CN110028824A - A kind of novel selfreparing Zinc-containing anticorrosion paint and preparation method thereof - Google Patents
A kind of novel selfreparing Zinc-containing anticorrosion paint and preparation method thereof Download PDFInfo
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- CN110028824A CN110028824A CN201910240673.7A CN201910240673A CN110028824A CN 110028824 A CN110028824 A CN 110028824A CN 201910240673 A CN201910240673 A CN 201910240673A CN 110028824 A CN110028824 A CN 110028824A
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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
- C09D5/10—Anti-corrosive paints containing metal dust
- C09D5/106—Anti-corrosive paints containing metal dust containing Zn
-
- 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
- C09D7/65—Additives macromolecular
-
- 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
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
Abstract
The present invention provides a kind of novel selfreparing Zinc-containing anticorrosion paint, belongs to field of surface engineering technique.The novel selfreparing Zinc-containing anticorrosion paint is composed of the following components in parts by mass: 40 ~ 50 parts of zinc powder, 3 ~ 5 parts of self-repairing microcapsule, 2 ~ 4 parts of water-base resin of carbon titanium cage, 20 ~ 30 parts of solvent, 10 ~ 15 parts of binder, 0.1 ~ 1 part of thickener, 8 ~ 12 parts of curing agent.Contain spelter coating compared to tradition, novel selfreparing Zinc-containing anticorrosion paint prepared by the present invention is by using carbon titanium cage water-base resin, greatly improve the weatherability and corrosion resistance of anticorrosive paint, the self-repairing microcapsule being added simultaneously can be when there are hallrcuts in coating for metal surfaces, release the capsule-core containing epoxy resin and weak-base anion-exchange resin, it repairs coating voluntarily to slight crack and absorbs the chlorion and sulfate ion immersed in crackle, improve the ageing resistance and anticorrosive property of coating.
Description
Technical field
The present invention relates to field of surface engineering technique, and in particular to a kind of novel selfreparing Zinc-containing anticorrosion paint and its preparation
Method.
Background technique
Contain a large amount of Na in seawater+、Cl-、Mg2+、Ca2+、SO4 2-Plasma is a kind of electrolysis with very strong corrosive
Matter solution.It can cause metal material when chemistry occurs between surrounding medium for the metal material in ocean or electrochemistry interacts
The destruction of material is rotten.Show that average corrosion loss in the world's accounts for about global gross national product according to the report of global Investigation On Corrosion
(GNP) 3.4%.Nearest trillion yuan is lost as caused by marine corrosion every year in China.Therefore, corrosion process is to ocean engineering knot
The safety and economic cost of structure object constitute great influence, and reducing corrosion rate can be with the service life of extending structure object, and reduces
Expensive maintenance cost.
Anticorrosive paint have many advantages, such as it is easily manufactured, cheap, therefore when selecting anti-corrosion measure become pay the utmost attention to
Object.Tradition using the zinc powder in coating, plays a part of cathodic protection to coating steel piece surface containing spelter coating, resin at
Barrier protection can be played the role of for coating by dividing, and coating is made to have preferable antirust ability.But its durability is poor, vulnerable to outer
Power and aging action and crack, damaged and failure so that the metal-oxide film that cathodic protection generates is easily by chloride ion and sulphur
Acid group plasma destroys, to reduce its Corrosion Protection.Therefore, anticorrosive paint early stage micro-crack is automatically repaired increasingly
It is concerned by people.Microcapsules technology is exactly one of composite material self-repair technology.It is when cyst material is broken
When splitting, core materials, which are released, occurs polymerization reaction with the latent curing agent in coating to carry out to coating material slight crack
Repairing, can greatly improve the ageing resistance of coating.
The present patent application selects carbon titanium cage water-base resin to improve the anti-crack ability of coating itself.Carbon titanium cage water-base resin is
The nano material prepared by chemical synthesising technology has hollow carbon fiber structural (carbon titanium basket structure), can be obviously improved
The intensity and weather resistance of resin overcome the defect in traditional water-base resin performance.The resin have the organic crosslinking of room temperature and
The characteristic of room temperature inorganic crosslinking, anticorrosive coating made of it have that low prepared surface construction requirement, adhesive force be strong, chemically-resistant
The characteristics such as corrosion.
