CN105400413B - Core radiation hardness, anticorrosive coating with rippability and preparation method thereof - Google Patents
Core radiation hardness, anticorrosive coating with rippability and preparation method thereof Download PDFInfo
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- CN105400413B CN105400413B CN201510969454.4A CN201510969454A CN105400413B CN 105400413 B CN105400413 B CN 105400413B CN 201510969454 A CN201510969454 A CN 201510969454A CN 105400413 B CN105400413 B CN 105400413B
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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
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- 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
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- 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
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- 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
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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
- 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
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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
- 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
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
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- 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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Abstract
A kind of core radiation hardness, anticorrosive coating and preparation method with rippability, the coating is made of priming paint and finishing coat, the priming paint is made of first component and second component, and according to chemical reaction metering method, the paint equivalent proportion of matching of OH and NCO in second component are R in the first componentOH:NCO=1.1~1.3：1；The finishing coat is made of the third component and second component, and the paint equivalent proportion of matching of OH and NCO in second component are R in third componentOH:NCO=0.8~1.0：1; the coating of 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; stripping is replaced convenient; so that coating surface can equally be replaced after destroying with plastics soft board; solve the problems, such as that the radioactive material contaminations such as radioactive dust are difficult to clean completely, it being capable of effective protection field personnel not raying injury.
Description
Technical field
The invention belongs to radiation proof material fields, and in particular to a kind of core radiation hardness with rippability, anticorrosion
Coating and preparation method thereof.
Background technology
Nuclear energy has the characteristics that safety, economic, cleaning, and ripe technology can support it to be mass produced.In nuclear energy
Production environment in, there are nuclear radiation in many places.Nuclear radiation not only speeds up the aging of equipment, construction material, caused by put
Penetrating property dust etc. can also adsorb the radioactive source in porous concrete surface, forming permanence, and then staff is caused to hold
Continuous property damage.Especially in nuclear material production process, staff is in direct contact workshop and facility floor, to the people that works
The health effect of member is maximum, and walking about for staff also easily causes the transfer of the radioactive substances such as radioactive dust, causes
Radioactive substance is revealed.
At present, for the antiradiation protection on the ground such as nuclear power workshop facility, mainly using two methods, the first is to use
Sand coats ground for the epoxy-polyamide coatings and bicomponent polyurethane coating of main stuffing, and second is to adopt
It is laid with vinyl plate or other radioresistance plastic plates.For example, Sequa Corp of Switzerland polyurethane cement floor coatings multilayer applies
Layer system, what the program used is polyurethane coating route；5740 plastics soft boards of Russia can give the ground of laying
Antiradiation protection, when by nuclear pollution, the plastics soft board of gdna contamination can re-start laying after shear removal, to reach long
The purpose protected long.But since ground is influenced by equipment is mobile, staff tramples etc., radiation resistant coating surface soundness is most easy
It is destroyed.In addition, since coating is respectively provided with certain pot life, for a long time using rear coating protection performance must under
Drop, so as to which the strength of radioactive substance be caused to adhere to, permeate, it is difficult to cleaning completely, since existing core radiation resistant coating does not have
For removability, staff is made to be chronically in contaminated environment after coating contamination, to the health effect of staff
It is very big.
In above-mentioned second method, though material replacement can be carried out, and construction technology is simple by being laid with plastics soft board, it is in pipe
Laying and ground at pipeline joint are difficult to preferably be combined with the contact site of metope, and also be easy to causeing can not complete decontamination
The drawbacks of.
In addition, also there is the radiation resistant coating with removability at present for facility, building wall in core production environment
The protection such as wall re-replace, but this kind of coating is with one-component coating or rubber coating after peelable when seriously polluted
Based on, strength of coating is too low, bad for the resistance of fluid media (medium) performance, and the removability of coating is mainly by lower floor
Glycerine or kaolin provide, and protection upper strata is caused easily to come off, and can not be used for the protection on the ground of weight movement.
Invention content
The object of the present invention is to provide a kind of core radiation hardness, anticorrosive coating and its preparation sides with rippability
Method, for being not easy clean dirt and radioresistance plastic construction defective workmanship after existing ground protective coating system surface breakdown,
The coating system not only has splendid radiation resistance and medium-resistance, herein in connection with the peelable technology of coating, assigns anti-
Protect the good strippable property of coating so that coating surface can equally be replaced after destroying with plastics soft board, solve radioactivity
The problem of radioactive material contaminations such as dust are difficult to clean completely.
