CN102010645A - Waterborne epoxy coating specially for nuclear power stations and preparation method thereof - Google Patents
Waterborne epoxy coating specially for nuclear power stations and preparation method thereof Download PDFInfo
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- CN102010645A CN102010645A CN 201010616383 CN201010616383A CN102010645A CN 102010645 A CN102010645 A CN 102010645A CN 201010616383 CN201010616383 CN 201010616383 CN 201010616383 A CN201010616383 A CN 201010616383A CN 102010645 A CN102010645 A CN 102010645A
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Abstract
The invention relates to a waterborne epoxy coating specially for nuclear power stations and a preparation method thereof. The coating is composed of a main agent and a curing agent, wherein the main agent comprises a waterborne amine additive product, deionized water, a film forming assistant, a pigment, a filler and various assistants; and the curing agent comprises waterborne epoxy emulsion, deionized water and part of the assistants. By using water as the main dispersion medium, the waterborne epoxy coating has low VOC (volatile organic compound) release amount and low odor, has little harm to human bodies, is not combustible, shows unique safety in the courses of storage, transportation and use, also has the advantage of being used for construction on the damp concrete substrate, effectively solves the problem that the harmful solvent released when the solvent type coating is adopted for construction on the airtight and damp underground buildings of the nuclear power station volatilize for a long term, eliminates the potential safety hazard caused by aggregation of a large quantity of harmful solvents and minimizes the harm to the physical and psychological health of the constructors, thus being an ideal protective decorative coating especially suitable for the underground airtight and damp environment.
Description
Technical field
The invention belongs to chemical technology field, be specifically related to a kind of nuclear power plant special-purpose aqueous epoxy paint and compound method thereof.
Background technology
At present, the used protective coating of nuclear island of nuclear power station zone concrete surface mainly is an epoxy resin coating in China, obtains widespread use owing to such coating has good anti-corrosion, chemical stability, reliable adhesion and radiation resistance.Epoxy resin coating mainly contains two kinds, and a kind of is the solvent-borne type epoxy coating, and another kind is an aqueous epoxy coating.The solvent-borne type epoxy coating is as main dispersing medium with organic solvent, at present in China's manufacturing process maturation, price is lower, every performance index are also better relatively, use more, but because wherein contained a large amount of organic solvent can discharge in air in significant period of time in construction process and after the construction, polluted air, it is healthy to influence the workmen, particularly for mostly being underground tier building greatly, the airtight humidity of environment, the nuclear island of the Nuclear power plants that solvent is difficult to distribute uses in building, tend to cause more hidden danger, thereby more and more recognize a fly in the ointment that it is serious in actual use; Aqueous epoxy coating is a kind of novel environment friendly coating that came out in recent years, be characterized in water as main dispersing medium, has low VOC burst size, low smell, little to human body harm, do not fire, store, all embodied its exclusive security in transportation and the use, and has an advantage such as can on the moist concrete ground, construct, than the decoration that is more suitable for nuclear island of nuclear power station zone concrete surface, but owing to be used for the coating products technical requirements height in nuclear island of nuclear power station zone, except the fundamental property and environmental requirement that must possess conventional coating, also need the analog D BA that requires by Ministry of Nuclear Industry to test, anti-irradiation test and detergency test, these test not only expense costliness, and illustrated require for the coating property that is used in the nuclear island of nuclear power station zone quite harsh, for example analog D BA test is the evaluation test of paint film under board design benchmark emergency conditions, the sample that this requirement of experiment scribbles paint film is elevated to about 160 ℃ by 40 ℃ fast in temperature within the 80-120S, under the high-temperature and high-pressure conditions more than the pressure 0.45MPa, along certain temperature, pressure curve tolerance 96 hours, paint film is non-foaming, do not come off, the difficulty of passing through is quite big, make domestic many companies thereby hang back, in addition, since with water as main dispersing medium, thereby also exist auxiliary agent to select and reasonable a series of problems such as adapted, these have all had a strong impact on the research and development that are suitable for nuclear island of nuclear power station zone use epoxy coating, cause nuclear island of nuclear power station zone use epoxy coating still not have moulding product at home so far and release.
Summary of the invention
The purpose of this invention is to provide a kind of environment-friendly type, every performance index all can reach the whole technical requirementss of Ministry of Nuclear Industry, be suitable for nuclear island of nuclear power station zone ornamental nuclear power plant special-purpose aqueous epoxy paint of concrete surface and compound method thereof.
