CN105400413A - Peelable radiation-resistant anti-corrosive coating for nuclear application and preparation method thereof - Google Patents

Peelable radiation-resistant anti-corrosive coating for nuclear application and preparation method thereof Download PDF

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CN105400413A
CN105400413A CN201510969454.4A CN201510969454A CN105400413A CN 105400413 A CN105400413 A CN 105400413A CN 201510969454 A CN201510969454 A CN 201510969454A CN 105400413 A CN105400413 A CN 105400413A
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component
nco
paint
coating
agent
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CN105400413B (en
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宋欢欢
陈小庆
李超宇
李志宝
王学龙
王茜红
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North Paint and Coatings Industry Research and Design Institute
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North Paint and Coatings Industry Research and Design Institute
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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
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/38—Boron-containing compounds
    • 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
    • C09D5/082—Anti-corrosive paints characterised by the anti-corrosive pigment
    • 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
    • C09D5/20—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for coatings strippable as coherent films, e.g. temporary coatings strippable as coherent films
    • 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
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Paints Or Removers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

The invention provides a peelable radiation-resistant anti-corrosive coating for nuclear application and a preparation method thereof. The coating comprises a primer and a finishing coat. The primer comprises a component A and a component B; according to the chemical reaction measurement method, -OH in component A and -NCO in component B are in equivalence ratio for coating preparation as below: ROH:NCO=1.1-1.3:1; the finishing coat comprises a component C and the component B, and -OH in component C and -NCO in component B are in equivalence ratio for coating preparation as below: ROH:NCO=0.8-1.0:1. The coating provided by the invention has excellent resistance and tolerance on corrosion media, such as nuclear radiation pollution, strong acid, strong base and special oils, and the coating is easy for decontamination, peeling and replacement, so that the destructed surface of the coating can be replaced as a plastic soft plate. The coating solves the problem of difficult complete cleaning of contamination of radioactive dust and other radioactive substances, and can effectively protect the field workers from radiation damage.

Description

There is the core radiation hardness, anticorrosive coating and preparation method thereof of rippability
Technical field
The invention belongs to antiradiation material field, be specifically related to a kind of the core radiation hardness, anticorrosive coating and preparation method thereof with rippability.
Background technology
The features such as nuclear energy has safely, economic, clean, proven technique can support that it carries out scale operation.In the production environment of nuclear energy, there is nuclear radiation in many places.Nuclear radiation not only acceleration equipment, material of construction aging, its radioactive dust etc. caused also can be adsorbed on the concrete surface of porous, forms the radioactive source of permanence, and then causes persistence to damage to staff.Especially in nuclear matter production process, staff directly contacts factory building and facility floor, maximum to the healthy effect of staff, and walking about of staff also very easily causes the transfer of the radioactive substances such as radioactive dust, causes radioactive substance to reveal.
At present, for the antiradiation protection on the ground such as nuclear power factory building facility, main employing two kinds of methods, the first adopts sand to be that the epoxy-polyamide coatings of main stuffing and bicomponent polyurethane coating apply ground, and the second adopts vinyl plate or other radioprotective plastic plates to lay.Such as, Sequa Corp of Switzerland polyurethane cement terrace paint multi-layer coating system, what the program adopted is polyurethane coating route; Muscovite 5740 plastics soft boards can give antiradiation protection to the ground of laying, and when being subject to nuclear pollution, the plastics soft board of gdna contamination can re-start laying after shear removal, to reach the object of permanent protection.But affect because ground to be trampled etc. by equipment moving, staff, radiation resistant coating surface soundness is subject to destruction most.In addition, because coating all has certain pot life, after long-time use, coating protection performance must decline to some extent, thus cause the brute force of radioactive substance to adhere to, permeate, be difficult to clean completely, because existing core radiation resistant coating does not possess removability, staff after coating contamination, is made to be in contaminated environment for a long time, very large to the healthy effect of staff.
In above-mentioned second method, though lay plastics soft boards can carry out material replacing, and construction technology is simple, and the contact site of its laying at pipe joint place and ground and metope is difficult to carry out desirable combination, and also easily causing cannot the drawback of decontamination completely.
In addition, also the radiation resistant coating with removability is had for the protection such as facility, building walls in core production environment at present, again change after peelable when seriously polluted, but this kind of coating is all based on onepot coating or rubber-like coating, strength of coating is too low, and the resistance for fluid medium performance is not good, and the removability of coating provides primarily of the glycerine of lower floor or kaolin, cause protection upper strata very easily to come off, the protection on the ground having weight movement can not be used for.
Summary of the invention
The object of this invention is to provide a kind of the core radiation hardness, anticorrosive coating and preparation method thereof with rippability, for not easily clean dirt and radioprotective plastic construction defective workmanship after the protective coating system surface breakdown of existing ground, this coating system not only has splendid radiation resistance and medium-resistance, also in conjunction with the peelable technology of coating, give the strippability that protective coating is good, equally can change with plastics soft board after coatingsurface is destroyed, solve the problem that the radio contaminations such as radioactive dust are difficult to clean completely.
