CN101245215B - Radioresistant paint for nuclear power plant and manufacture method thereof - Google Patents
Radioresistant paint for nuclear power plant and manufacture method thereof Download PDFInfo
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- CN101245215B CN101245215B CN2008100263001A CN200810026300A CN101245215B CN 101245215 B CN101245215 B CN 101245215B CN 2008100263001 A CN2008100263001 A CN 2008100263001A CN 200810026300 A CN200810026300 A CN 200810026300A CN 101245215 B CN101245215 B CN 101245215B
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Abstract
The invention relates to a radiation resistant coating used in nuclear power station and a preparation method thereof, in particular to a preparation method of radiation resistant and protective coating used in equipment and facilities in the nuclear power station radiation area. The application of the radiation resistant coating in nuclear power station is that: first, titanium dioxide, iron oxide red, calcium carbonate, talc and potassium titanate whisker are prepared into radiation resistant filler; then epoxy resin, reactive diluent, radiation resistant filler, addition agent, etc. are evenly mixed and stirred in a thinning tank, and A component is prepared by the grinding of a three roll mill; B component modified amine curing agent is added according to proportion when in use, and roller coating or spray coating and other construction method are adopted to coat the radiation resistant coating on the construction wall surface or the floor to be used in the shielding protection of buildings built in places and equipment where nuclear radiation of nuclear power station exists. The radiation resistance coating prepared by the method has no toxicity, low cost, safe using, good radiation resistant property, good temperature resistant property, and excellent decontamination; when the thickness of a coating layer is 80 Mum, the coating layer is intact in 8.5 multiplied by 10<5>Gy radiation dose, and has no pulverization, spalling, foaming, cracking and other damage phenomena, and the decontamination rate is up to more than 97 percent.
Description
Technical field: the present invention relates to a kind of radioresistant paint for nuclear power plant and preparation method thereof, belong to nuclear radiation protection material and preparation method thereof technical field.
Background technology: along with the cost of coal, oil, Sweet natural gas is constantly soaring, more and more countries begins sight is turned to nuclear power, and the Nuclear energy uses technology has been stepped into a fast-developing period.There is nuclear radiation in a lot of places of Nuclear power plants, and radiation meeting accelerated material is aging, and the porous concrete surface also adsorbs radioactive dust easily and forms permanent radioactive source, thereby operation and serviceman are caused radiation injury.Therefore, be the most frequently used preventive means of Nuclear power plants in building and equipment surface brushing radiation resistant coating, the basic provide protection of coating is provided on the one hand, smooth densification, easy cleaned surface are provided on the other hand.Because the nuclear radiation meeting makes powdering of paint, cracking, destroy the provide protection of coating, coating has only possessed radiation resistance could be used in the nuclear radiation place.Studies show that amine solidified Resins, epoxy is particularly suitable for as anti-gamma-emitting coating, its surperficial soil removability is also very good, and in practice, epoxy coating often is used as the Nuclear power plants protective coating.But organic base-material is very little to the radiating sorption, and at present radiation resistant coating mostly is to realize by pigment wherein, when using radiation hardness pigment, wishes that it contains high as far as possible nucleidic mass, as lead and barium; Can not contain elements such as the cobalt that behind irradiation, can change radioelement into, cadmium, antimony, strontium; Not halogen-containing as far as possible, element sulphur, aluminium powder, zinc powder, barium etc.Because containing lead pigments is under an embargo for a long time, domestic and international existing radioresistant paint for nuclear power plant usually adopts and add the radiation resistance that barite or asbestos improve coating in coating, as used in nuclear power station self-leveling coating BG48409, radiation shielding coating such as CN200410013678.X, but barite can be brought a large amount of element sulphurs into, uses in some nuclear radiation place to be restricted; Asbestos also exist serious environmental to pollute in production and construction process, are one of materials that has much at present dispute.