In order to achieve the above objectives, main technical schemes of the invention are as follows：
A kind of core radiation hardness with rippability, anticorrosive coating, are mainly made of, the bottom priming paint and finishing coat
Paint is mainly made of first component and second component, according to chemical reaction metering method ,-OH and-NCO in second component in the first component
With paint equivalent proportion be ROH:NCO=1.1~1.3：1；The finishing coat is mainly made of the third component and second component, according to chemical reaction
Metering method ,-OH and-NCO in second component with paint equivalent proportion is R in third componentOH:NCO=0.8~1.0：1；
The formula of first component is as follows in the priming paint, is calculated in mass percent：
The second component of the priming paint and the finishing coat is the polyisocyanate curing agent with below general formula：
R-(NCO)n, wherein, n >=3, R are alkyl；
The formula of the third component is as follows in the finishing coat, is calculated in mass percent：
Further, the formula of modified epoxy is as follows in the first component and third component, is calculated in mass percent：
Anticorrosive color stuffing in the first component and third component is iron oxide red, chrome oxide green, titanium dioxide, mica
At least three kinds of substances in powder, talcum powder are composed, wherein, iron oxide red, chrome oxide green or/and the total dosage of titanium dioxide should >=
50%, at least containing one kind in mica powder, talcum powder.
Dispersant in the first component and third component includes low molecular weight dispersant and high molecular weight dispersant.
Preferably, the low molecular weight dispersant is low molecular weight dispersant of the molecular weight between 800~1000.
Preferably, the high molecular weight dispersant is high molecular weight dispersant of the molecular weight between 5000~30000.
Also, the levelling agent in the first component and third component includes silicone levelling agent and esters of acrylic acid levelling
Agent.
Preferably, the silicone levelling agent is alkyl-modified organosiloxane class levelling agent.
Preferably, the esters of acrylic acid levelling agent is the alkyl-acrylates levelling agent of fluorine richness.
Antifoaming agent in the first component and third component is organic silicon antifoaming agent.
Preferably, the antifoaming agent is the solvent-type organosilicon antifoaming agent suitable for epoxy-polyurethane system.For example, finish
This (Elementis Specialties) the company's production and sales of gram (BYK) company, Efka (EFKE) company and hamming it is suitable
For the solvent-type organosilicon antifoaming agent of epoxy-polyurethane system.
Peelable auxiliary agent in the first component is at least one in BYK-394, TEGO RAD 2700, Sago-3633
Kind.
Catalyst in the first component and third component is dibutyl tin laurate, stannous octoate, lead naphthenate
At least one of.
Mixed solvent in the first component and third component is cyclohexanone, dimethylbenzene, butanone, propylene glycol monomethyl ether acetic acid
Two or more in ester, butyl acetate, methyl iso-butyl ketone (MIBK), wherein, mass percent shared by each solvent is not less than
20wt%.
Scratch resistance auxiliary agent in third component is CERAFLOUR 996, CERAFLOUR 998, CERAMAY 258,
At least one of BYK-5020, BYK-5030.
Again, the epoxy resin in the first component, the third component in modified epoxy formula is in E-03, E-06, E-12
At least one.
In the first component, the third component modified epoxy formula in mixed solvent for cyclohexanone, dimethylbenzene, butanone,
Two kinds in propylene glycol methyl ether acetate, butyl acetate, methyl iso-butyl ketone (MIBK) and two or more, wherein, matter shared by each solvent
It measures percentage and is not less than 20%.
Core radiation hardness of the present invention with rippability, the preparation method of anticorrosive coating, including as follows
Step：
1) synthesis modification epoxy resin
First epoxy resin, catalyst and mixed solvent are stirred evenly, add linoleic acid, is warming up to 140~150
DEG C, insulation reaction to acid value≤3mg KOH/g, filtering and discharging is to get modified epoxy after being cooled to less than 30 DEG C；
2) the first component in priming paint is prepared
Dispersant, levelling agent, antifoaming agent, peelable auxiliary agent are first added in into the mixed solvent, are stirring evenly and then adding into anti-corruption
Color stuffing is lost, the modified epoxy that step 2) obtains is added after stirring evenly, fineness is ground to less than 20 μm, is eventually adding
Catalyst, filtering and discharging is to get the first component in priming paint after being uniformly dispersed；
3) priming paint is prepared
First component that step 2) is obtained and polyisocyanate curing agent according to chemical reaction metering method, in first component-
OH and-NCO in second component is with ROH:NCO=1.1~1.3：1 equivalent proportion has following with paint, the polyisocyanate curing agent
General formula：R-(NCO)n, wherein, n >=3, R are alkyl；
4) the third component in finishing coat is prepared
Dispersant, levelling agent, antifoaming agent are first added in into the mixed solvent, are stirring evenly and then adding into anticorrosive color stuffing, carbon
Change boron, the modified epoxy that step 2) obtains is added after stirring evenly, be ground to fineness less than 20 μm, be eventually adding catalysis
Agent, scratch resistance auxiliary agent, filtering and discharging is to get the third component in finishing coat after being uniformly dispersed；
5) finishing coat is prepared
The third component that step 4) is obtained and polyisocyanate curing agent according to chemical reaction metering method, in the third component-
OH and-NCO in second component is with ROH:NCO=0.8~1.0：1 equivalent proportion has following with paint, the polyisocyanate curing agent
General formula：R-(NCO)n, wherein, n >=3, R are alkyl；
6) it constructs
By the prime that step 3) obtains in position to be protected, drying obtains one layer of rippability prime coat；By step
5) finishing coat obtained is brushed on peelable prime coat, dry, and construction is completed.