For achieving the above object, main technical schemes of the present invention is as follows:
A kind of core radiation hardness, anticorrosive coating with rippability, primarily of priming paint and finish paint composition, described priming paint primarily of first component and second component composition, according to chemical reaction metering method, in described first component in-OH and second component-NCO join that to paint equivalence ratio be R oH:NCO=1.1 ~ 1.3:1; Described finish paint primarily of the third component and second component composition, according to chemical reaction metering method, in described third component in-OH and second component-NCO join that to paint equivalence ratio be R oH:NCO=0.8 ~ 1.0:1;
In described priming paint, the formula of first component is as follows, is calculated in mass percent:
The second component of described priming paint and described finish paint is the polyisocyanate curing agent with following general formula:
R-(NCO) n, wherein, n>=3, R is alkyl;
In described finish paint, the formula of the third component is as follows, is calculated in mass percent:
Further, in described first component and described third component, the formula of modified epoxy is as follows, is calculated in mass percent:
Anticorrosive color stuffing in described first component and described third component is red iron oxide, at least three kinds of combinations of substances in chromoxide green, titanium dioxide, mica powder, talcum powder form, wherein, red iron oxide, chromoxide green, or/and the total dosage of titanium dioxide answers >=50%, at least contain the one in mica powder, talcum powder.
Dispersion agent in described first component and described third component comprises lower molecular weight dispersion agent and high molecular weight dispersant.
Preferably, described lower molecular weight dispersion agent is the lower molecular weight dispersion agent of molecular weight between 800 ~ 1000.
Preferably, described high molecular weight dispersant is the high molecular weight dispersant of molecular weight between 5000 ~ 30000.
Again, the flow agent in described first component and described third component comprises silicone based flow agent and esters of acrylic acid flow agent.
Preferably, described silicone based flow agent is alkyl-modified organo-siloxane class flow agent.
Preferably, described esters of acrylic acid flow agent is the alkyl-acrylates flow agent of fluorine richness.
Defoamer in described first component and described third component is silicone based defoamer.
Preferably, described defoamer is the solvent-type organosilicon defoamer being applicable to epoxy-polyurethane system.Such as, the solvent-type organosilicon defoamer of the epoxy-polyurethane system that is applicable to of these (ElementisSpecialties) company production and sales of Bi Ke (BYK) company, EFKA (EFKE) company and hamming.
Peelable auxiliary agent in described first component is at least one in BYK-394, TEGORAD2700, Sago-3633.
Catalyzer in described first component and described third component is at least one in dibutyl tin laurate, stannous octoate, lead naphthenate.
Mixed solvent in described first component and described third component is two or more in pimelinketone, dimethylbenzene, butanone, 1-Methoxy-2-propyl acetate, N-BUTYL ACETATE, methyl iso-butyl ketone (MIBK), and wherein, shared by often kind of solvent, mass percent is not less than 20wt%.
Scratch resistance auxiliary agent in described third component is at least one in CERAFLOUR996, CERAFLOUR998, CERAMAY258, BYK-5020, BYK-5030.
Again, the epoxy resin in described first component, the third component in modified epoxy formula is at least one in E-03, E-06, E-12.
Mixed solvent in described first component, the third component in modified epoxy formula is in pimelinketone, dimethylbenzene, butanone, 1-Methoxy-2-propyl acetate, N-BUTYL ACETATE, methyl iso-butyl ketone (MIBK) two kinds and two or more, wherein, shared by often kind of solvent, mass percent is not less than 20%.
Of the present invention have the core radiation hardness of rippability, the preparation method of anticorrosive coating, and it comprises the steps:
1) synthesis modification epoxy resin
First epoxy resin, catalyzer and mixed solvent are stirred, then add linolic acid, be warming up to 140 ~ 150 DEG C, insulation reaction, to acid number≤3mgKOH/g, is cooled to after below 30 DEG C and filters discharging, obtain modified epoxy;
2) the first component in priming paint is prepared
First dispersion agent, flow agent, defoamer, peelable auxiliary agent are added in mixed solvent, anticorrosive color stuffing is added after stirring, step 2 is added again after stirring) modified epoxy that obtains, be ground to fineness and be less than 20 μm, finally add catalyzer, filter discharging after being uniformly dispersed, obtain the first component in priming paint;
3) priming paint is prepared
By step 2) the first component that obtains and polyisocyanate curing agent are according to chemical reaction metering method, and in first component ,-OH and-NCO in second component are with R oH:NCOthe equivalent of=1.1 ~ 1.3:1 matches well paint, and described polyisocyanate curing agent has following general formula: R-(NCO) n, wherein, n>=3, R is alkyl;
4) the third component in finish paint is prepared
First dispersion agent, flow agent, defoamer are added in mixed solvent, anticorrosive color stuffing, norbide is added after stirring, step 2 is added again after stirring) modified epoxy that obtains, be ground to fineness and be less than 20 μm, finally add catalyzer, scratch resistance auxiliary agent, filter discharging after being uniformly dispersed, obtain the third component in finish paint;
5) finish paint is prepared
By step 4) the third component of obtaining and polyisocyanate curing agent are according to chemical reaction metering method, and in the third component ,-OH and-NCO in second component are with R oH:NCOthe equivalent of=0.8 ~ 1.0:1 matches well paint, and described polyisocyanate curing agent has following general formula: R-(NCO) n, wherein, n>=3, R is alkyl;
6) construct
By step 3) prime that obtains is in position to be protected, dry, obtains one deck rippability prime coat; By step 5) finish paint that obtains brushes on peelable prime coat, and dry, construction completes.