Summary of the invention
The purpose of the present invention is to provide a kind of novel selfreparing Zinc-containing anticorrosion paints and preparation method thereof, to overcome tradition
Easy to aging under complex corrosion environment containing spelter coating, rupture deficiency, it is excellent which has that weatherability is good, anticorrosive property is strong
Point.
To achieve the goals above, it adopts the following technical scheme that
A kind of novel selfreparing Zinc-containing anticorrosion paint, which is characterized in that the coating includes following components in parts by mass: zinc
40 ~ 50 parts of powder, 3 ~ 5 parts of self-repairing microcapsule, 2 ~ 4 parts of film forming matter, 20 ~ 30 parts of solvent, 10 ~ 15 parts of binder, thickener 0.1
~ 1 part, 8 ~ 12 parts of curing agent.
Further, the compound zinc powder that the zinc powder is mixed using spherical zinc powder and zinc flake, and spherical zinc powder number
It is 24:1,1-3 μm of zinc powder average grain diameter with zinc flake portion rate.
Further, the self-repairing microcapsule is made of cyst wall and capsule-core, and wherein cyst wall is Lauxite, and capsule-core is ring
The mixture of oxygen resin and weak-base anion-exchange resin.
Further, the film forming matter is carbon titanium cage water-base resin.
Further, the solvent is high boiling aromatic hydrocarbon solvent S-100A.
Further, the binder is silane coupling agent.
Further, the thickener is cellulose thickener.
Further, the curing agent is the mixing of aliphatic isocyanates class curing agent and 2-methylimidazole curing agent
Object, mass ratio 9:1.
Further, the preparation process of the selfreparing Zinc-containing anticorrosion paint, which is characterized in that mainly include following step
It is rapid:
S1: self-repairing microcapsule is prepared:
Step (1): mixing the ratio of urea and formaldehyde 1:1 in mass ratio in flask, and with the stirring of the revolving speed of 2500r/min
It dissolves urea all, then adjusts PH to 8 with triethanolamine, reheat above-mentioned solution to 70 DEG C of heat preservation 1h, finally with 250r/
The stirring of min revolving speed, obtains the urea resin prepolymer of clear viscous；
Step (2): deionized water and neopelex emulsifier 20:1~80:1 in mass ratio are mixed, lemon is utilized
Acid and sodium hydroxide adjust its pH value to 3-4；
Step (3): by 30~40 parts, 5~10 parts urea resin prepolymers of mixed solution of step (2), 9 parts of epoxy resin and 1
Part weak-base anion-exchange resin is mixed, and uniform stirring, and then heating water bath to 65 DEG C of reaction 2h, is finally washed,
Drying for 24 hours, can be prepared by self-repairing microcapsule.
S2: preparation selfreparing Zinc-containing anticorrosion paint:
Step (11): weighing film forming matter and solvent by mass parts, with 5-10 points of the revolving speed stirring of 900-950r/min after mixing
Clock dissolves resin sufficiently；
Step (22): the self-repairing microcapsule and binder that S1 is prepared are weighed by mass parts, is added to the resin liquid of step (11)
In, and with 950-1000r/min uniform stirring 5-10 minutes, mixed solution is made；
Step (33): weighing curing agent by mass parts, is added in solution made from step (22), with 1000r/min high-speed uniform
Mixed solution is made in stirring 5-10 minutes；
Step (44): weighing zinc powder and thickener by mass parts, is added in solution made from step (33), with 1300-1500r/
Min high-speed uniform, which stirs 5-10 minutes, makes it be uniformly dispersed, and after filtering, a kind of novel selfreparing anti-corrosion containing zinc painting is prepared
Material.