Coating layer thickness is only brushed together, but necessary without particular/special requirement when strippable property priming paint of the present invention is brushed
Ensure the continuity of film；In order to ensure excellent protection effect, the protection topcoat thickness with rippability should be
More than 0.2mm；After the completion of the construction of coating integral system, it can come into operation after at least drying 7 days.
The key problem in technology point of the present invention is：
(1) for coating of the present invention using epoxy-polyurethane as binder resin system, the coating surface densification of formation is smooth,
It is not easy to adhere to radioactive substance, is easy to decontamination cleaning.
Epoxy resin used in the present invention has both excellent resistance to medium and radiation-resistant property, and using excellent containing radiation-resistant property
Conjugated double bond linoleic acid carry out toughening modifying, improve coating toughness；Using polyfunctional isocyanates as curing agent, improve
The crosslink density of coating, during curing ,-OH reacts a large amount of ammonia ester bonds generated with-NCO, and then to ensure that coating has prominent resistance to
Mill property.
(2) selected peelable auxiliary agent containing hydroxyl isoreactivity group, can be handed over binder resin in priming paint of the present invention
Join and be oriented in primer coating surface, it is not easy to migrate or be adhered to finishing coat and remove together, during for strippable property priming paint, it can assign
The good strippable property for protecting finishing coat lasting, it is ensured that protection finishing coat can carry out repeated multiple times replacement.
(3) priming paint of the present invention, finishing coat are respectively provided with higher crosslink density, ensure that the medium-resistance of coating, but use
Different ROH:NCOValue is carried out with paint.Wherein ,-OH is excessive in priming paint, coating good toughness after curing, good with being had by protection face
Binding force, for a long time using not easily to fall off, but when-OH is excessively excessive, coating can feel like jelly, opposite with the purpose of the present invention.Cause
The R that this priming paint of the present invention determinesOH:NCO=1.1~1.3：1.
- NCO is excessive in finishing coat of the present invention, and extra NCO bases absorb the moisture in air, and then are converted to urea, increases
Add crosslink density, improve solvent resistance and chemical proof, if NCO component dosages are excessive, when-NCO is excessively too many,
Then coating is more crisp.Therefore, the R that finishing coat of the present invention determinesOH:NCO=0.8~1.0：1.
Coating system provided by the present invention has the corrosive mediums such as nuclear radiation pollution, strong acid and strong base and special oil product
Splendid resistance, and coating decontamination is easy, it is convenient that stripping is replaced, for the ground of workshop and facility in nuclear material production process
Protection, being capable of effective protection field personnel not raying injury.Beneficial effects of the present invention：
Coating system of the present invention can form uniform continuity coating on the protected surface, and the coating is to phosphorous
The oil products such as the hydrotreated kerosene of acid esters, synthetic lubricant fluid, hydraulic oil, washing gasoline and high concentration nitric acid have outstanding anti-resistance to
Property；Gamma ray resistant irradiates (integral dose) up to 5 × 107Gy bears fast neutron fluence >=1 × 1018n/cm2；Use detergent item
There are not abnormal phenomenon, such as dissolving, stripping, infiltration, DF >=100 in coating surface under part.
Specific embodiment
Technical scheme of the present invention is described in further detail below in conjunction with specific embodiment, but present disclosure and unlimited
In this.
Embodiment 1
(1) synthesis of modified epoxy：First by 34.0kg E-12,20.0kg E-06,0.6kg dimethylethanolamines with
And 28.0kg mixed solvents (12.0kg dimethylbenzene, 11.0kg butyl acetates and 5.0kg methyl iso-butyl ketone (MIBK)s) add in, stirring is equal
17.4kg linoleic acid is added in after even and is warming up to 145 DEG C, insulation reaction to acid value≤2.16mg KOH/g is cooled to 28 DEG C, discharges,
Up to modified epoxy.