Summary of the invention
The present invention be directed to the deficiencies in the prior art, seek performance safe and reliable, satisfy the harsh environment for use of Nuclear power plants, production technique simply, the radiation resistant coating of harmful element such as not leaded, a kind of radioresistant paint for nuclear power plant and preparation method thereof is provided.Radiation resistant coating is made up of A, B two components, and wherein the A component is made up of Resins, epoxy, radiation hardness filler, reactive thinner and a little auxiliary, and the B component is a modified amine curing agent, it is characterized in that:
The weight proportion scope of each composition is in A, the radiation resistant coating A component:
Resins, epoxy 45%～70%
Alkyl glycidyl ether 8%～18%
Radiation hardness filler 20%～36%
Mixed aid 1%～2%
Wherein, the radiation hardness filler is made up of titanium dioxide, red iron oxide, lime carbonate, talcum powder, potassium titanate crystal whisker, and the granularity of each composition and weight proportion scope are:
Titanium dioxide rutile-type 40%～70%
Red iron oxide 700～1000 orders 3%～10%
Lime carbonate 700～1000 orders 5%～20%
Talcum powder 800～1000 orders 5%～15%
Potassium titanate crystal whisker 600～800 orders 10%～20%;
B, B component are modified amine curing agent, and the proportioning of A component and B component is 3～4: 1.
Above-mentioned Resins, epoxy is a kind of to two kinds of bisphenol A type epoxy resin, epoxidation linear phenolic resin; Potassium titanate crystal whisker adopts a kind of to three kinds of potassium tetratitanate whisker, crystal whisker of hexa potassium titanate, eight potassium titanate crystal whiskers; Modified amine curing agent is a kind of to two kinds of modification aliphatic cyclic amine and modified polyamide; Mixed aid is made up of defoamer, dispersion agent and thixotropic agent.
The preparation method of radiation resistant coating:
The preparation of radiation hardness filler, get by particle diameter and weight proportion:
Titanium dioxide rutile-type 40%～70%
Red iron oxide 700～1000 orders 3%～10%
Lime carbonate 700～1000 orders 5%～20%
Talcum powder 800～1000 orders 5%～15%
Potassium titanate crystal whisker 600～800 orders 10%～20%
It is stand-by that it evenly is mixed with the radiation hardness filler in stirrer for mixing;
The preparation method of radioresistant paint for nuclear power plant A component: get 45%～70% Resins, epoxy, 8%～18% alkyl glycidyl ether adds in the paint mixing tank, stir; Under agitation add 1%～2% mixed aid, 20%～36% radiation hardness filler, stir, cross three-roller and be ground to fineness, package spare less than 35 μ m.Add an amount of modified amine curing agent by 3～4: 1 during construction, stir and to use.
The present invention is applicable to the surfacecti proteon of Nuclear power plants nuclear radiation district building and equipment, as nuclear power plant containment shell, nuclear fuel factory building, pollutent storehouse etc.
The present invention has following beneficial effect, advantage and characteristics:
1, radioresistant paint for nuclear power plant of the present invention has good radioprotective and absorbing radiation performance, when coat-thickness is 80 μ m, 8.5 * 10
5Under the accumulation irradiation dose of Gy, the coating paint film is intact, and is glossy, no expansion, contraction, crackle, bubbles, peels off and phenomenons such as efflorescence, and irradiation postadhesion power is greater than 3.4MPa.
2, radioresistant paint for nuclear power plant has good clean effect, and coating surface is right
137Cs,
90Sr-
90The responsive rate of the contamination of Y is 3.8%, and decontamination percentage ratio is 97.1%.
3, radioresistant paint for nuclear power plant does not contain solvent, safety and environmental protection.
4, objectionable impurities such as not leaded, asbestos of radioresistant paint for nuclear power plant does not contain elements such as zinc, aluminium, and halogen, element sulphur content are limited the quantity of less than 1000ppm, and is safe and reliable to Nuclear power plants building and equipment protection.
5, radioresistant paint for nuclear power plant has added potassium titanate crystal whisker, except having improved the radiation resistance of filming, has also improved the thermotolerance of filming.
