CN105602415B - Steel structure surface protection VCI powder zinc-rich paint and preparation method thereof - Google Patents
Steel structure surface protection VCI powder zinc-rich paint and preparation method thereof Download PDFInfo
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- CN105602415B CN105602415B CN201610026974.6A CN201610026974A CN105602415B CN 105602415 B CN105602415 B CN 105602415B CN 201610026974 A CN201610026974 A CN 201610026974A CN 105602415 B CN105602415 B CN 105602415B
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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
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
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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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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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
- C09D5/03—Powdery paints
- C09D5/033—Powdery paints characterised by the additives
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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
- C09D5/03—Powdery paints
- C09D5/033—Powdery paints characterised by the additives
- C09D5/038—Anticorrosion agents
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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
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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
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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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
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The present invention provides a kind of steel structure surface protection VCI powder zinc-rich paint, it is characterised in that：Include the component of following parts by weight：Including base-material, filler, VCI vapour phase inhibitors and auxiliary agent；The base-material includes 20 parts~50 parts epoxy powder resins, 20 parts~50 parts polyester powder resins；The filler includes 30 parts~60 parts zinc flakes, 5 parts~10 parts aluminium triphosphates, 5 parts~10 parts trbasic zinc phosphates；The auxiliary agent for levelling agent, conductive agent, degasser, one or more of；The base-material, the mass ratio of filler are 3:1~3:7；The quality of the VCI vapour phase inhibitors is 5 parts~10 parts of base-material and filler gross mass；The quality of the auxiliary agent is 2 parts~10 parts of base-material and filler gross mass.The coating not only has the good shielding action of powdery paints, but also the cathodic protection effect with quite general zinc-rich paint, while also has the corrosion mitigating effect of VCI vapour phase inhibitors, so as to reach the protection effect excellent to metal base.
Description
Technical field
The invention belongs to paint field, more particularly to a kind of steel structure surface protection VCI powder zinc-rich paint and its system
Preparation Method.
Background technology
Galvanizing is called galvanizing by dipping, is to immerse the steel member after derusting in the zinc liquid of 600 DEG C or so high temperature melts, makes
Steel member surface attachment zinc layers, zinc coating thickness cannot be less than 65 μm to 5mm with lower thin sheet, and 5mm and more than slab are not less than 86 μm.
As a kind of effective anti-corrosion of metal mode, hot dipping zinc technology is had been widely used on the metal structure facility of every profession and trade.
Existing galvanizing construction technology is as shown in Figure 1, however, existing galvanizing construction technology has many defects：
(1) acid cleaning process can generate substantial amounts of acid waste liquid, activation and exposure processing stage using 20% hydrochloric acid
Substantial amounts of industrial wastewater can be generated using ZnCl2, NH4Cl solution, if directly discharge can cause water resource, soil resource
Serious pollution, and cost for wastewater treatment is higher；
(2) need to consume substantial amounts of coal resources in the technical process, to maintain zinc bath temperature degree, energy waste is serious.Zinc
The temperature of slot needs to maintain 470 DEG C or more for a long time, and drying needs to maintain 180 DEG C or so, not only needs to consume substantial amounts of coal
The resources such as charcoal, natural gas, and substantial amounts of zinc fume pollution can be generated.By taking certain surface treatment factory as an example, which handles bridge every year
50,000 tons or so of frame, it is per ton to need with coal 55kg or so, the carbon dioxide of standard Discharged form Coal Combustion 2620kg per ton, it is known that the factory
Annual 7205 tons or so of carbon amounts of row (this data does not include the coal for the non-working time zinc slot being maintained to be consumed), belongs to high row's carbon row
Industry.
(3) complicated construction technique, construction environment are severe.There are large quantity of exhaust gas, waste liquid to generate in work progress, and intractability
Greatly, surrounding enviroment are polluted.
(4) zinc resource waste is serious.Metallic zinc is non-renewable resources, and metallic zinc quantity of material is big used in the technique, and
It is general to coating performance.
Therefore, the anti-corrosion generally use zinc-rich paint of existing steel member is realized.The anticorrosive coating of indoor and outdoor steel construction is general
Selection zinc-rich paint is bottom, and compound intermediate coat, finishing coat use, and antiseptic property is mainly made using the cathodic protection of zinc rich primer
With；With the features such as once at low cost, maintenance cost is not high, and antiseptic property is good.
