture and sudden strain of a muscle rust auxiliary agent is mixed with according to mixing quality ratio respectively;
2, compositions formulated component A content by mass percentage:
3, compositions formulated content: A:B=7:1 in mass ratio.
Two, preparation method is with embodiment 1
Three, beneficial effect
The present embodiment resulting composition, detecting its salt fog time by salt-fog test is 4860h, wears away as 4.3g/1000r.
Embodiment 5
One, the formula of composition
1, film auxiliary agent, ceramic powder mixture and sudden strain of a muscle rust auxiliary agent is mixed with according to mixing quality ratio respectively;
2, compositions formulated component A content by mass percentage:
3, compositions formulated content: A:B=8:1 in mass ratio.
Two, preparation method is with embodiment 1
Three, beneficial effect
The present embodiment resulting composition, detecting its salt fog time by salt-fog test is 4950h, wears away as 4g/1000r.
Embodiment 6
One, the formula of composition
1, film auxiliary agent, ceramic powder mixture and sudden strain of a muscle rust auxiliary agent is mixed with according to mixing quality ratio respectively;
2, compositions formulated component A content by mass percentage:
3, compositions formulated content: A:B=9:1 in mass ratio.
Two, preparation method is with embodiment 1
Three, beneficial effect
The present embodiment resulting composition, detecting its salt fog time by salt-fog test is 5190h, wears away as 3.7g/1000r.
Embodiment 7
One, the formula of composition
1, film auxiliary agent, ceramic powder mixture and sudden strain of a muscle rust auxiliary agent is mixed with according to mixing quality ratio respectively;
2, compositions formulated component A content by mass percentage:
3, compositions formulated content: A:B=6.5:1 in mass ratio.
Two, preparation method is with embodiment 1
Three, beneficial effect
The present embodiment resulting composition, detecting its salt fog time by salt-fog test is 5360h, wears away as 3.2g/1000r.
Embodiment 8
One, the formula of composition
1, film auxiliary agent, ceramic powder mixture and sudden strain of a muscle rust auxiliary agent is mixed with according to mixing quality ratio respectively;
2, compositions formulated component A content by mass percentage:
3, compositions formulated content: A:B=7.5:1 in mass ratio.
Two, preparation method is with embodiment 1
Three, beneficial effect
The present embodiment resulting composition, detecting its salt fog time by salt-fog test is 5580h, wears away as 2.6g/1000r.
Embodiment 9
One, the formula of composition
1, film auxiliary agent, ceramic powder mixture and sudden strain of a muscle rust auxiliary agent is mixed with according to mixing quality ratio respectively;
2, compositions formulated component A content by mass percentage:
3, compositions formulated content: A:B=8.5:1 in mass ratio.
Two, preparation method is with embodiment 1
Three, beneficial effect
The present embodiment resulting composition, detecting its salt fog time by salt-fog test is 5750h, wears away as 1.9g/1000r.
Embodiment 10
One, the formula of composition
1, film auxiliary agent, ceramic powder mixture and sudden strain of a muscle rust auxiliary agent is mixed with according to mixing quality ratio respectively;
2, compositions formulated component A content by mass percentage:
3, compositions formulated content: A:B=9.5:1 in mass ratio.
Two, preparation method is with embodiment 1
Three, beneficial effect
The present embodiment resulting composition, detecting its salt fog time by salt-fog test is 5920h, wears away as 1.3g/1000r.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. the ceramic corrosion-resistant abrasion coating of an aquosity epoxy resin, it is characterized in that: by component A and B component A:B=(5-10) in mass ratio: 1 forms, wherein component A is 30-50% by aqueous epoxy resins by mass percentage, film coalescence aid is 10-20%, ceramic powder mixture is 25-58%, dodging rust auxiliary agent is 1-5%, and hydrolysis silane coupling agent is 1-5% composition; B component is nitrogenous emulsifying property solidifying agent.
2. the ceramic corrosion-resistant abrasion coating of a kind of aquosity epoxy resin according to claim 1, it is characterized in that: described water-base epoxy cow tree fat, refer to and pass through Acrylic Acid Monomer, under the initiation of dicumyl peroxide initiator, on the methylene radical of epoxy resin, introduce acrylic molecules, and then add N, N dimethyl ethanol neutralizes, and its process and molecular structure are:
Its first step temperature of reaction controls at 80 DEG C, and the reaction times is 3-4h; Second step reaction is carried out at normal temperatures, and its method is joined by N, N dimethyl ethanol in the product of the first step acquisition; Obtain product for emulsifying agent with second step, join in epoxy resin, its mass ratio is epoxy resin E44: epoxy resin emulsifying agent: water=3:1:1.
3. the ceramic corrosion-resistant abrasion coating of a kind of aquosity epoxy resin according to claim 1, is characterized in that: described ceramic powder mixture is by Al
2o
3, zinc phosphate and aluminum phosphate composition, its mixing quality is than for Al
2o
3: zinc phosphate: aluminum phosphate=2:3:5.
4. the ceramic corrosion-resistant abrasion coating of a kind of aquosity epoxy resin according to claim 1, it is characterized in that: described film coalescence aid is made up of ethanol, butanols and butyl glycol ether, its mixing quality is than being ethanol: butanols: butyl glycol ether=10:4:1.