(2) strippable property priming paint first component is prepared
, first by dispersant (2.0kg EFKA-4340,2.0kg BYK-110), levelling agent (0.2kg BYK-388,0.4kg
BYK-320), antifoaming agent (0.4kg BYK-051,0.3kg BYK-A 530) and 4.4kg BYK-394 add in 20.0kg mixing
In solvent (propylene glycol methyl ether acetate 5.0kg, butyl acetate 10.0kg and butanone 5.0kg), iron oxide red is added in after stirring evenly
20.0kg, titanium dioxide 15.0kg and mica powder 10.0kg add in the modified epoxy that step (1) obtains after stirring evenly
25.0kg is ground to fineness less than 20 μm, adds in 0.3kg dibutyl tin laurates, and filtering and discharging is to get can after being uniformly dispersed
Stripping property priming paint first component.
(3) protection the third component of finishing coat is prepared
First by dispersant (2.0kg EFKA-4340,2.0kg BYK-110), levelling agent (0.4kg BYK-388,0.4kg
BYK-320), it is molten to add in 23.0kg mixing for antifoaming agent (0.4kg BYK-051,0.4kg BYK-A530) and 8.0kg boron carbides
In agent (propylene glycol methyl ether acetate 6.0kg, butyl acetate 12.0kg and butanone 5.0kg), chrome oxide green is added in after stirring evenly
15.0kg, titanium dioxide 10.0kg and mica powder 5.0kg add in modified epoxy 30.0kg, it is small to be ground to fineness after stirring evenly
In 20 μm, add in 0.4kg dibutyl tin laurates, 3.0kg CERAFLOUR 998, after being uniformly dispersed filtering and discharging to get
Protect the third component of finishing coat.
(4) it constructs
Strippable property priming paint first component prepared by step 2) is with N-3390 curing agent according to OH:NCO=1.1:1 equivalent proportion
It with paint, and brushes together, is dried for 24 hours under standard conditions；
The third component of protection finishing coat prepared by step 3) is with N-3390 curing agent according to OH:NCO=1:1.1 equivalent proportion is matched
Paint on strippable property priming paint carries out sample-taking brush and applies mode to construct, and dry under standard conditions, every recoating for 24 hours together, totally four
Road.After the completion of the construction of coating integral system, performance detection is carried out after 7 days dry under standard conditions, concrete outcome is referring to table 1.
Embodiment 2
(1) synthesis of modified epoxy：First by 29.7kg E-12,29.7kg E-06,0.6kg dimethylethanolamines with
And 20.0kg mixed solvents (10.0kg dimethylbenzene, 5.0kg butyl acetates and 5.0kg methyl iso-butyl ketone (MIBK)s) add in, stirring is equal
20.0kg linoleic acid is added in after even and is warming up to 145 DEG C, insulation reaction to acid value≤1.88mg KOH/g is cooled to 27 DEG C, discharging
Up to modified epoxy.
(2) strippable property priming paint first component is prepared
First by first by dispersant (1.0kg EFKA-4340,2.0kg BYK-110), levelling agent (0.4kg BYK-388,
0.4kg BYK-320), antifoaming agent (0.6kg BYK-051,0.2kg BYK-A 530) and 7.0kg BYK-394 add in
In 20.0kg mixed solvents (propylene glycol methyl ether acetate 5.0kg, butyl acetate 10.0kg and butanone 5.0kg), added in after stirring evenly
Iron oxide red 20.0kg, titanium dioxide 10.0kg and mica powder 8.0kg add in the modified epoxy tree that step (1) obtains after stirring evenly
Fat 30.0kg is ground to fineness less than 20 μm, adds in 0.4kg dibutyl tin laurates, after being uniformly dispersed filtering and discharging to get
Strippable property priming paint first component.
(3) protection the third component of finishing coat is prepared
First by dispersant (1.0kg EFKA-4340,2.5kg BYK-110), levelling agent (0.3kg BYK-388,0.4kg
BYK-320), it is molten to add in 20.0kg mixing for antifoaming agent (0.4kg BYK-051,0.1kg BYK-A530) and 5.0kg boron carbides
In agent (propylene glycol methyl ether acetate 5kg, butyl acetate 10kg and butanone 5.0kg), chrome oxide green 18.0kg, titanium are added in after stirring evenly
White powder 10.0kg and mica powder 5.0kg adds in modified epoxy 35.0kg after stirring evenly, be ground to fineness less than 20 μm, add
Enter 0.3kg dibutyl tin laurates, 2.0kg CERAFLOUR 998, filtering and discharging is to get protection finishing coat third after being uniformly dispersed
Component.