The invention has the following beneficial effects:
A kind of novel selfreparing Zinc-containing anticorrosion paint provided by the invention and preparation method thereof, by using the aqueous tree of carbon titanium cage
Rouge greatly improves the weather-proof and corrosion resistance of anticorrosive paint, while containing epoxy resin and weakly-basic anion exchange tree
The addition of the self-repairing microcapsule of rouge allows coating to cause further to be automatically repaired when cracking because of environmental change.The product applies
Material preparation coating have the characteristics that durability is strong, anti-corrosion capability is high, can adapt to Coastal Thermal Power Plant difference variation greatly, be rich in
The complex corrosion environment of chloride ion, sulfate ion.
Specific embodiment
It to make the object, technical solutions and advantages of the present invention clearer, below will be by specific embodiment to the present invention
It is described in further detail.
A kind of novel selfreparing Zinc-containing anticorrosion paint, which is characterized in that the coating includes following groups in parts by mass
Point: 40 ~ 50 parts of zinc powder, 3 ~ 5 parts of self-repairing microcapsule, 2 ~ 4 parts of film forming matter, 20 ~ 30 parts of solvent, 10 ~ 15 parts of binder, thickening
0.1 ~ 1 part of agent, 8 ~ 12 parts of curing agent.
Further, the compound zinc powder that the zinc powder is mixed using spherical zinc powder and zinc flake, and spherical zinc powder number
It is 24:1,1-3 μm of zinc powder average grain diameter with zinc flake portion rate.
Further, the self-repairing microcapsule is made of cyst wall and capsule-core, and wherein cyst wall is Lauxite, and capsule-core is ring
The mixture of oxygen resin and weak-base anion-exchange resin.
Further, the film forming matter is carbon titanium cage water-base resin.
Further, the solvent is high boiling aromatic hydrocarbon solvent S-100A.
Further, the binder is silane coupling agent.
Further, the thickener is cellulose thickener.
Further, the curing agent is the mixing of aliphatic isocyanates class curing agent and 2-methylimidazole curing agent
Object, mass ratio 9:1.
Embodiment 1:
The preparation of S1, self-repairing microcapsule:
Step (1) mixes the ratio of urea and formaldehyde 1:1 in mass ratio in flask, and with the stirring of the revolving speed of 2500r/min
It dissolves urea all, then adjusts PH to 8 with triethanolamine, reheat above-mentioned solution to 70 DEG C of heat preservation 1h, finally with 250r/
The stirring of min revolving speed, obtains the urea resin prepolymer of clear viscous；
Step (2) mixes deionized water and neopelex emulsifier 20:1 in mass ratio, utilizes citric acid and hydrogen
Sodium oxide molybdena adjusts its pH value to 3-4；
Step (3) is by 30~40 parts, 5~10 parts urea resin prepolymers of mixed solution of step (2), 9 parts of epoxy resin and 1 part
Weak-base anion-exchange resin is mixed, and uniform stirring, and then heating water bath to 65 DEG C of reaction 2h, is finally washed, and is done
It is dry for 24 hours, can be prepared by self-repairing microcapsule.
Urea and formaldehyde are mixed in the ratio using mass ratio 1:1 when preparing capsule wall can be prepared capsule
Wall is more soft, and reaction rate is more accelerated, and is more easier to rupture after using smearing, release selfreparing that capsule-core includes at
Point, corrosion oxidation can be quickly protected metal surfaces from much sooner.
The preparation of S2, selfreparing Zinc-containing anticorrosion paint:
Step (11) weighs 2 parts of water-base resin of carbon titanium cage, 24.7 parts of high boiling aromatic hydrocarbon solvent S-100A by mass parts, mixing
Resin is dissolved sufficiently with the revolving speed stirring of 900r/min afterwards, obtains resin liquid；
Step (22) is weighed by mass parts takes S1 to prepare 3 parts and 11 parts of silane coupling agent of self-repairing microcapsule, is added to step
(11) in resin liquid, and with 950r/min high-speed uniform stirring 10 minutes, mixed solution is made；
Step (33) weighs 9 parts of aliphatic isocyanates class curing agent and 1 part of 2-methylimidazole curing agent part by mass parts, is added to
In step (22) obtained solution, 1000r/min high-speed uniform is stirred 10 minutes, and mixed solution is made；
Step (44) weighs 49 parts of zinc powder (spherical zinc powder and zinc flake ratio be 24:1) and cellulose thickener in mass parts
It 0.3 part, is added in step (33) obtained solution, so that it is uniformly dispersed within 10 minutes with the stirring of 1500r/min high-speed uniform, through filtering
Afterwards, a kind of novel selfreparing Zinc-containing anticorrosion paint is obtained.
