A kind of water-soluble anti-rust insulated paint and preparation method thereof
Technical field
The present invention relates to antirust paint technology, more particularly to a kind of water-soluble anti-rust insulated paint and preparation method thereof.
Background technology
With expanding economy, the loss caused by the dosage of steel and its surface corrosion is growing day by day.According to statistics, China
Every year due to metal erosion and caused by economic loss be up to 1,000,000,000 ~ 15,000,000,000 yuans, therefore, it is necessary to substantial amounts of steel table
Face antirust paint.At present, the domestic antirust paint used is solvent or diluent, alkyd and phenolic resin for base mainly using oil and benzene kind solvent
The solvent-borne type iron oxide red anticorrosive paint of material.Not only cost is high for this antirust paint, and poisonous, inflammable, only single antirust function, makes
Heavy artificial derusting, pre-treatment trouble need to be carried out with preceding.
On the other hand with the new and high technology industrial expansion such as Aeronautics and Astronautics, electronics and nuclear energy, to the heat-resisting of paint and coating
Property, insulating properties requirement also can more and more higher, the high-temperature insulating paint used at present and coating variety insulation heat-resisting effect it is fine, but
It is not have antirust function, therefore, develop novel antirust insulated paint and coating is necessary completely, and with far-reaching
Meaning.
The content of the invention
It is an object of the present invention to for it is existing have concurrently insulation, antirust function paint in blank the problem of, propose one
Kind water-soluble anti-rust insulated paint, the antirust paint scientific formulation is reasonable, and oil and benzene class can be substituted to make solvent with water, and with exhausted
Edge, antirust dual-use function.
To achieve the above object, the technical solution adopted by the present invention is:A kind of water-soluble anti-rust insulated paint, by weight proportion
Following each component composition:
Antirust base-material 18-25 parts;
Insulating base material 20-30 parts;
Rust transforming agent 2-4 parts;
It is passivated preservative 2-3 parts;
Drier 0.5-0.9 parts;
Auxiliary agent 1.3-1.6 parts;
Paint filler 20-30 parts;
Water 30-40 parts;
Wherein, the antirust base-material is the mixture without soap water-and acrylate, epoxy resin and polyurethane;
The insulating base material is tung oil;
The rust transforming agent is made up of micaceous iron oxide and phosphoric acid, and the phosphoric acid is the technical hydrochloric acid that content is 85 %, institute
The weight ratio for stating micaceous iron oxide and phosphoric acid is 1:1-1.5.
The main component of iron rust is Fe2O3And FeO, they be converted into the presence of phosphoric acid one layer can antirust densification
Phosphating coat (Fe3 ( PO4 ) 2), then iron of the phosphoric acid further with the bottom that becomes rusty acts on, and also generates one layer of fine and close phosphating coat, and upper
Phosphating coat is molten is integrated for the rust conversion in face, so that former loose rusty scale becomes fine and close phosphorization membrane and firmly oozes and invest steel table
Face.Its adhesive force and rust-preventing characteristic will get well (because artificial derusting is without the fine and close conversion coating that becomes rusty) more than artificial derusting.
Micaceous iron oxide:Main component is α-Fe2O3, it is a kind of with pigment made of natural crystal, there is mica shape piece
Shape structure, and referred to as micaceous iron oxide.Its Fe2O3Content is up to more than 92%, the grey powder with red phase, particle diameter 5~
100 microns, be a kind of thicker pigment.The advantages of its existing iron oxide red, its laminated structure is utilized again, is configured to antirust paint.
Due to thin slice close-packed arrays, there is physical iris action, improve rustless property.With made of micaceous iron oxide paint have with
Lower feature:There is good formation film;Excellent adhesive force and connection performance;Anti- atmosphere pollution and ultraviolet light, it is radiationless;Splendid
Durability;Easy telogenesis thick film etc..
Further, water-soluble anti-rust insulated paint, it is made up of the following each component of weight proportion:
Antirust base-material 18-25 parts;
Insulating base material 20-30 parts;
Rust transforming agent 2.5-3 parts;
It is passivated preservative 2-3 parts;
Drier 0.5-0.6 parts;
Auxiliary agent 1.3-1.5 parts;
Paint filler 20-30 parts;
Water 30-40 parts.