(4) it constructs
Strippable property priming paint first component prepared by step 2) is with N-3390 curing agent according to OH:NCO=1.1:1 equivalent proportion
It with paint, and brushes together, is dried for 24 hours under standard conditions；
The third component of protection finishing coat prepared by step 3) is with N-3390 curing agent according to OH:NCO=1:1.1 equivalent proportion match
Paint on strippable property priming paint carries out sample-taking brush and applies mode to construct, and dry under standard conditions, every recoating for 24 hours together, totally four
Road.After the completion of the construction of coating integral system, performance detection is carried out after 7 days dry under standard conditions, concrete outcome is referring to table 1.
Embodiment 3
(1) synthesis of modified epoxy：First by 39.0kg E-12,17.0kg E-03,0.5kg dimethylethanolamines with
And 25.0kg mixed solvents (10.0kg cyclohexanone, 10.0kg butyl acetates and 5.0kg butanone) add in, and are stirring evenly and then adding into
18.5kg linoleic acid is directly warming up to 150 DEG C, and insulation reaction to acid value≤2.85mg KOH/g is cooled to 30 DEG C, discharge to get
Modified epoxy.
(2) prepared by strippable property priming paint first component
First by dispersant (2.0kgEFKA-4340,1.5kg LACTIMON), levelling agent (0.3kg FEKA-3777,
0.3kg BYK-306), antifoaming agent (0.3kg BYK-051,0.3kg BYK-066N) and 6.0kg TEGO PAD 2700 plus
Enter in 20.0kg mixed solvents (propylene glycol methyl ether acetate 5.0kg, methyl iso-butyl ketone (MIBK) 10.0kg and dimethylbenzene 5.0kg), stir
Iron oxide red 20.0kg, titanium dioxide 10.0kg and talcum powder 10.0kg are added in after even, what addition step 1) obtained after stirring evenly changes
Property epoxy resin 29.0kg, be ground to fineness less than 20 μm, add in stannous octoate 0.3kg, after being uniformly dispersed filtering and discharging to get
Strippable property priming paint first component.
(3) prepared by the third component of protection finishing coat
First by dispersant (2.0kgEFKA-4340,1.5kg LACTIMON), levelling agent (0.3kg FEKA-3777,
0.3kg BYK-306), antifoaming agent (0.3kg BYK-051,0.3kg BYK-066N) and 8.0kg boron carbides add in 20.0kg
In mixed solvent (propylene glycol methyl ether acetate 5.0kg, methyl iso-butyl ketone (MIBK) 10.0kg and dimethylbenzene 5.0kg), added in after stirring evenly
Chrome oxide green 17.0kg, titanium dioxide 10.0kg and talcum powder 5.0kg add in the modified epoxy that step 1) obtains after stirring evenly
33.0kg is ground to fineness less than 20 μm, 0.3kg stannous octoates and 2.0kg CERAFLOUR 996 is added in, after being uniformly dispersed
Filtering and discharging is to get protection the third component of finishing coat.
(4) it constructs
The strippable property priming paint first component that step 2) is prepared is with N-75 curing agent according to OH:NCO=1.2:1 equivalent proportion
It with paint, and brushes together, is dried for 24 hours under standard conditions.
The third component of protection finishing coat that step 3) is prepared is with N-75 curing agent according to OH：NCO=1：1.2 equivalent proportion is matched
Paint on strippable property priming paint carries out sample-taking brush and applies mode to construct, and dry under standard conditions, every recoating for 24 hours together, totally four
Road；After the completion of integral system construction, performance detection is carried out after 7 days dry under standard conditions, concrete outcome is referring to table 1.
Embodiment 4
(1) synthesis of modified epoxy：First by 20.0kg E-12,42.0kg E-03,0.5kg dimethylethanolamines with
And 27.0kg mixed solvents (10.0kg cyclohexanone, 12.0kg butyl acetates and 5.0kg butanone) add in, and are stirring evenly and then adding into
10.5kg linoleic acid is directly warming up to 150 DEG C, and insulation reaction to acid value≤2.50mg KOH/g is cooled to 25 DEG C, discharge to get
Modified epoxy.