Embodiment 2:
The preparation of S1, self-repairing microcapsule:
Step (1) mixes the ratio of urea and formaldehyde 1:1 in mass ratio in flask, and with the stirring of the revolving speed of 2500r/min
It dissolves urea all, then adjusts PH to 8 with triethanolamine, reheat above-mentioned solution to 70 DEG C of heat preservation 1h, finally with 250r/
The stirring of min revolving speed, obtains the urea resin prepolymer of clear viscous；
Step (2) mixes deionized water and neopelex emulsifier 80:1 in mass ratio, utilizes citric acid and hydrogen
Sodium oxide molybdena adjusts its pH value to 3-4；
Step (3) is by 30~40 parts, 5~10 parts urea resin prepolymers of mixed solution of step (2), 9 parts of epoxy resin and 1 part
Weak-base anion-exchange resin is mixed, and uniform stirring, and then heating water bath to 65 DEG C of reaction 2h, is finally washed, and is done
It is dry for 24 hours, can be prepared by self-repairing microcapsule.
The preparation of S2, selfreparing Zinc-containing anticorrosion paint:
Step (11) weighs 4 parts of water-base resin of carbon titanium cage by mass parts, 30 parts of high boiling aromatic hydrocarbon solvent S-100A, after mixing
Being stirred 10 minutes with the revolving speed of 950r/min dissolves resin, obtains resin liquid；
Step (22) is weighed by mass parts takes S1 to prepare 3 parts and 10 parts of silane coupling agent of self-repairing microcapsule, is added to step
(11) in resin liquid, and with 1000r/min high-speed uniform stirring 10 minutes, mixed solution is made；
Step (33) weighs 9 parts of aliphatic isocyanates class curing agent and 1 part of 2-methylimidazole curing agent by mass parts, is added to step
Suddenly in (22) obtained solution, 1100r/min high-speed uniform is stirred 5 minutes, and mixed solution is made；
Step (44) weighs 40 parts of zinc powder (spherical zinc powder and zinc flake ratio be 24:1), cellulose thickener 1 in mass parts
Part, it is added in step (33) obtained solution, so that it is uniformly dispersed within 5 minutes with the stirring of 1300r/min high-speed uniform, after filtering,
Obtain a kind of novel selfreparing Zinc-containing anticorrosion paint.
By lacing film comparative test, a kind of novel selfreparing of the present invention has been smeared containing zinc by one piece in experiment
The lacing film of anticorrosive paint and one piece of lacing film for not smearing anticorrosive paint are placed in same environment and stand, and by 6 months, do not smear
The lacing film of anticorrosive paint has generated the phenomenon that corrosion and part cracking, and is coated with a kind of novel selfreparing of the present invention and contains
The lacing film of zinc anticorrosive paint is then expected to coat all right, does not occur cracking, corrosion diffusion, coating phenomena such as falling, a kind of novel
Selfreparing Zinc-containing anticorrosion paint is on probation in certain Coastal Power Plant, tries out corrosion protection significant effect.
Above embodiment be only a specific embodiment of the invention is described, not to the scope of the present invention into
Row limits, and those skilled in the art can also do numerous modifications and variations on the basis of existing technology, set not departing from the present invention
Under the premise of meter spirit, all variations and modifications that this field ordinary engineering and technical personnel makes technical solution of the present invention,
It should fall within the scope of protection determined by the claims of the present invention.
Claims (9)
1. a kind of novel selfreparing Zinc-containing anticorrosion paint, which is characterized in that the coating includes following components in parts by mass:
40 ~ 50 parts of zinc powder, 3 ~ 5 parts of self-repairing microcapsule, 2 ~ 4 parts of film forming matter, 20 ~ 30 parts of solvent, 10 ~ 15 parts of binder, thickener
0.1 ~ 1 part, 8 ~ 12 parts of curing agent.