Further, the mol ratio of the no soap water-and acrylate, epoxy resin and polyurethane is 1:2:0.5-3.
Further, it is 2 to be passivated preservative by weight proportion:1 trbasic zinc phosphate and zinc chromate composition, due to they have it is excellent
Good anti-corrosion, rust-preventing characteristic, and have preferable intersolubility and adhesive force with above-mentioned phosphating coat, so as to further enhancing former phosphating coat
Anti-corrosive properties and rust-preventing characteristic, make paint film have preferably passivation and rust-preventing characteristic.
Further, the drier is naphthenic acid rare earth.
Further, the auxiliary agent includes propane diols, emulsifying dispersant Tween-80, defoamer tributylphosphate and anti-settling
Agent bentonite.Main function is the production and construction and bin stability for improving the paint.During mechanical dispersion, granules of pigments
In high degree of dispersion state, its surface energy is quite big in system, tends to be combined with each other and causes cohesion to be lumpd, how to make pigment
Dispersion is in metastable state within the long duration, and dispersant will play a significant role, and the present invention is using emulsification point
Powder Tween-80.
Further, the filler is made up of zinc oxide, trbasic zinc phosphate, iron oxide red and talcum powder, and main function is to improve
Covering power, anti-corrosive properties and the decorative appearance of the paint.The addition of pigment can improve the permeability resistance of coating, and pigment particles are impermeable
Water, it can fill pore, extend the distance of infiltration and matrix.When pigment is less than critical pigment volume concentration in coating, water passes through
The base-material infiltration of particle between pigment, just swiftly passes through the void diffusion between pigment particles during more than this concentration, therefore color
The water permeability of paint is decided by the geometry of the kind of pigment, dosage, decentralization and particle.In addition pigment-high polymer, face
The infiltration to react to each other also to water between material-high polymer-water, high polymer-matrix has an impact.
From the water-based basic mill base of the group of isoreactivity containing acrylic acid, zinc oxide is extender pigment, and trbasic zinc phosphate is anti-for activity
Become rusty pigment, and natrium nitrosum-sodium benzoate is used as corrosion inhibiter.Active group in mill base can be with Acrylate-Epoxy-poly- ammonia
Active group reaction in ester emulsion, greatly strengthen the compatibility of paint base and the permeability resistance of paint film.Trbasic zinc phosphate is a kind of water
Compound, it is nontoxic, have generation basic complex ability, this complex compound can with the polar group in paint vehicle, such as hydroxyl, carboxylic
Base etc. is further complexed, and generates crosslink complex, makes to form chemical bond between pigment-paint vehicle-ground and improve coating
Adhesive force and impermeability.Also co-ordination complex can be formed with Fe3+ makes passivation of metal surfaces, prevents the generation of rust.Zinc oxide and phosphorus
Sour zinc is used cooperatively the Corrosion Protection that can improve trbasic zinc phosphate, while can also play a part of stabilising system pH.Inhibition is resistance
The process only corroded, anodic process and cathodic process are prevented by corrosion inhibiter, can effectively prevent " dodging erosion " n (NaNO2)
∶n(C6H5COONa)=1 :10 are configured to the 10 % aqueous solution, and dosage is about 0 .5 %.
Further, the weight ratio of the zinc oxide, trbasic zinc phosphate, iron oxide red and talcum powder is 1:0.5:0.8:5-10.
Another purpose of the invention also discloses a kind of preparation method of above-mentioned water-soluble anti-rust insulated paint, including following
Step:
(1)After rust transforming agent, passivation preservative and paint filler are mixed evenly according to proportioning, through sand mill sand
Fineness is milled to less than 60 μm;
(2)By water, auxiliary agent, antirust base-material, insulating base material, drier and step(1)The material is proportionally added into scattered
Stirred in tank, be uniformly dispersed and produce water-soluble anti-rust insulated paint.
Further, step(1)Middle fineness of grind is less than 30 μm.
Water-soluble anti-rust insulated paint scientific formulation of the present invention, rationally, its preparation side is simple, easy, compared with prior art
Relatively there is advantages below:
(1)The present invention has antirust and the function of insulation concurrently, compensate for the blank in the field.