Embodiment:
During embodiment 1, at first take by weighing titanium dioxide, red iron oxide, lime carbonate, talcum powder, crystal whisker of hexa potassium titanate, become the radiation hardness filler stand-by in stirrer for mixing in the foregoing description 1 ratio.Take by weighing a certain amount of Resins, epoxy and reactive thinner in paint mixing tank in the foregoing description 1 ratio, stir; Radiation hardness filler in the foregoing description 1 ratio adds mixed aid successively, mixes stirs, and crosses three-roller and is ground to fineness less than 35 μ m, packages spare.Add modified amine curing agent in the foregoing description 1 ratio during construction, stir and to use.If with potassium tetratitanate whisker replacement crystal whisker of hexa potassium titanate, bisphenol A type epoxy resin and epoxidation linear phenolic resin are mixed use, modified amine curing agent employing modification aliphatic cyclic amine and modified polyamide are composite, then construct in the ratio batching of embodiment 2.
Every performance of the used in nuclear power station coating of anti-the nuclear radiation:
Claims (5)
1. a radioresistant paint for nuclear power plant is made up of A, B two components, and wherein the A component is made up of Resins, epoxy, radiation hardness filler, reactive thinner and a little auxiliary, and the B component is a modified amine curing agent, it is characterized in that:
The weight proportion scope of each composition is in A, the radiation resistant coating A component:
Resins, epoxy 45%～70%
Alkyl glycidyl ether 8%～18%
Radiation hardness filler 20%～36%
Mixed aid 1%～2%
Wherein, the radiation hardness filler is made up of titanium dioxide, red iron oxide, lime carbonate, talcum powder, potassium titanate crystal whisker, and the granularity of each composition and weight proportion scope are:
Titanium dioxide rutile-type 40%～70%
Red iron oxide 700～1000 orders 3%～10%
Lime carbonate 700～1000 orders 5%～20%
Talcum powder 800～1000 orders 5%～15%
Potassium titanate crystal whisker 600～800 orders 10%～20%
Mixed aid is made up of defoamer, dispersion agent and thixotropic agent;
B, B component are modified amine curing agent, and the proportioning of A component and B component is 3～4: 1.
2. a kind of radioresistant paint for nuclear power plant as claimed in claim 1 is characterized in that: Resins, epoxy is a kind of to two kinds of bisphenol A type epoxy resin, epoxidation linear phenolic resin.
3. a kind of radioresistant paint for nuclear power plant as claimed in claim 1 is characterized in that: potassium titanate crystal whisker adopts a kind of to three kinds of potassium tetratitanate whisker, crystal whisker of hexa potassium titanate, eight potassium titanate crystal whiskers.
4. a kind of radioresistant paint for nuclear power plant as claimed in claim 1 is characterized in that: modified amine curing agent is a kind of to two kinds of modification aliphatic cyclic amine and modified polyamide.
5. the preparation method of a radioresistant paint for nuclear power plant is characterized in that:
The preparation of A, radiation hardness filler: by granularity and weight proportion scope
Titanium dioxide rutile-type 40%～70%
Red iron oxide 700～1000 orders 3%～10%
Lime carbonate 700～1000 orders 5%～20%
Talcum powder 800～1000 orders 5%～15%
Potassium titanate crystal whisker 600～800 orders 10%～20%
It is stand-by that it evenly is mixed with the radiation hardness filler in stirrer for mixing;
The preparation method of B, radiation resistant coating A component: get 45%～70% Resins, epoxy, 8%～18% alkyl glycidyl ether adds in the paint mixing tank, stir; Under agitation add 20%～36% radiation hardness filler, 1%～2% the mixed aid of forming by defoamer, dispersion agent and thixotropic agent, stir, cross three-roller and be ground to fineness, package spare less than 35 μ m;