Nuclear power plant special-purpose aqueous epoxy paint of the present invention is a two-component coating, form by host and solidifying agent two portions, host is made up of water-based amine affixture, deionized water, film coalescence aid, color stuffing and various auxiliary agent, and the solidifying agent agent is made up of epoxy emulsion, deionized water and part of auxiliary.The weight proportion of host and solidifying agent is 2: 1, and the formula rate of host and solidifying agent basal component is as follows:
Wherein: nuclear power plant special-purpose aqueous epoxy paint can make it film to have radiation hardness, high temperature high voltage resistant, easy characteristics such as decontamination, mainly is the filmogen by coating, i.e. epoxy emulsion and water-based amine affixture decision.
Epoxy emulsion is selected the emulsion kind of being made by low molecular weight liquid epoxy E-51 for use, as the EPI-REZ 3510-W-60 of U.S. HEXION company.
Water-based amine affixture is selected the compatible matching that helps promoting with epoxy emulsion for use, improve the amine affixture of integrally curing effect, film to the resistivity of various destructive factors to improve under high temperature, high pressure, the high humidity environment, as the EPICURE 8537-WY-60 of U.S. HEXION company.
Film coalescence aid has solublization, Resins, epoxy and solidifying agent are further reacted, improve cross-linking density, over-all properties is improved, can preferentially use and have stronger reduction surface tension effects and pigment wettability preferably, the propylene glycol ethers and the dipropylene glycol ether solvent that compare environmental protection simultaneously again, as: the propylene glycol butyl ether.
Pigment should be selected the material of stable performance for use, as Rutile type Titanium Dioxide JR-701.
Filler should be selected stable performance, material that oil number is low for use, as 400 order process whites.
Aqueous epoxy coating mainly is as dispersion medium with water, because the surface tension of water is higher, therefore, wetting, relatively poor to the wetting ability of base material to color stuffing needs to add wetting dispersing agent (as EFKA4560), base material wetting agent (as BYK-346) and flow agent low surface tension active substances such as (as BYK-381).And the affiliation that adds of tensio-active agent causes that foamy produces, and therefore, needs to add defoamer 1 (BYK-019), defoamer 2 (BYK-024).In addition, also need add anti-settling agent (as BP-188B) and thickening material (as BYK-425) improves stability in storage and application property; Add in-can preservation agent (as KATHONLXE) to avoid coating putrid and deteriorated in the process that stores and transport.
Every performance of the nuclear power plant special-purpose aqueous epoxy paint that the present invention proposes detects through relevant department, all meets or exceeds the performance requriements of Ministry of Nuclear Industry.
Nuclear power plant special-purpose aqueous epoxy paint of the present invention based on above-mentioned design, since with water as main dispersing medium, has low VOC burst size, low smell, little to human body harm, do not fire, store, all embodied its exclusive security in transportation and the use, and has an advantage such as can on the moist concrete ground, construct, it is airtight to efficiently solve long-term puzzlement Nuclear power plants, the problem that the hazardous solvent that discharges when adopting the solvent based coating construction on the moist hypogee can't volatilize away for a long time, not only can eliminate because a large amount of hazardous solvent is assembled the potential safety hazard that constitutes, and also of great advantage to workmen's physical and mental health.Therefore; succeeding in developing of nuclear power plant special-purpose aqueous epoxy paint of the present invention; be a big technological breakthrough of a special coating research aspect; though the whole formula system of nuclear power plant special-purpose aqueous epoxy paint of the present invention will than the solvent based coating complexity many; but from except that basic protection decoration functions with solvent based coating; also having can be airtight at nuclear island of nuclear power station; the original advantage of using in the moist underground multilayer special building environmental area; its technical advance and splendid practicality are justifiable, be a kind of be suitable for especially underground; the ideal protection decorative paint that uses in the airtight wet environment.
The Application Areas of the aqueous epoxy coating that the present invention proposes is not confined to Nuclear power plants, can also be extended to other aspects, as the decoration and the protection on concrete wall surface such as factory building, hospital, school, supermarket and ground.