When strippability priming paint of the present invention is brushed to coat-thickness without particular requirement, only brushing together just can, but the continuity of film must be ensured; In order to ensure excellent protection effect, the protection face lacquering thickness with rippability should at more than 0.2mm; After coating integral system has been constructed, at least can come into operation after dry 7 days.
Key problem in technology point of the present invention is:
(1) coating of the present invention take epoxy-polyurethane as binder resin system, and the coatingsurface densification of formation is smooth, not easily adheres to radioactive substance, is easy to decontamination cleaning.
The present invention's epoxy resin used has excellent resistance to medium and radiation-resistant property concurrently, and adopts the linolic acid of the conjugated double bond containing radiation-resistant property excellence to carry out toughening modifying, improves coating toughness; With polyfunctional isocyanic ester for solidifying agent, improve the cross-linking density of coating, during solidification ,-OH and-NCO react a large amount of ammonia ester bonds produced and then ensure that coating has outstanding wear resistance.
(2) selected by priming paint of the present invention, peelable auxiliary agent is all containing hydroxyl isoreactivity group, can be cross-linked with binder resin and be oriented in primer coating surface, not easily move or adhere to finish paint and peel off together, during for strippability priming paint, the good strippability that protection finish paint is lasting can be given, guarantee that protection finish paint can carry out repeated multiple times replacing.
(3) priming paint of the present invention, finish paint all have higher cross-linking density, ensure that the medium-resistance of coating, but have employed different R oH:NCOvalue carries out joining paint.Wherein, in priming paint ,-OH is excessive, solidification after coating good toughness, with by protection face, there is good bonding force, use difficult drop-off for a long time, but-OH excessive too much time, coating can be felt like jelly, contrary with object of the present invention.Therefore the R that determines of priming paint of the present invention oH:NCO=1.1 ~ 1.3:1.
In finish paint of the present invention ,-NCO is excessive, and unnecessary NCO base absorbs the moisture in air, and then changes into urea, increases cross-linking density, improves good solubility-resistence and chemical proof, if NCO component dosage is too much, then when-NCO excessive too many time, then coating is more crisp.Therefore, the R that determines of finish paint of the present invention oH:NCO=0.8 ~ 1.0:1.
Coating system provided by the present invention has splendid resistance to corrosive mediums such as nuclear radiation pollution, strong acid and strong base and special oil products; and coating decontamination is easy; peel off and change conveniently; ground for factory building and facility in nuclear matter production process is protected, can available protecting field personnel not raying injury.Beneficial effect of the present invention:
Coating system of the present invention can form uniform continuity coating on the protected surface, and this coating has outstanding resistance to the oil product such as hydrotreated kerosene, ucon oil, hydraulic efficiency oil, washing gasoline of phosphate ester-containing and high density nitric acid; Gamma ray resistant irradiation (integral dose) reaches 5 × 10 7gy, bears fast neutron fluence>=1 × 10 18n/cm 2; Under using detergent conditions there is not unusual phenomenon in coatingsurface, as dissolving, stripping, infiltration etc., and DF>=100.
Embodiment
Below in conjunction with specific embodiment, technical scheme of the present invention is described in further detail, but content of the present invention is not limited to this.
Embodiment 1
(1) synthesis of modified epoxy: first 34.0kgE-12,20.0kgE-06,0.6kg dimethylethanolamine and 28.0kg mixed solvent (12.0kg dimethylbenzene, 11.0kg N-BUTYL ACETATE and 5.0kg methyl iso-butyl ketone (MIBK)) are added, add 17.4kg linolic acid after stirring and be warming up to 145 DEG C, insulation reaction is to acid number≤2.16mgKOH/g, be cooled to 28 DEG C, discharging, obtains modified epoxy.