(2) prepared by strippable property priming paint first component
First by dispersant (1.0kgEFKA-4340,1.0kg LACTIMON), levelling agent (0.4kg FEKA-3777,
0.4kg BYK-306), antifoaming agent (0.4kg BYK-051,0.4kg BYK-066N) and 4.0kg TEGO PAD 2700 plus
Enter in 25.0kg mixed solvents (propylene glycol methyl ether acetate 5.0kg, methyl iso-butyl ketone (MIBK) 10kg and dimethylbenzene 10kg), after stirring evenly
Iron oxide red 20.0kg, titanium dioxide 12.0kg and talcum powder 10.0kg are added in, the modification ring that step 1) obtains is added in after stirring evenly
Oxygen resin 25.0kg is ground to fineness less than 20 μm, adds in stannous octoate 0.4kg, filtering and discharging is to get peelable after being uniformly dispersed
Property priming paint first component.
(3) prepared by the third component of protection finishing coat
First by dispersant (1.0kgEFKA-4340,2.0kg LACTIMON), levelling agent (0.1kg FEKA-3777,
0.5kg BYK-306), antifoaming agent (0.1kg BYK-051,0.5kg BYK-066N) and 5.0kg boron carbides add in 22.0kg
In mixed solvent (propylene glycol methyl ether acetate 5.0kg, methyl iso-butyl ketone (MIBK) 12.0kg and dimethylbenzene 5.0kg), added in after stirring evenly
Chrome oxide green 15.0kg, titanium dioxide 10.0kg and talcum powder 5.0kg add in the modified epoxy that step 1) obtains after stirring evenly
35.0kg is ground to fineness less than 20 μm, 0.3kg stannous octoates and 3.5kg CERAFLOUR 996 is added in, after being uniformly dispersed
Filtering and discharging is to get protection the third component of finishing coat.
(4) it constructs
The strippable property priming paint first component that step 2) is prepared is with N-75 curing agent according to OH:NCO=1.2:1 equivalent proportion
It with paint, and brushes together, is dried for 24 hours under standard conditions.
The third component of protection finishing coat that step 3) is prepared is with N-75 curing agent according to OH：NCO=1：1.2 equivalent proportion is matched
Paint on strippable property priming paint carries out sample-taking brush and applies mode to construct, and dry under standard conditions, every recoating for 24 hours together, totally four
Road；After the completion of integral system construction, performance detection is carried out after 7 days dry under standard conditions, concrete outcome is referring to table 2.
Embodiment 5
(1) synthesis of modified epoxy：First by 30.0kg E-12,26.0kg E-06,0.6kg dimethylethanolamines with
And 25.0kg mixed solvents (5.0kg cyclohexanone, 15.0kg butyl acetates and 5.0kg propylene glycol methyl ether acetates) add in, and stir
18.4kg linoleic acid is added in after mixing uniformly and is directly warming up to 140 DEG C, and insulation reaction to acid value≤2.20mg KOH/g is cooled to 30
DEG C, it discharges to get modified epoxy.
Up to modified epoxy.
(2) prepared by strippable property priming paint first component
First by dispersant (2.5kg DISPERBYK-140,1.5kg EFKA-4300), levelling agent (0.5kg FEKA-
3777th, 0.3kg BYK-333), antifoaming agent (0.5kg BYK-051,0.3kg TEGO Glide 450) and 7.0kg Sago-
3633 add in 20.0kg mixed solvents (propylene glycol methyl ether acetate 5.0kg, dimethylbenzene 10.0kg and butanone 5.0kg), stir evenly
Chrome oxide green 20.0kg, titanium dioxide 10.0kg, mica powder 5.0kg and talcum powder 5.0kg are added in afterwards, and step 1) is added in after stirring evenly
Obtained modified epoxy 27.0kg is ground to fineness less than 20 μm, adds in 0.4kg lead naphthenates, mistake after being uniformly dispersed
Material is filtered out to get strippable property priming paint first component.
(3) prepared by the third component of protection finishing coat
First by dispersant (2.1kg DISPERBYK-140,1.5kg EFKA-4300), levelling agent (0.5kg FEKA-
3777th, 0.2kg BYK-333), antifoaming agent (0.3kg BYK-051,0.3kg TEGO Glide 450) and 8.0kg boron carbides
It adds in 20.0kg mixed solvents (propylene glycol methyl ether acetate 5.0kg, dimethylbenzene 10.0kg and butanone 5.0kg), adds after stirring evenly
Enter iron oxide red 15.0kg, titanium dioxide 5.0kg, mica powder 5.0kg and talcum powder 5kg, add in what step 1) obtained after stirring evenly
Modified epoxy 33.0kg is ground to fineness less than 20 μm, adds in 0.3kg lead naphthenates and 3.8kg BYK-5020,
Filtering and discharging is to get protection the third component of finishing coat after being uniformly dispersed.