Embodiment
The concrete prescription of implementing is listed as follows
The compound method of the nuclear power plant special-purpose aqueous epoxy paint that the present invention proposes is as follows:
Host: press formula ratio and add deionized water earlier, stir and slowly add anti-heavy auxiliary agent down, the about 10min of high speed dispersion is after be homogeneous thickness paste liquid, add water-based amine affixture, wetting dispersing agent and defoamer 1 and stir 15min, add color stuffing then, be uniformly dispersed the back with sand milling grind to fineness less than 40 μ m, remove by filter abrasive sand, add remaining defoamer 2, base material wetting agent, flow agent, film coalescence aid and thickening material, after deionized water adjustment solids constituent, filter and package and be host.
Solidifying agent: it is even with epoxy emulsion, deionized water, defoamer and in-can preservation agent blending dispersion to press formula ratio, and water filters and packages and is solidifying agent after adjusting solids constituent.
During use, nuclear power plant special-purpose aqueous epoxy paint of the present invention can be according to the construction practical situation, and thin up is to regulate working viscosity, and concrete dilution ratio is 5-15%, and two components are mixed the back and placed 15 minutes construction effect the bests.Form of construction work can adopt spraying, roller coating and brushing.The form of construction work difference, dilution ratio can be variant.
The preparation of the nuclear power plant special-purpose aqueous epoxy paint in the example of the present invention is carried out according to the compound method of above-mentioned introduction, and whole process of production is no abnormal.Product is joined lacquer in the ratio of weight proportion=2/1 of host/solidifying agent in use, stirs evenly then.According to practical situation, add water and adjust viscosity during construction, concrete dilution ratio is relevant with form of construction work, generally is controlled at 5-20%.Concrete dilution ratio is, is 15-20% during spraying, has good atomizing effect; 10-15% during brushing brushes respond well; 5-10% during roller coating, the plate surface state is good.Two components are mixed the back and are placed 15 minutes construction effect the bests.The coating that is made by example detects through relevant department, all meets or exceeds the performance requriements of Ministry of Nuclear Industry, and concrete data are seen institute's column data in the detection form.
Claims (10)
1. a nuclear power plant special-purpose aqueous epoxy paint is characterized in that being made up of host and solidifying agent two portions, and the weight proportion of host and solidifying agent is 2: 1, and the formula rate of host and solidifying agent basal component is as follows:
2. aqueous epoxy coating as claimed in claim 1 is characterized in that the emulsion kind that epoxy emulsion is made by low molecular weight liquid epoxy E-51.
3. aqueous epoxy coating as claimed in claim 1 is characterized in that described epoxy emulsion is the EPI-REZ 3510-W-60 of U.S. HEXION company.
4. aqueous epoxy coating as claimed in claim 1 is characterized in that described water-based amine affixture is the EPICURE 8537-WY-60 of U.S. HEXION company.
5. aqueous epoxy coating as claimed in claim 1 is characterized in that described film coalescence aid is the propylene glycol butyl ether.
6. aqueous epoxy coating as claimed in claim 1 is characterized in that described pigment is the Rutile type Titanium Dioxide JR-701 of stable performance; Filler is 400 low order process whites of stable performance, oil number.
7. aqueous epoxy coating as claimed in claim 1 is characterized in that described wetting dispersing agent is that EFKA 4560, base material wetting agent are that BYK-346, flow agent are BYK-381.
8. aqueous epoxy coating as claimed in claim 1 is characterized in that described defoamer 1 is BYK-024 for BYK-019, defoamer 2.
9. aqueous epoxy coating as claimed in claim 1 is characterized in that described anti-settling agent is that BP-188B, thickening material are BYK-425; The in-can preservation agent is KATHON LXE.