(2) strippability priming paint first component is prepared
, first by dispersion agent (2.0kgEFKA-4340, 2.0kgBYK-110), flow agent (0.2kgBYK-388, 0.4kgBYK-320), defoamer (0.4kgBYK-051, 0.3kgBYK-A530) and 4.4kgBYK-394 add 20.0kg mixed solvent (1-Methoxy-2-propyl acetate 5.0kg, N-BUTYL ACETATE 10.0kg and butanone 5.0kg) in, red iron oxide 20.0kg is added after stirring evenly, titanium dioxide 15.0kg and mica powder 10.0kg, the modified epoxy 25.0kg that step (1) obtains is added after stirring evenly, be ground to fineness and be less than 20 μm, add 0.3kg dibutyl tin laurate, discharging is filtered after being uniformly dispersed, obtain strippability priming paint first component.
(3) preparation protection finish paint third component
First by dispersion agent (2.0kgEFKA-4340, 2.0kgBYK-110), flow agent (0.4kgBYK-388, 0.4kgBYK-320), defoamer (0.4kgBYK-051, 0.4kgBYK-A530) and 8.0kg norbide add 23.0kg mixed solvent (1-Methoxy-2-propyl acetate 6.0kg, N-BUTYL ACETATE 12.0kg and butanone 5.0kg) in, chromoxide green 15.0kg is added after stirring evenly, titanium dioxide 10.0kg and mica powder 5.0kg, modified epoxy 30.0kg is added after stirring evenly, be ground to fineness and be less than 20 μm, add 0.4kg dibutyl tin laurate, 3.0kgCERAFLOUR998, discharging is filtered after being uniformly dispersed, finish paint third component must be protected.
(4) construct
By step 2) the strippability priming paint first component prepared matches well paint with N-3390 solidifying agent according to the equivalent of OH:NCO=1.1:1, and brushing is together, dry 24h under standard conditions;
By step 3) protection finish paint third component prepared matches well paint with N-3390 solidifying agent according to the equivalent of OH:NCO=1:1.1, and strippability priming paint carries out sample-taking brush and is coated with mode and constructs, and dry under standard conditions, every 24h recoat together, totally four roads.After coating integral system has been constructed, under standard conditions, carry out Performance Detection after dry 7 days, concrete outcome is see table 1.
Embodiment 2
(1) synthesis of modified epoxy: first 29.7kgE-12,29.7kgE-06,0.6kg dimethylethanolamine and 20.0kg mixed solvent (10.0kg dimethylbenzene, 5.0kg N-BUTYL ACETATE and 5.0kg methyl iso-butyl ketone (MIBK)) are added, add 20.0kg linolic acid after stirring and be warming up to 145 DEG C, insulation reaction is to acid number≤1.88mgKOH/g, be cooled to 27 DEG C, namely discharging obtains modified epoxy.
(2) strippability priming paint first component is prepared
First by first by dispersion agent (1.0kgEFKA-4340, 2.0kgBYK-110), flow agent (0.4kgBYK-388, 0.4kgBYK-320), defoamer (0.6kgBYK-051, 0.2kgBYK-A530) and 7.0kgBYK-394 add 20.0kg mixed solvent (1-Methoxy-2-propyl acetate 5.0kg, N-BUTYL ACETATE 10.0kg and butanone 5.0kg) in, red iron oxide 20.0kg is added after stirring evenly, titanium dioxide 10.0kg and mica powder 8.0kg, the modified epoxy 30.0kg that step (1) obtains is added after stirring evenly, be ground to fineness and be less than 20 μm, add 0.4kg dibutyl tin laurate, discharging is filtered after being uniformly dispersed, obtain strippability priming paint first component.
(3) preparation protection finish paint third component
First by dispersion agent (1.0kgEFKA-4340, 2.5kgBYK-110), flow agent (0.3kgBYK-388, 0.4kgBYK-320), defoamer (0.4kgBYK-051, 0.1kgBYK-A530) and 5.0kg norbide add 20.0kg mixed solvent (1-Methoxy-2-propyl acetate 5kg, N-BUTYL ACETATE 10kg and butanone 5.0kg) in, chromoxide green 18.0kg is added after stirring evenly, titanium dioxide 10.0kg and mica powder 5.0kg, modified epoxy 35.0kg is added after stirring evenly, be ground to fineness and be less than 20 μm, add 0.3kg dibutyl tin laurate, 2.0kgCERAFLOUR998, discharging is filtered after being uniformly dispersed, finish paint third component must be protected.
(4) construct
By step 2) the strippability priming paint first component prepared matches well paint with N-3390 solidifying agent according to the equivalent of OH:NCO=1.1:1, and brushing is together, dry 24h under standard conditions;
By step 3) protection finish paint third component prepared matches well paint with N-3390 solidifying agent according to the equivalent of OH:NCO=1:1.1, and strippability priming paint carries out sample-taking brush and is coated with mode and constructs, and dry under standard conditions, every 24h recoat together, totally four roads.After coating integral system has been constructed, under standard conditions, carry out Performance Detection after dry 7 days, concrete outcome is see table 1.