Zinc-rich paint includes inorganic zinc coating and organic zinc-rich paint, and wherein inorganic zinc coating includes aqueous inorganic again
Zinc-rich paint and the molten inorganic zinc coating of alcohol.This kind of coating has electro-chemical protection to steel, and rustless property is excellent；Resistance to sea
Water, oil resistant, resistance to salt, atmospheric corrosion resistance, good conductivity do not influence welding procedure.Inorganic zinc coating can for a long time 400 DEG C with
It is used in upper hot environment；Organic zinc-rich paint can make the priming paint of anticorrosive paint, such as " epoxy zinc rich primer+epoxy micaceous iron paint+
The anticorrosive paint matching system that chlorinated rubber finish " is formed, service life is up to 7-15.Therefore ship both domestic and external, sea
The anticorrosive measures such as foreign production facilities, heat distribution pipeline, bridge, petrochemical equipment pipeline and high frame iron tower, are adopted more and more
By the use of zinc-rich paint as anticorrosive paint.
However, in recent years, since environmental pollution is increasingly severe, the dynamics that Environmental is administered is increasing.Tradition
Organic zinc-rich paint in due to containing the hazardous solvents such as substantial amounts of benzene, dimethylbenzene, butyl acetate, seriously constrain such coating
Development.Aqueous inorganic zinc-enriched coating is favored due to having the characteristics that low VOC content be subject to market.But due to aqueous inorganic
The characteristic of zinc-rich paint in itself, the requirement to pretreatment of base material is higher (Sa2.5 grades), and the flexibility of coating is poor, this
The presence of a little shortcomings causes the development of aqueous inorganic zinc-enriched coating to be restricted.Although the molten inorganic zinc coating of alcohol is in certain journey
Solve the problems, such as that aqueous inorganic zinc-enriched coating flexibility and pre-treatment requirement are high on degree, but the VOC content of itself is higher, together
Sample is faced with the development problem of organic zinc-rich paint.
The environment friendly of powdery paints and energy-saving and emission-reduction advantage are increasingly prominent in recent years, and industry faces good development machine
It meets.Powdery paints as solventless coatings, meet " four E " principle popular in the world (economic, environmental protection, efficiently, performance it is remarkable),
It is and welcomed by the people.Its feature is as follows：
It is simple for process：Powdery paints is to make powder particle charged using electrostatic generator, is equably adsorbed in metal base
On, then by high-temperature fusion and cure and be transformed into a kind of technology of hard protective coating, small investment, coating process is simply square
Just；
Cleaning：Powdery paints is free of solvent, this is undeniable for environmental protection consciousness growing in the world
Advantage.Meanwhile the powdery paints for spraying landing can be with recycling, when spraying, is aided with cyclone dust removal or filter bag removes device so that
Powdery paints is current most clean coating variety, can accomplish 100% environmental protection.
It is economical：Powdery paints is absolutely solid, this mean that almost absolutely formed coating without
Any loss, and can once reach required thickness in spraying, without several layers of spraying.
Efficiently：Powdery paints has remarkable mechanical performance, especially its impact resistance, flexibility and case hardness,
Excellent antiseptic property and resistant to chemical media (acids, bases, solvent etc.) performance also have very high for outdoor series of products
Weatherability, good protection can be provided to base material under the conditions of harsh climate.
《Coating industry Eleventh Five-Year Development Plan is planned》With《Coating industry science and technology Long-and Medium-term Development is planned》Clearly proposing will
Greatly develop environment-friendly powder coating.Coming 10 years, China will significantly cut down ratio of the conventional solvent coating in industrial coating,
Its portion is made to be fallen sharply by current 50% to 5%.And the market share of powdery paints will be risen to by current 18%
40%, finally with 10~15 years, new technology grafting and transformation are carried out traditional coating industry, most conventional solvent coating at last
The market share is reduced to less than 1%.These development for being planned to environment-friendly powder coating provide opportunity.Include aqueous painting from now on
Environment-friendly type coating including material and powdery paints will progressively substitute traditional solvent-borne coating, become the leading products in market.