(4) it constructs：
The strippable property priming paint first component that step 2) is prepared is with N-3390 curing agent according to OH：NCO=1.2：1 equivalent
It than matching paint, and brushes together, is dried for 24 hours under standard conditions；
The third component of protection finishing coat that step 3) is prepared is with N-75 curing agent according to OH：NCO=1：1.1 equivalent proportion is matched
Paint on strippable property priming paint carries out sample-taking brush and applies mode to construct, and dry under standard conditions, every recoating for 24 hours together, totally four
Road；After the completion of the construction of coating integral system, performance detection is carried out after 7 days dry under standard conditions, concrete outcome is referring to table 2.
Embodiment 6
(1) synthesis of modified epoxy：First by 20.0kg E-12,42.0kg E-06,0.5kg dimethylethanolamines with
And 20.0kg mixed solvents (5.0kg cyclohexanone, 10.0kg butyl acetates and 5.0kg propylene glycol methyl ether acetates) add in, and stir
17.5kg linoleic acid is added in after mixing uniformly and is directly warming up to 140 DEG C, and insulation reaction to acid value≤1.90mg KOH/g is cooled to 30
DEG C, it discharges to get modified epoxy.
Up to modified epoxy.
(2) prepared by strippable property priming paint first component
First by dispersant (1.5kg DISPERBYK-140,1.0kg EFKA-4300), levelling agent (0.2kg FEKA-
3777th, 0.4kg BYK-333), antifoaming agent (0.3kg BYK-051,0.2kg TEGO Glide 450) and 4.0kg Sago-
3633 add in 25.0kg mixed solvents (propylene glycol methyl ether acetate 5.0kg, dimethylbenzene 15.0kg and butanone 5.0kg), stir evenly
Chrome oxide green 25.0kg, titanium dioxide 12.0kg and mica powder 5.0kg are added in afterwards, and the modification ring that step 1) obtains is added in after stirring evenly
Oxygen resin 25.0kg is ground to fineness less than 20 μm, adds in 0.4kg lead naphthenates, and filtering and discharging is to get can after being uniformly dispersed
Stripping property priming paint first component.
(3) prepared by the third component of protection finishing coat
First by dispersant (1.0kg DISPERBYK-140,2.0kg EFKA-4300), levelling agent (0.4kg FEKA-
3777th, 0.2kg BYK-333), antifoaming agent (0.3kg BYK-051,0.2kg TEGO Glide 450) and 5.0kg boron carbides
It adds in 25.0kg mixed solvents (propylene glycol methyl ether acetate 6.0kg, dimethylbenzene 13.0kg and butanone 6.0kg), adds after stirring evenly
Enter iron oxide red 18.0kg, titanium dioxide 10.0kg and mica powder 5.0kg, the modified epoxy tree that step 1) obtains is added in after stirring evenly
Fat 30.0kg is ground to fineness less than 20 μm, adds in 0.4kg lead naphthenates and 2.5kg BYK-5020, after being uniformly dispersed
Filtering and discharging is to get protection the third component of finishing coat.
(4) it constructs：
The strippable property priming paint first component that step 2) is prepared is with N-3390 curing agent according to OH：NCO=1.2：1 equivalent
It than matching paint, and brushes together, is dried for 24 hours under standard conditions；
The third component of protection finishing coat that step 3) is prepared is with N-75 curing agent according to OH：NCO=1：1.1 equivalent proportion is matched
Paint on strippable property priming paint carries out sample-taking brush and applies mode to construct, and dry under standard conditions, every recoating for 24 hours together, totally four
Road；After the completion of the construction of coating integral system, performance detection is carried out after 7 days dry under standard conditions, concrete outcome is referring to table 2.
Table 1
Note：All test events of the present invention are pacified is tested according to corresponding national standard.
Table 2
Note：All test events of the present invention are pacified is tested according to corresponding national standard.
Claims (10)
1. a kind of core radiation hardness with rippability, anticorrosive coating, are mainly made of priming paint and finishing coat, the priming paint master
It to be made of first component and second component, the paint equivalent proportion of matching of-OH and-NCO in second component are R in the first componentOH:NCO=1.1
~1.3：1；The finishing coat is mainly made of the third component and second component, and-OH is painted with matching for-NCO in second component in third component
Equivalent proportion is ROH:NCO=0.8~1.0：1；
The formula of first component is as follows in the priming paint, is calculated in mass percent：
Second component in the priming paint and the finishing coat is the polyisocyanate curing agent with below general formula：
R-(NCO)n,
Wherein, n >=3, R are alkyl；
The formula of the third component is as follows in the finishing coat, is calculated in mass percent：
The formula of each ingredient of modified epoxy is as follows in the first component and third component, is calculated in mass percent：
2. the core radiation hardness according to claim 1 with rippability, anticorrosive coating, which is characterized in that described
Dispersant in first component and third component includes low molecular weight dispersant and high molecular weight dispersant；The low molecular weight point
Powder is low molecular weight dispersant of the molecular weight between 800~1000；The high molecular weight dispersant is molecular weight 5000
High molecular weight dispersant between~30000.