Embodiment 3
(1) synthesis of modified epoxy: first 39.0kgE-12,17.0kgE-03,0.5kg dimethylethanolamine and 25.0kg mixed solvent (10.0kg pimelinketone, 10.0kg N-BUTYL ACETATE and 5.0kg butanone) are added, add 18.5kg linolic acid after stirring and be directly warming up to 150 DEG C, insulation reaction is to acid number≤2.85mgKOH/g, be cooled to 30 DEG C, discharging, obtains modified epoxy.
(2) strippability priming paint first component preparation
First by dispersion agent (2.0kgEFKA-4340, 1.5kgLACTIMON), flow agent (0.3kgFEKA-3777, 0.3kgBYK-306), defoamer (0.3kgBYK-051, 0.3kgBYK-066N) and 6.0kgTEGOPAD2700 add 20.0kg mixed solvent (1-Methoxy-2-propyl acetate 5.0kg, methyl iso-butyl ketone (MIBK) 10.0kg and dimethylbenzene 5.0kg) in, red iron oxide 20.0kg is added after stirring evenly, titanium dioxide 10.0kg and talcum powder 10.0kg, step 1 is added after stirring evenly) the modified epoxy 29.0kg that obtains, be ground to fineness and be less than 20 μm, add stannous octoate 0.3kg, discharging is filtered after being uniformly dispersed, obtain strippability priming paint first component.
(3) preparation of finish paint third component is protected
First by dispersion agent (2.0kgEFKA-4340, 1.5kgLACTIMON), flow agent (0.3kgFEKA-3777, 0.3kgBYK-306), defoamer (0.3kgBYK-051, 0.3kgBYK-066N) and 8.0kg norbide add 20.0kg mixed solvent (1-Methoxy-2-propyl acetate 5.0kg, methyl iso-butyl ketone (MIBK) 10.0kg and dimethylbenzene 5.0kg) in, chromoxide green 17.0kg is added after stirring evenly, titanium dioxide 10.0kg and talcum powder 5.0kg, step 1 is added after stirring evenly) the modified epoxy 33.0kg that obtains, be ground to fineness and be less than 20 μm, add 0.3kg stannous octoate and 2.0kgCERAFLOUR996, discharging is filtered after being uniformly dispersed, finish paint third component must be protected.
(4) construct
By step 2) the strippability priming paint first component for preparing matches well paint with N-75 solidifying agent according to the equivalent of OH:NCO=1.2:1, and brushing is together, dry 24h under standard conditions.
By step 3) protection finish paint third component for preparing matches well paint with N-75 solidifying agent according to the equivalent of OH:NCO=1:1.2, and strippability priming paint carries out sample-taking brush and is coated with mode and constructs, and dry under standard conditions, every 24h recoat together, totally four roads; After integral system has been constructed, under standard conditions, carry out Performance Detection after dry 7 days, concrete outcome is see table 1.
Embodiment 4
(1) synthesis of modified epoxy: first 20.0kgE-12,42.0kgE-03,0.5kg dimethylethanolamine and 27.0kg mixed solvent (10.0kg pimelinketone, 12.0kg N-BUTYL ACETATE and 5.0kg butanone) are added, add 10.5kg linolic acid after stirring and be directly warming up to 150 DEG C, insulation reaction is to acid number≤2.50mgKOH/g, be cooled to 25 DEG C, discharging, obtains modified epoxy.
(2) strippability priming paint first component preparation
First by dispersion agent (1.0kgEFKA-4340, 1.0kgLACTIMON), flow agent (0.4kgFEKA-3777, 0.4kgBYK-306), defoamer (0.4kgBYK-051, 0.4kgBYK-066N) and 4.0kgTEGOPAD2700 add 25.0kg mixed solvent (1-Methoxy-2-propyl acetate 5.0kg, methyl iso-butyl ketone (MIBK) 10kg and dimethylbenzene 10kg) in, red iron oxide 20.0kg is added after stirring evenly, titanium dioxide 12.0kg and talcum powder 10.0kg, step 1 is added after stirring evenly) the modified epoxy 25.0kg that obtains, be ground to fineness and be less than 20 μm, add stannous octoate 0.4kg, discharging is filtered after being uniformly dispersed, obtain strippability priming paint first component.
(3) preparation of finish paint third component is protected
First by dispersion agent (1.0kgEFKA-4340, 2.0kgLACTIMON), flow agent (0.1kgFEKA-3777, 0.5kgBYK-306), defoamer (0.1kgBYK-051, 0.5kgBYK-066N) and 5.0kg norbide add 22.0kg mixed solvent (1-Methoxy-2-propyl acetate 5.0kg, methyl iso-butyl ketone (MIBK) 12.0kg and dimethylbenzene 5.0kg) in, chromoxide green 15.0kg is added after stirring evenly, titanium dioxide 10.0kg and talcum powder 5.0kg, step 1 is added after stirring evenly) the modified epoxy 35.0kg that obtains, be ground to fineness and be less than 20 μm, add 0.3kg stannous octoate and 3.5kgCERAFLOUR996, discharging is filtered after being uniformly dispersed, finish paint third component must be protected.