(2)The present invention is compound by certain means by the high polymer material with different chemical compositions and different performance, makes
Mutual supplement with each other's advantages.Specifically, the present invention compounds using without soap water-and acrylate, epoxy resin and polyurethane, combines three kinds
Different resins each the advantages of, a kind of economic and environment-friendly efficient waterborne anti-rust insulated paint is developed, when solidifying in work progress
Between short (180 DEG C, 2min), paint film is hard, flexible, bright, plentiful, wear-resisting, adhesive force is strong, excellent anti-corrosion performance.
(3)Antirust paint in long-term storage process, easily produce pigment deposit clumps, drier absorption, thickening and
The disadvantages such as resin hydrolyzing, stability test is carried out to antirust paint of the present invention:Two groups of samples are taken, one group revolves at lucifuge indoors
Turn 1 year, another group has carried out accelerated test, i.e., is kept in the case where l DEG C of 5 scholar two weeks, two groups of samples then are distinguished into film-making and carried out
Performance test, the results showed that, two groups of sample datas are essentially identical.Compared with the paint without storage, the viscosity painted after storage by
100s drops to 90s, and drying time is constant, and other physical and mechanical properties are uninfluenced, therefore, it is possible to think the storage of the antirust paint
It is stable to deposit.
(4)Freeze-thaw stability is tested, and is freezed repeatedly, is melted 20 times, the properties of paint are not affected.Experiment card
The freeze-thaw resistance of bright antirust paint is reliable, and winter freeze after store and can also extend the shelf life.
Embodiment
The present invention is further described with reference to embodiments:
Embodiment 1
Present embodiment discloses a kind of water-soluble anti-rust insulated paint, is made up of the following each component of weight proportion:
18 parts of antirust base-material;
20 parts of insulating base material
Become rusty 3 parts of transforming agent;
It is passivated 2.5 parts of preservative;
0.6 part of drier;
1.5 parts of auxiliary agent;
20 parts of paint filler;
40 parts of water;
Wherein, the antirust base-material is that mol ratio is 1:2:2 without soap water-and acrylate, epoxy resin and polyurethane
Mixture;The insulating base material is tung oil;
The rust transforming agent is made up of micaceous iron oxide and phosphoric acid, and the phosphoric acid is the technical hydrochloric acid that content is 85 %, institute
The weight ratio for stating micaceous iron oxide and phosphoric acid is 1:1.
The passivation preservative is 2 by weight proportion:1 trbasic zinc phosphate and zinc chromate composition.
The drier is naphthenic acid rare earth.
The auxiliary agent includes propane diols, emulsifying dispersant Tween-80, defoamer tributylphosphate and anti-settling agent bentonite.
The filler is 1 by weight ratio:0.5:0.8:8 zinc oxide, trbasic zinc phosphate, iron oxide red and talcum powder composition.
The preparation method of the present embodiment water-soluble anti-rust insulated paint, comprises the following steps:
(1)After rust transforming agent, passivation preservative and paint filler are mixed evenly according to proportioning, through sand mill sand
Fineness is milled to less than 50 μm;
(2)Material, water, auxiliary agent, base-material, drier described in step 1 are proportionally added into dispersion tank and stirred, is disperseed
Uniformly produce antirust paint.
Water-soluble anti-rust insulated paint fineness manufactured in the present embodiment is 50 μm after testing;Resistance to salt water is non-foaming, non-corrosive;
Nitrocellulose lacquer resistance is non-foaming, not bleeding;And brush Tu is good, surface drying time 30min.Water-soluble anti-rust insulated paint described in the present embodiment its
Specific insulation (Ω m) normality is 1.50 × 1014, immersion 24h is 9.00 × 1013。
Embodiment 2
Present embodiment discloses a kind of water-soluble anti-rust insulated paint, is made up of the following each component of weight proportion:
25 parts of antirust base-material;
25 parts of insulating base material;
Become rusty 3 parts of transforming agent;
It is passivated 3 parts of preservative;
0.5 part of drier;
1.5 parts of auxiliary agent;
30 parts of paint filler;
30 parts of water;
Wherein, the antirust base-material is that mol ratio is 1:2:1 without soap water-and acrylate, epoxy resin and polyurethane
Mixture;The insulating base material is tung oil;
The rust transforming agent is made up of micaceous iron oxide and phosphoric acid, and the phosphoric acid is the technical hydrochloric acid that content is 85%, described
The weight of micaceous iron oxide and phosphoric acid ratio is 1:1.