3. the core radiation hardness according to claim 1 with rippability, anticorrosive coating, which is characterized in that described
Levelling agent in first component and third component includes silicone levelling agent and esters of acrylic acid levelling agent；The organic silicon
Levelling agent is alkyl-modified organosiloxane class levelling agent；The esters of acrylic acid levelling agent is the acrylic acid alkyl of fluorine richness
Esters levelling agent.
4. the core radiation hardness according to claim 1 with rippability, anticorrosive coating, which is characterized in that described
Antifoaming agent in first component and third component is organic silicon antifoaming agent.
5. the core radiation hardness according to claim 1 with rippability, anticorrosive coating, which is characterized in that described
Peelable auxiliary agent in first component is at least one of BYK-394, TEGO RAD 2700, Sago-3633.
6. the core radiation hardness according to claim 1 with rippability, anticorrosive coating, which is characterized in that described
Catalyst in first component and third component is at least one of dibutyl tin laurate, stannous octoate, lead naphthenate.
7. the core radiation hardness according to claim 1 with rippability, anticorrosive coating, which is characterized in that described
Mixed solvent in first component and third component is cyclohexanone, dimethylbenzene, butanone, propylene glycol methyl ether acetate, butyl acetate,
Two or more in methyl iso-butyl ketone (MIBK), wherein, mass percent shared by each solvent is not less than 20%.
8. the core radiation hardness according to claim 1 with rippability, anticorrosive coating, which is characterized in that described
Epoxy resin in first component, the third component in modified epoxy formula is at least one of E-03, E-06, E-12.
9. the core radiation hardness according to claim 1 with rippability, anticorrosive coating, which is characterized in that described
Mixed solvent in first component, the third component in modified epoxy formula is cyclohexanone, dimethylbenzene, butanone, propylene glycol monomethyl ether vinegar
Two or more in acid esters, butyl acetate, methyl iso-butyl ketone (MIBK), wherein, mass percent shared by each solvent is not low
In 20%.
10. as claim 1-9 any one of them has the core radiation hardness of rippability, the preparation side of anticorrosive coating
Method includes the following steps：
1) synthesis modification epoxy resin
First epoxy resin, dimethylethanolamine and mixed solvent are stirred evenly, add linoleic acid, is warming up to 140~150
DEG C, insulation reaction to acid value≤3mg KOH/g, filtering and discharging is up to modified epoxy after being cooled to less than 30 DEG C；
2) the first component in priming paint is prepared
Dispersant, levelling agent, antifoaming agent, peelable auxiliary agent are added in into the mixed solvent, anticorrosive face is stirring evenly and then adding into and fills out
Material, adds the modified epoxy that step 1) obtains after stirring evenly, be ground to fineness less than 20 μm, be eventually adding catalysis
Agent, filtering and discharging is up to the first component in priming paint after being uniformly dispersed；
3) priming paint is prepared
First component that step 2) is obtained and polyisocyanate curing agent according to chemical reaction metering method, in first component-OH with
- NCO is with R in second componentOH:NCO=1.1~1.3：1 equivalent proportion has general formula with paint, the polyisocyanate curing agent：
R-(NCO)n, wherein, n >=3, R are alkyl；
4) the third component in finishing coat is prepared
Dispersant, levelling agent, antifoaming agent are first added in into the mixed solvent, are stirring evenly and then adding into anticorrosive color stuffing, boron carbide,
The modified epoxy that step 1) obtains is added after stirring evenly, is ground to fineness less than 20 μm, catalyst is eventually adding, resists
Auxiliary agent is scratched, filtering and discharging is up to the third component in finishing coat after being uniformly dispersed；
5) finishing coat is prepared
The third component that step 4) is obtained and polyisocyanate curing agent according to chemical reaction metering method, in the third component-OH with
- NCO is with R in second componentOH:NCO=0.8~1.0：1 equivalent proportion has general formula with paint, the polyisocyanate curing agent：
R-(NCO)n, wherein, n >=3, R are alkyl；
6) it constructs
By the prime that step 3) obtains in position to be protected, drying obtains one layer of rippability prime coat；Step 5) is obtained
To finishing coat brush on peelable prime coat, dry, construction is completed.
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| 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 |
| 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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| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
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