(4) construct
By step 2) the strippability priming paint first component for preparing matches well paint with N-75 solidifying agent according to the equivalent of OH:NCO=1.2:1, and brushing is together, dry 24h under standard conditions.
By step 3) protection finish paint third component for preparing matches well paint with N-75 solidifying agent according to the equivalent of OH:NCO=1:1.2, and strippability priming paint carries out sample-taking brush and is coated with mode and constructs, and dry under standard conditions, every 24h recoat together, totally four roads; After integral system has been constructed, under standard conditions, carry out Performance Detection after dry 7 days, concrete outcome is see table 2.
Embodiment 5
(1) synthesis of modified epoxy: first 30.0kgE-12,26.0kgE-06,0.6kg dimethylethanolamine and 25.0kg mixed solvent (5.0kg pimelinketone, 15.0kg N-BUTYL ACETATE and 5.0kg 1-Methoxy-2-propyl acetate) are added, add 18.4kg linolic acid after stirring and be directly warming up to 140 DEG C, insulation reaction is to acid number≤2.20mgKOH/g, be cooled to 30 DEG C, discharging, obtains modified epoxy.
Obtain modified epoxy.
(2) strippability priming paint first component preparation
First by dispersion agent (2.5kgDISPERBYK-140, 1.5kgEFKA-4300), flow agent (0.5kgFEKA-3777, 0.3kgBYK-333), defoamer (0.5kgBYK-051, 0.3kgTEGOGlide450) and 7.0kgSago-3633 add 20.0kg mixed solvent (1-Methoxy-2-propyl acetate 5.0kg, dimethylbenzene 10.0kg and butanone 5.0kg) in, chromoxide green 20.0kg is added after stirring evenly, titanium dioxide 10.0kg, mica powder 5.0kg and talcum powder 5.0kg, step 1 is added after stirring evenly) the modified epoxy 27.0kg that obtains, be ground to fineness and be less than 20 μm, add in 0.4kg lead naphthenate, discharging is filtered after being uniformly dispersed, obtain strippability priming paint first component.
(3) preparation of finish paint third component is protected
First by dispersion agent (2.1kgDISPERBYK-140, 1.5kgEFKA-4300), flow agent (0.5kgFEKA-3777, 0.2kgBYK-333), defoamer (0.3kgBYK-051, 0.3kgTEGOGlide450) and 8.0kg norbide add 20.0kg mixed solvent (1-Methoxy-2-propyl acetate 5.0kg, dimethylbenzene 10.0kg and butanone 5.0kg) in, red iron oxide 15.0kg is added after stirring evenly, titanium dioxide 5.0kg, mica powder 5.0kg and talcum powder 5kg, step 1 is added after stirring evenly) the modified epoxy 33.0kg that obtains, be ground to fineness and be less than 20 μm, add in 0.3kg lead naphthenate and 3.8kgBYK-5020, discharging is filtered after being uniformly dispersed, finish paint third component must be protected.
(4) construct:
By step 2) the strippability priming paint first component for preparing matches well paint with N-3390 solidifying agent according to the equivalent of OH:NCO=1.2:1, and brushing is together, dry 24h under standard conditions;
By step 3) protection finish paint third component for preparing matches well paint with N-75 solidifying agent according to the equivalent of OH:NCO=1:1.1, and strippability priming paint carries out sample-taking brush and is coated with mode and constructs, and dry under standard conditions, every 24h recoat together, totally four roads; After coating integral system has been constructed, under standard conditions, carry out Performance Detection after dry 7 days, concrete outcome is see table 2.
Embodiment 6
(1) synthesis of modified epoxy: first 20.0kgE-12,42.0kgE-06,0.5kg dimethylethanolamine and 20.0kg mixed solvent (5.0kg pimelinketone, 10.0kg N-BUTYL ACETATE and 5.0kg 1-Methoxy-2-propyl acetate) are added, add 17.5kg linolic acid after stirring and be directly warming up to 140 DEG C, insulation reaction is to acid number≤1.90mgKOH/g, be cooled to 30 DEG C, discharging, obtains modified epoxy.
Obtain modified epoxy.
(2) strippability priming paint first component preparation
First by dispersion agent (1.5kgDISPERBYK-140, 1.0kgEFKA-4300), flow agent (0.2kgFEKA-3777, 0.4kgBYK-333), defoamer (0.3kgBYK-051, 0.2kgTEGOGlide450) and 4.0kgSago-3633 add 25.0kg mixed solvent (1-Methoxy-2-propyl acetate 5.0kg, dimethylbenzene 15.0kg and butanone 5.0kg) in, chromoxide green 25.0kg is added after stirring evenly, titanium dioxide 12.0kg and mica powder 5.0kg, step 1 is added after stirring evenly) the modified epoxy 25.0kg that obtains, be ground to fineness and be less than 20 μm, add in 0.4kg lead naphthenate, discharging is filtered after being uniformly dispersed, obtain strippability priming paint first component.