Powdery paints kind is numerous, including a variety of colors, the product of various fine arts textures and bloom, unglazed and other effects.Tree
Lipid type includes the various series of products such as epoxy polyester (mixing) type, epoxy type, polyester-type, polyurethane-type, and kind substantially can be with
Solvent-borne type industrial antisepsis coating is suitable.But powdery paints due to do not possess to zinc-rich paint electrochemical cathodic protection effect,
So that powdery paints in heavy antisepsis field in application, must combine galvanizing, electrogalvanizing or other cathodic protection system applications,
Which not only improves the significant wastages that project cost also results in resource.
The content of the invention
Technical problem：The defects of in order to solve the prior art, the present invention provides a kind of steel structure surface protection VCI powder
Last zinc-rich paint.
Technical solution：A kind of steel structure surface protection VCI powder zinc-rich paint provided by the invention, including following weight
The component of part：Including base-material, filler, VCI vapour phase inhibitors and auxiliary agent；The base-material include 20~50 parts of epoxy powder resins,
20~50 parts of polyester powder resins,；The filler include 30~60 parts of zinc flakes, 5~10 parts of aluminium triphosphates, 5~10 parts
Trbasic zinc phosphate；The auxiliary agent for levelling agent, conductive agent, degasser, one or more of；The mass ratio of the base-material and filler is
3:1~3:7；The quality of the VCI vapour phase inhibitors is the 5~10% of base-material and filler gross mass；The quality of the auxiliary agent is
The 2~10% of base-material and filler gross mass.
Preferably, the levelling agent is poly- ethyl propionate, butyl acetate, dimethyl polysiloxane, polyvinyl butyral
In one or more.
As another preferred embodiment, the conductive agent is non-metal powder, preferably graphite or amorphous carbon black.
As another preferred embodiment, the degasser is styrax, one or two kinds of in bisamide wax.
As another preferred embodiment, the auxiliary agent is mass ratio (25~50)：(35~60)：The levelling agent of (5~20), conduction
One or more of agent, degasser.
The present invention also provides the preparation method of above-mentioned steel structure surface protection VCI powder zinc-rich paint, including following
Step：
(1) epoxy powder resin, polyester powder resin, zinc flake, aluminium triphosphate, trbasic zinc phosphate and auxiliary agent are added to
It in high-speed mixer, mixes and crushes, obtain uniform mixture；
(2) mixture made from step (1) is added in extruder, melting extrusion；Extrusion temperature：Preceding 80 DEG C of temperature~
100 DEG C, rear 110 DEG C~130 DEG C of temperature；
(3) heat that step (2) extruder squeezes out is melted state species to roll by tablet press machine pressure roller, forms 1~2mm thickness
Ribbon, be broken into sheet material after cooling；
(4) sheet material made from step (3) is repeated to add obtained product after step (1) to step (3) 1~3 times
Enter and fine grinding is carried out in flour mill；
(5) sieve to get.
Advantageous effect：Steel structure surface protection provided by the invention was both good with powdery paints with VCI powder zinc-rich paint
Good shielding action, and the cathodic protection effect with quite general zinc-rich paint, at the same it is slow also with VCI vapour phase inhibitors
Effect is lost, so as to reach the protection effect excellent to metal base.In addition, work of the present invention using different weather-proof resin blendings
Skill makes such powdery paints have weatherability more more excellent than general powdery paints.
VCI is the english abbreviation of vapour phase inhibitor (Volatile Corrosion Inhibitor), is through special synthesis
A kind of corrosion inhibitor that technique, compounding are prepared.It individually or can depend on suitable carrier, at normal temperatures and pressures directly
Gasification；In any spatial gaps in sealed environment by itself adjustable lasting volatilization and in operation unit, all
The mixed gas containing the VCI antirust factors can be filled, this gas can adsorb thereon when meeting with metal surface, and there are one formation only
Or the fine and close protection film layer of several molecule thicks；The protection film layer can effectively completely cut off metal surface and moisture, oxygen and other are harmful
The contact of atmospheric corrosion factor inhibits to promote the generation of the electrochemical reaction of metal erosion, so as to reach optimal anti-corrosion effect
Fruit.