10. the compound method of a nuclear power plant special-purpose aqueous epoxy paint is characterized in that compound method is as follows:
A) host: press formula ratio and add deionized water earlier, stir and slowly add anti-heavy auxiliary agent down, high speed dispersion is after be homogeneous thickness paste liquid, add water-based amine affixture, wetting dispersing agent and defoamer 1 and stir, add color stuffing then, be uniformly dispersed the back with sand milling grind to fineness less than 40 μ m, remove by filter abrasive sand, add defoamer 2, base material wetting agent, flow agent, film coalescence aid and thickening material, after deionized water adjustment solids constituent, filter and package and be host;
B) solidifying agent: it is even with epoxy emulsion, deionized water, defoamer and in-can preservation agent blending dispersion to press formula ratio, and water filters and packages and is solidifying agent after adjusting solids constituent.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010616383 CN102010645B (en) | 2010-12-30 | 2010-12-30 | Waterborne epoxy coating specially for nuclear power stations and preparation method thereof |
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| CN 201010616383 CN102010645B (en) | 2010-12-30 | 2010-12-30 | Waterborne epoxy coating specially for nuclear power stations and preparation method thereof |
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| CN102010645B CN102010645B (en) | 2013-02-20 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102876194A (en) * | 2012-09-28 | 2013-01-16 | 中远关西涂料化工（天津）有限公司 | Waterborne epoxy coating for containers and preparation method of waterborne epoxy coating |
| CN103819999A (en) * | 2012-11-16 | 2014-05-28 | 季爱英 | Waterborne epoxy coating |
| CN104183287A (en) * | 2014-08-22 | 2014-12-03 | 苏州热工研究院有限公司 | Method for evaluating latent coating debris mass inside reactor building in loss of coolant accident |
| CN115651482A (en) * | 2022-11-04 | 2023-01-31 | 中远关西涂料（上海）有限公司 | High-gloss water-based epoxy coating for engineering machinery and preparation method thereof |
| CN115873474A (en) * | 2022-12-09 | 2023-03-31 | 中国核动力研究设计院 | Light shield top coating material for preventing Po-210 pollution on surfaces of walls and ceilings in nuclear facilities and application |
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| CN101235246A (en) * | 2008-02-02 | 2008-08-06 | 广州秀珀化工有限公司 | Epoxy coating system for nuclear power station |
| CN101245215A (en) * | 2008-02-02 | 2008-08-20 | 广州秀珀化工有限公司 | Radioresistant paint for nuclear power plant and manufacture method thereof |
| CN101255307A (en) * | 2007-12-03 | 2008-09-03 | 上海中远关西涂料化工有限公司 | Nuclear power plant special-purpose aqueous epoxy paint and preparation thereof |
| CN101781509A (en) * | 2010-01-18 | 2010-07-21 | 中国海洋石油总公司 | Two-component water epoxy radiation-resistant paint for nuclear power plant |
| CN101781508A (en) * | 2010-01-18 | 2010-07-21 | 中国海洋石油总公司 | Epoxy protective coating system for high-power nuclear power station |
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| CN101255307A (en) * | 2007-12-03 | 2008-09-03 | 上海中远关西涂料化工有限公司 | Nuclear power plant special-purpose aqueous epoxy paint and preparation thereof |
| CN101235246A (en) * | 2008-02-02 | 2008-08-06 | 广州秀珀化工有限公司 | Epoxy coating system for nuclear power station |
| CN101245215A (en) * | 2008-02-02 | 2008-08-20 | 广州秀珀化工有限公司 | Radioresistant paint for nuclear power plant and manufacture method thereof |
| CN101781509A (en) * | 2010-01-18 | 2010-07-21 | 中国海洋石油总公司 | Two-component water epoxy radiation-resistant paint for nuclear power plant |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102876194A (en) * | 2012-09-28 | 2013-01-16 | 中远关西涂料化工（天津）有限公司 | Waterborne epoxy coating for containers and preparation method of waterborne epoxy coating |
| CN102876194B (en) * | 2012-09-28 | 2015-06-03 | 中远关西涂料化工（天津）有限公司 | Waterborne epoxy coating for containers and preparation method of waterborne epoxy coating |
| CN103819999A (en) * | 2012-11-16 | 2014-05-28 | 季爱英 | Waterborne epoxy coating |
| CN104183287A (en) * | 2014-08-22 | 2014-12-03 | 苏州热工研究院有限公司 | Method for evaluating latent coating debris mass inside reactor building in loss of coolant accident |
| CN115651482A (en) * | 2022-11-04 | 2023-01-31 | 中远关西涂料（上海）有限公司 | High-gloss water-based epoxy coating for engineering machinery and preparation method thereof |
| CN115873474A (en) * | 2022-12-09 | 2023-03-31 | 中国核动力研究设计院 | Light shield top coating material for preventing Po-210 pollution on surfaces of walls and ceilings in nuclear facilities and application |
| CN115873474B (en) * | 2022-12-09 | 2023-11-28 | 中国核动力研究设计院 | Light cover coating material for preventing pollution of wall and ceiling surface Po-210 in nuclear facilities and application |
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| CN102010645B (en) | 2013-02-20 |
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