(3) preparation of finish paint third component is protected
First by dispersion agent (1.0kgDISPERBYK-140, 2.0kgEFKA-4300), flow agent (0.4kgFEKA-3777, 0.2kgBYK-333), defoamer (0.3kgBYK-051, 0.2kgTEGOGlide450) and 5.0kg norbide add 25.0kg mixed solvent (1-Methoxy-2-propyl acetate 6.0kg, dimethylbenzene 13.0kg and butanone 6.0kg) in, red iron oxide 18.0kg is added after stirring evenly, titanium dioxide 10.0kg and mica powder 5.0kg, step 1 is added after stirring evenly) the modified epoxy 30.0kg that obtains, be ground to fineness and be less than 20 μm, add in 0.4kg lead naphthenate and 2.5kgBYK-5020, discharging is filtered after being uniformly dispersed, finish paint third component must be protected.
(4) construct:
By step 2) the strippability priming paint first component for preparing matches well paint with N-3390 solidifying agent according to the equivalent of OH:NCO=1.2:1, and brushing is together, dry 24h under standard conditions;
By step 3) protection finish paint third component for preparing matches well paint with N-75 solidifying agent according to the equivalent of OH:NCO=1:1.1, and strippability priming paint carries out sample-taking brush and is coated with mode and constructs, and dry under standard conditions, every 24h recoat together, totally four roads; After coating integral system has been constructed, under standard conditions, carry out Performance Detection after dry 7 days, concrete outcome is see table 2.
Table 1
Note: all test events of the present invention are all pacified the corresponding national standard of photograph and tested.
Table 2
Note: all test events of the present invention are all pacified the corresponding national standard of photograph and tested.

Claims (10)

1. there is core radiation hardness, the anticorrosive coating of rippability, be made up of priming paint and finish paint, described priming paint primarily of first component and second component composition, in described first component in-OH and second component-NCO join that to paint equivalence ratio be R oH:NCO=1.1 ~ 1.3:1; Described finish paint primarily of the third component and second component composition, in described third component in-OH and second component-NCO join that to paint equivalence ratio be R oH:NCO=0.8 ~ 1.0:1;
In described priming paint, the formula of first component is as follows, is calculated in mass percent:
Second component in described priming paint and described finish paint is the polyisocyanate curing agent with following general formula:
R-(NCO) n，
Wherein, n >=3, R is alkyl;
In described finish paint, the formula of the third component is as follows, is calculated in mass percent:
In described first component and described third component, the formula of each composition of modified epoxy is as follows, is calculated in mass percent:
2. core radiation hardness, the anticorrosive coating with rippability according to claim 1, is characterized in that, the dispersion agent in described first component and described third component comprises lower molecular weight dispersion agent and high molecular weight dispersant; Described lower molecular weight dispersion agent is the lower molecular weight dispersion agent of molecular weight between 800 ~ 1000; Described high molecular weight dispersant is the high molecular weight dispersant of molecular weight between 5000 ~ 30000.
3. core radiation hardness, the anticorrosive coating with rippability according to claim 1, is characterized in that, the flow agent in described first component and described third component comprises silicone based flow agent and esters of acrylic acid flow agent; Described silicone based flow agent is alkyl-modified organo-siloxane class flow agent; Described esters of acrylic acid flow agent is the alkyl-acrylates flow agent of fluorine richness.
4. core radiation hardness, the anticorrosive coating with rippability according to claim 1, is characterized in that, the defoamer in described first component and described third component is silicone based defoamer.
5. core radiation hardness, the anticorrosive coating with rippability according to claim 1, is characterized in that, the peelable auxiliary agent in described first component is at least one in BYK-394, TEGORAD2700, Sago-3633.
6. core radiation hardness, the anticorrosive coating with rippability according to claim 1, is characterized in that, the catalyzer in described first component and described third component is at least one in dibutyl tin laurate, stannous octoate, lead naphthenate.
7. core radiation hardness, the anticorrosive coating with rippability according to claim 1, it is characterized in that, mixed solvent in described first component and described third component is two or more in pimelinketone, dimethylbenzene, butanone, 1-Methoxy-2-propyl acetate, N-BUTYL ACETATE, methyl iso-butyl ketone (MIBK), wherein, shared by often kind of solvent, mass percent is not less than 20%.
8. core radiation hardness, the anticorrosive coating with rippability according to claim 1, is characterized in that, the epoxy resin in described first component, the third component in modified epoxy formula is at least one in E-03, E-06, E-12.