The passivation preservative is 2 by weight proportion:1 trbasic zinc phosphate and zinc chromate composition.
The drier is naphthenic acid rare earth.
The auxiliary agent includes propane diols, emulsifying dispersant Tween-80, defoamer tributylphosphate and anti-settling agent bentonite.
The filler is 1 by weight ratio:0.5:0.8:8 zinc oxide, trbasic zinc phosphate, iron oxide red and talcum powder composition.
The preparation method of the present embodiment water-soluble anti-rust insulated paint, comprises the following steps:
(1)After rust transforming agent, passivation preservative and paint filler are mixed evenly according to proportioning, through sand mill sand
Fineness is milled to less than 40 μm;
(2)Material, water, auxiliary agent, base-material, drier described in step 1 are proportionally added into dispersion tank and stirred, is disperseed
Uniformly produce antirust paint.
Water-soluble anti-rust insulated paint fineness manufactured in the present embodiment is 40 μm after testing;Resistance to salt water is non-foaming, non-corrosive;
Nitrocellulose lacquer resistance is non-foaming, not bleeding;And brush Tu is good, surface drying time 35min.Water-soluble anti-rust insulated paint described in the present embodiment its
Specific insulation (Ω m) normality is 1.05 × 1014, immersion 24h is 8.00 × 1013。
Embodiment 3
Present embodiment discloses a kind of water-soluble anti-rust insulated paint, is made up of the following each component of weight proportion:
20 parts of antirust base-material;
25 parts of insulating base material;
Become rusty 4 parts of transforming agent;
It is passivated 2 parts of preservative;
0.5 part of drier;
1.3 parts of auxiliary agent;
25 parts of paint filler;
30 parts of water;
Wherein, the antirust base-material is that mol ratio is 1:2:1 without soap water-and acrylate, epoxy resin and polyurethane
Mixture;The insulating base material is tung oil;
The rust transforming agent is made up of micaceous iron oxide and phosphoric acid, and the phosphoric acid is the technical hydrochloric acid that content is 85%, described
The weight of micaceous iron oxide and phosphoric acid ratio is 1:1.
The passivation preservative is 2 by weight proportion:1 trbasic zinc phosphate and zinc chromate composition.
The drier is naphthenic acid rare earth.
The auxiliary agent includes propane diols, emulsifying dispersant Tween-80, defoamer tributylphosphate and anti-settling agent bentonite.
The filler is 1 by weight ratio:0.5:0.8:8 zinc oxide, trbasic zinc phosphate, iron oxide red and talcum powder composition.
The preparation method of the present embodiment water-soluble anti-rust insulated paint, comprises the following steps:
(1)After rust transforming agent, passivation preservative and paint filler are mixed evenly according to proportioning, through sand mill sand
Fineness is milled to less than 60 μm;
(2)Material, water, auxiliary agent, base-material, drier described in step 1 are proportionally added into dispersion tank and stirred, is disperseed
Uniformly produce antirust paint.
Water-soluble anti-rust insulated paint fineness manufactured in the present embodiment is 60 μm after testing;Resistance to salt water is non-foaming, non-corrosive;
Nitrocellulose lacquer resistance is non-foaming, not bleeding;And brush Tu is good, surface drying time 45min.Water-soluble anti-rust insulated paint described in the present embodiment its
Specific insulation (Ω m) normality is 1.25 × 1014, immersion 24h is 8.50 × 1013。
The present invention is not limited to water-soluble anti-rust insulated paint described in above-described embodiment and preparation method thereof, wherein each thing
Expect the change of proportioning within protection scope of the present invention.
Finally it should be noted that:Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations;To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that:Its according to
The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered
Row equivalent substitution;And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.