5. the ceramic corrosion-resistant abrasion coating of a kind of aquosity epoxy resin according to claim 1, it is characterized in that: described sudden strain of a muscle rust auxiliary agent is the mixture of benzisothiazole, phthalimide, first class imidazoles and ammonium caprylate, and its mixing quality is than being benzisothiazole: phthalimide: first class imidazoles: ammonium caprylate=10:2:1:1.
6. the ceramic corrosion-resistant abrasion coating of a kind of aquosity epoxy resin according to claim 1, is characterized in that: the solidifying agent of described B component refers to and first generates acid by Diels-Alder reaction, and its process and structure are:
Its temperature of reaction is 100 DEG C, and the reaction times is 3h, and then adds polyamine, and form the solidifying agent of emulsifying water, its reaction process is:
Wherein n > 2, temperature of reaction is 800 DEG C, and the reaction times is 4h.
7. the ceramic corrosion-resistant abrasion coating of a kind of aquosity epoxy resin according to claim 1, is characterized in that: described hydrolysis silane coupling agent refers to the coupling agent containing alkyl group on the Siliciumatom of silane coupling agent, and its molecular structure is:
Wherein R is alkyl, and its carbonatoms is 1-7.
8. a preparation method for the ceramic corrosion-resistant abrasion coating of a kind of aquosity epoxy resin according to claim 1, is characterized in that: comprise the steps:
(1) film coalescence aid in component A, ceramic powder mixture and sudden strain of a muscle rust auxiliary agent are carried out proportioning in mass ratio respectively, mix, for subsequent use;
(2) under the rotating speed of the temperature of 50 DEG C and 1000r/min, being placed on by ceramic powder mixture and three-roll grinder is ground to particle diameter is 0.1-5 μm;
(3) by the aqueous epoxy resins in component A, film coalescence aid, ceramic powder mixture, dodges rust auxiliary agent and hydrolysis silane coupling agent mixes by mass percentage, filters, obtains component A;
(4) component A and B component are mixed according to mass ratio, obtain the ceramic corrosion-resistant abrasion coating of aquosity epoxy resin.
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Cited By (5)
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|---|---|---|---|---|
| CN105907240A (en) * | 2016-05-13 | 2016-08-31 | 江苏科技大学 | Aqueous epoxy anti-corrosion paint containing flash-rust inhibitors and preparation method thereof |
| CN106566383A (en) * | 2016-11-14 | 2017-04-19 | 江苏科技大学 | Waterborne organic-inorganic hybrid corrosion-resistant coating containing compound coupling agent and preparation method thereof |
| CN107987672A (en) * | 2017-12-11 | 2018-05-04 | 湖南太子化工涂料有限公司 | A kind of dual-component coating and its preparation method and application |
| CN109163149A (en) * | 2018-09-21 | 2019-01-08 | 山东国铭球墨铸管科技有限公司 | A kind of liner epoxy Ceramic Balls ink cast iron multiple tube and its manufacturing method |
| CN114806330A (en) * | 2022-04-13 | 2022-07-29 | 山东七维新材料有限公司 | High-salt-fog-resistance and high-weather-resistance two-component water-based primer-topcoat integrated coating and preparation method thereof |
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| CN105907240A (en) * | 2016-05-13 | 2016-08-31 | 江苏科技大学 | Aqueous epoxy anti-corrosion paint containing flash-rust inhibitors and preparation method thereof |
| CN105907240B (en) * | 2016-05-13 | 2019-06-21 | 江苏科技大学 | A kind of water corrosion-resistant epoxy paint and preparation method thereof containing anti-flash rusting agent |
| CN106566383A (en) * | 2016-11-14 | 2017-04-19 | 江苏科技大学 | Waterborne organic-inorganic hybrid corrosion-resistant coating containing compound coupling agent and preparation method thereof |
| CN106566383B (en) * | 2016-11-14 | 2019-08-23 | 江苏科技大学 | The aqueous organic inorganic hybridization anticorrosive paint and preparation method of the coupling agent containing compounding |
| CN107987672A (en) * | 2017-12-11 | 2018-05-04 | 湖南太子化工涂料有限公司 | A kind of dual-component coating and its preparation method and application |
| CN109163149A (en) * | 2018-09-21 | 2019-01-08 | 山东国铭球墨铸管科技有限公司 | A kind of liner epoxy Ceramic Balls ink cast iron multiple tube and its manufacturing method |
| CN109163149B (en) * | 2018-09-21 | 2020-01-03 | 山东国铭球墨铸管科技有限公司 | Lining epoxy ceramic nodular cast iron composite pipe and manufacturing method thereof |
| CN114806330A (en) * | 2022-04-13 | 2022-07-29 | 山东七维新材料有限公司 | High-salt-fog-resistance and high-weather-resistance two-component water-based primer-topcoat integrated coating and preparation method thereof |
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Effective date of registration: 20191125 Address after: 064400 No. 565, Chuangxin Road, Qian'an high tech Industrial Development Zone, Tangshan City, Hebei Province Patentee after: Yi Yuan (Qian'an) new Mstar Technology Ltd Address before: Meng Xi Road 212003 Zhenjiang city of Jiangsu province Jingkou District No. 2 Patentee before: Jiangsu University of Science and Technology |