C, when construction are that 3～4: 1 ratio adds B component modification amine hardener in the proportioning of A component and B component, stir and can use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2008100263001A CN101245215B (en) | 2008-02-02 | 2008-02-02 | Radioresistant paint for nuclear power plant and manufacture method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008100263001A CN101245215B (en) | 2008-02-02 | 2008-02-02 | Radioresistant paint for nuclear power plant and manufacture method thereof |
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| CN101245215A CN101245215A (en) | 2008-08-20 |
| CN101245215B true CN101245215B (en) | 2010-10-13 |
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| CN2008100263001A Active CN101245215B (en) | 2008-02-02 | 2008-02-02 | Radioresistant paint for nuclear power plant and manufacture method thereof |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102010645B (en) * | 2010-12-30 | 2013-02-20 | 中远关西涂料化工（天津）有限公司 | Waterborne epoxy coating specially for nuclear power stations and preparation method thereof |
| CN102585697B (en) * | 2012-02-21 | 2014-07-30 | 广州秀珀化工股份有限公司 | Nuclear radiation-resistant coating and preparation method thereof |
| CN102690579B (en) * | 2012-06-18 | 2014-10-15 | 西南科技大学 | Reparation method of self-embrittled radioactive decontamination coating |
| CN102850910A (en) * | 2012-09-16 | 2013-01-02 | 广州秀珀化工股份有限公司 | Steel-structure-use nuclear-radiation-resistant paint |
| CN103555071A (en) * | 2013-10-30 | 2014-02-05 | 张洪男 | Radiation-proof coating and preparation method thereof |
| CN105400413B (en) * | 2015-12-21 | 2018-07-03 | 中昊北方涂料工业研究设计院有限公司 | Core radiation hardness, anticorrosive coating with rippability and preparation method thereof |
| CN107201136B (en) * | 2017-05-19 | 2019-08-23 | 河北晨阳工贸集团有限公司 | A kind of epoxide terrace and preparation method thereof, construction technology |
| CN108676459A (en) * | 2018-04-28 | 2018-10-19 | 杨显武 | A kind of radiation protection ring friendly coating and preparation method thereof |
| CN113549384B (en) * | 2021-07-02 | 2022-12-06 | 信和新材料（苏州）有限公司 | Epoxy resin coating and preparation method and application thereof |
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| CN1078568A (en) * | 1993-02-27 | 1993-11-17 | 张阿山 | A kind of multi-purpose anti-radiation material |
| EP0628968A1 (en) * | 1992-12-11 | 1994-12-14 | Sanoya Industries Co., Ltd. | RADIATION-BARRIER MATERIAL CAPABLE OF SIMULTANEOUS SHIELDING AGAINST $g(g)-RAY, X-RAY AND NEUTRON BEAM |
| JP2595001B2 (en) * | 1988-01-07 | 1997-03-26 | 電気化学工業株式会社 | Neutron absorption shielding paint |
| JP3126040B2 (en) * | 1991-06-03 | 2001-01-22 | 株式会社アルファ技研 | Epoxy resin composition for radiation shielding |
| CN1563217A (en) * | 2004-04-13 | 2005-01-12 | 黑龙江省劳动安全科学技术研究中心 | Radiation protection coating material and preparation method |
| CN1854218A (en) * | 2005-04-25 | 2006-11-01 | 上海秀珀化工有限公司 | Anti-radiative epoxy resin lawn pigment |
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2008
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| JP2595001B2 (en) * | 1988-01-07 | 1997-03-26 | 電気化学工業株式会社 | Neutron absorption shielding paint |
| JP3126040B2 (en) * | 1991-06-03 | 2001-01-22 | 株式会社アルファ技研 | Epoxy resin composition for radiation shielding |
| EP0628968A1 (en) * | 1992-12-11 | 1994-12-14 | Sanoya Industries Co., Ltd. | RADIATION-BARRIER MATERIAL CAPABLE OF SIMULTANEOUS SHIELDING AGAINST $g(g)-RAY, X-RAY AND NEUTRON BEAM |
| CN1078568A (en) * | 1993-02-27 | 1993-11-17 | 张阿山 | A kind of multi-purpose anti-radiation material |
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Address after: Supe Industrial Park, No. 72 Panyu District Zhong villages of Guangzhou city in Guangdong province 511495 Xie Shi Lu Patentee after: GUANGZHOU SUPER CHEMICAL COATING CO., LTD. Address before: Supe Industrial Park, No. 72 Panyu District Zhong villages of Guangzhou city in Guangdong province 511495 Xie Shi Lu Patentee before: Guangzhou Supe Chemical Co., Ltd. |