2. a kind of novel selfreparing Zinc-containing anticorrosion paint according to claim 1, which is characterized in that the zinc powder uses ball
The compound zinc powder of shape zinc powder and zinc flake mixing, and spherical zinc powder number and zinc flake portion rate are 24:1, zinc powder is average
1-3 μm of partial size.
3. a kind of novel selfreparing Zinc-containing anticorrosion paint according to claim 1, which is characterized in that the micro- glue of selfreparing
Capsule is made of cyst wall and capsule-core, and wherein cyst wall is Lauxite, and capsule-core is epoxy resin and weak-base anion-exchange resin
Mixture.
4. a kind of novel selfreparing Zinc-containing anticorrosion paint according to claim 1, which is characterized in that the film forming matter is
Carbon titanium cage water-base resin.
5. a kind of novel selfreparing Zinc-containing anticorrosion paint according to claim 1, which is characterized in that the solvent is high boiling
Point aromatic hydrocarbon solvent S-100A.
6. a kind of novel selfreparing Zinc-containing anticorrosion paint according to claim 1, which is characterized in that the binder is silicon
Alkane coupling agent.
7. a kind of novel selfreparing Zinc-containing anticorrosion paint according to claim 1, which is characterized in that the thickener is fibre
Tie up plain thickener.
8. a kind of novel selfreparing Zinc-containing anticorrosion paint according to claim 1, which is characterized in that the curing agent is rouge
The mixture of fat race Isocyanates curing agent and 2-methylimidazole curing agent, mass ratio 9:1.
9. a kind of preparation method of selfreparing Zinc-containing anticorrosion paint, which is characterized in that mainly comprise the steps that
S1: self-repairing microcapsule is prepared:
Step (1): mixing the ratio of urea and formaldehyde 1:1 in mass ratio in flask, and with the stirring of the revolving speed of 2500r/min
It dissolves urea all, then adjusts PH to 8 with triethanolamine, reheat above-mentioned solution to 70 DEG C of heat preservation 1h, finally with 250r/
The stirring of min revolving speed, obtains the urea resin prepolymer of clear viscous；
Step (2): deionized water and neopelex emulsifier 20:1~80:1 in mass ratio are mixed, lemon is utilized
Acid and sodium hydroxide adjust its pH value to 3-4；
Step (3): by 30~40 parts, 5~10 parts urea resin prepolymers of mixed solution of step (2), 9 parts of epoxy resin and 1
Part weak-base anion-exchange resin is mixed, and uniform stirring, and then heating water bath to 65 DEG C of reaction 2h, is finally washed,
Drying for 24 hours, can be prepared by self-repairing microcapsule；
S2: preparation selfreparing Zinc-containing anticorrosion paint:
Step (11): weighing film forming matter and solvent by mass parts, with 5-10 points of the revolving speed stirring of 900-950r/min after mixing
Clock dissolves resin sufficiently；
Step (22): the self-repairing microcapsule and binder that S1 is prepared are weighed by mass parts, is added to the resin liquid of step (11)
In, and with 950-1000r/min uniform stirring 5-10 minutes, mixed solution is made；
Step (33): weighing curing agent by mass parts, is added in solution made from step (22), with 1000r/min high-speed uniform
Mixed solution is made in stirring 5-10 minutes；
Step (44): weighing zinc powder and thickener by mass parts, is added in solution made from step (33), with 1300-1500r/
Min high-speed uniform, which stirs 5-10 minutes, makes it be uniformly dispersed, and after filtering, a kind of novel selfreparing anti-corrosion containing zinc painting is prepared
Material.
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| CN113716900A (en) * | 2021-08-10 | 2021-11-30 | 成都精准混凝土有限公司 | High-strength anti-crack concrete and preparation method thereof |
| CN115449781A (en) * | 2022-08-15 | 2022-12-09 | 无锡茂源金属结构件有限公司 | Anticorrosive coating and surface treatment method of corrosion-resistant steel grating |
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