9. core radiation hardness, the anticorrosive coating with rippability according to claim 1, it is characterized in that, mixed solvent in described first component, the third component in modified epoxy formula is two or more in pimelinketone, dimethylbenzene, butanone, 1-Methoxy-2-propyl acetate, N-BUTYL ACETATE, methyl iso-butyl ketone (MIBK), wherein, shared by often kind of solvent, mass percent is not less than 20%.
10. as described in any one of claim 1-9, have the core radiation hardness of rippability, the preparation method of anticorrosive coating, it comprises the steps:
1) synthesis modification epoxy resin
First epoxy resin, catalyzer and mixed solvent are stirred, then add linolic acid, be warming up to 140 ~ 150 DEG C, insulation reaction, to acid number≤3mgKOH/g, is filtered discharging and is namely obtained modified epoxy after being cooled to less than 30 DEG C;
2) the first component in priming paint is prepared
Dispersion agent, flow agent, defoamer, peelable auxiliary agent are added in mixed solvent, anticorrosive color stuffing is added after stirring, step 1 is added again after stirring) modified epoxy that obtains, be ground to fineness and be less than 20 μm, finally add catalyzer, filter discharging after being uniformly dispersed and namely obtain first component in priming paint;
3) priming paint is prepared
By step 2) the first component that obtains and polyisocyanate curing agent are according to chemical reaction metering method, and in first component ,-OH and-NCO in second component are with R oH:NCOthe equivalent of=1.1 ~ 1.3:1 matches well paint, and described polyisocyanate curing agent has following general formula: R-(NCO) n, wherein, n>=3, R is alkyl;
4) the third component in finish paint is prepared
First dispersion agent, flow agent, defoamer are added in mixed solvent, anticorrosive color stuffing, norbide is added after stirring, step 1 is added again after stirring) modified epoxy that obtains, be ground to fineness and be less than 20 μm, finally add catalyzer, scratch resistance auxiliary agent, filter discharging after being uniformly dispersed and namely obtain the third component in finish paint;
5) finish paint is prepared
By step 4) the third component of obtaining and polyisocyanate curing agent are according to chemical reaction metering method, and in the third component ,-OH and-NCO in second component are with R oH:NCOthe equivalent of=0.8 ~ 1.0:1 matches well paint, and described polyisocyanate curing agent has following general formula: R-(NCO) n, wherein, n>=3, R is alkyl;
6) construct
By step 3) prime that obtains is in position to be protected, dry, obtains one deck rippability prime coat; By step 5) finish paint that obtains brushes on peelable prime coat, and dry, construction completes.
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106634453A (en) * 2016-12-28 2017-05-10 中昊北方涂料工业研究设计院有限公司 Preparation method of heavy corrosion protection primer resin
CN107142003A (en) * 2017-07-05 2017-09-08 北京科技大学 A kind of preparation method for the peelable enhancing protective coating system of connecting portion
CN113861729A (en) * 2021-10-14 2021-12-31 新纶新能源材料(常州)有限公司 High-corrosion-resistance environment-friendly coating and preparation method thereof
CN116855146A (en) * 2021-11-18 2023-10-10 航天材料及工艺研究所 Strippable coating with strong room temperature oxidant resistance, manufacturing method and coating structure

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1854218A (en) * 2005-04-25 2006-11-01 上海秀珀化工有限公司 Anti-radiative epoxy resin lawn pigment
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
CN102585697A (en) * 2012-02-21 2012-07-18 广州秀珀化工股份有限公司 Nuclear radiation-resistant coating and preparation method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1854218A (en) * 2005-04-25 2006-11-01 上海秀珀化工有限公司 Anti-radiative epoxy resin lawn pigment
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
CN102585697A (en) * 2012-02-21 2012-07-18 广州秀珀化工股份有限公司 Nuclear radiation-resistant coating and preparation method thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106634453A (en) * 2016-12-28 2017-05-10 中昊北方涂料工业研究设计院有限公司 Preparation method of heavy corrosion protection primer resin
CN107142003A (en) * 2017-07-05 2017-09-08 北京科技大学 A kind of preparation method for the peelable enhancing protective coating system of connecting portion
CN107142003B (en) * 2017-07-05 2019-11-12 北京科技大学 A kind of preparation method for the peelable enhancing protective coating system of connecting portion
CN113861729A (en) * 2021-10-14 2021-12-31 新纶新能源材料(常州)有限公司 High-corrosion-resistance environment-friendly coating and preparation method thereof
CN113861729B (en) * 2021-10-14 2022-12-09 新纶新能源材料(常州)有限公司 High-corrosion-resistance environment-friendly coating and preparation method thereof
CN116855146A (en) * 2021-11-18 2023-10-10 航天材料及工艺研究所 Strippable coating with strong room temperature oxidant resistance, manufacturing method and coating structure

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