And zinc flake (piece zinc) is that spherical zinc powder is made by ball-milling technology.Piece zinc is as metal packing application
In coating, the coating formed has good protective effect to iron-based body, is mainly reflected in following three aspects：1st, electrochemistry side
Face since the current potential of zinc is more negative than iron, has good electro-chemical protection to iron-based body；2nd, sealing and leakproofness,
Due to corrosion reaction object (mainly basic zinc carbonate, the 2ZnCO of zinc powder3、3Zn(OH)2) be deposited between zinc particle, it clogs
Gap between pigment, but it is non-conductive, so as to play the role of closing to coating；3rd, shield effectiveness, due to flake zinc powder
It is arranged in the coating parallel to film coated surface, and overlaps each other and interlock, considerably increased water and corrosive medium penetrates coating
Distance, so as to improve the anti-corrosion capability of coating.
The synergistic effect of zinc flake and VCI in the present invention, since laminal filter has good shield effectiveness, when VCI points
When sub slowly release, the parallel bridging arrangement of laminal filter is provided for the film of one layer of closing, can significantly reduce
The diffusion rate of VCI molecules, so as to play good corrosion inhibition to metallic matrix.
Specifically, steel structure surface provided by the invention protection VCI powder zinc-rich paint has following prominent excellent
Gesture：
1st, rust-proof effect is comprehensive.No matter metal surface rule whether, can it is comprehensive prevent corrosion, do not stay any dead angle.
2nd, rust-proof life limit for length.Generally 2-5, it is specially treated, up to 10 years or more.
3rd, the unimolecule protective layer formed after VCI gasifications, will not damage the material of metal product, without any side effects.
4th, rustless property is distinguished.Even in the hot and humid high corrosion atmospheric environment high in salt as transport by sea
In, it can also make metal is protected to exempt from corrosion infringement.
5th, it is hygienic, safe and environment-friendly.Injury will not be generated to human body, environmental pollution will not be caused.
Description of the drawings
Fig. 1 is existing galvanizing construction technology.
Specific embodiment
The raw material that the present invention uses is shown in Table 1.
The raw material that 1 present invention of table uses
Wherein, the VCI vapour phase inhibitors are：4-(N, N-di-n-butyl)-amine methyl morpholines, benzoic acid morpholine, amino
The arbitrary ratio of acid methyl ester, phosphoric acid bicyclohexylamine, six methine imines of o-nitrobenzoic acid, the one or more of benzotriazole
Example mixing；Consisting of the prior art.
Steel structure surface of the present invention is protected below and is further illustrated with VCI powder zinc-rich paint.
Embodiment 1
Steel structure surface protection VCI powder zinc-rich paint includes the component of following parts by weight：Including base-material, filler,
VCI vapour phase inhibitors and auxiliary agent；The base-material includes 20 parts of epoxy powder resin E-12,50 parts of polyester powder resin T940；Institute
Stating filler includes 30 parts of zinc flakes, 10 parts of aluminium triphosphates, 10 parts of trbasic zinc phosphates；The auxiliary agent is mass ratio 25：60：5 stream
One or more of flat agent, conductive agent, degasser；The mass ratio of the base-material and filler is 3:7；The VCI vapor phase corrosion inhibitors
The quality of agent is the 10% of base-material and filler gross mass；The quality of the auxiliary agent is the 2% of base-material and filler gross mass.
Levelling agent is poly- ethyl propionate, butyl acetate, dimethyl polysiloxane, polyvinyl butyral；Conductive agent is graphite
Or amorphous carbon black；Degasser is styrax, bisamide wax；The light stabilizer is polybutadiene acid esters.
Its preparation method comprises the following steps：
(1) by epoxy powder resin, polyester powder resin, polyflon, organic siliconresin, zinc flake, three
Poly aluminium phosphate, trbasic zinc phosphate and auxiliary agent are added in high-speed mixer, are mixed and are crushed, and obtain uniform mixture；
(2) mixture made from step (1) is added in extruder, melting extrusion；Extrusion temperature：Preceding 80 DEG C of temperature, after
110 DEG C of temperature；
(3) heat that step (2) extruder squeezes out is melted state species to roll by tablet press machine pressure roller, forms 1~2mm thickness
Ribbon, be broken into sheet material after cooling；
(4) sheet material made from step (3) is repeated to add obtained product after step (1) to step (3) 1~3 times
Enter and fine grinding is carried out in flour mill；
(5) sieve to get.
Technological process is：Mixing → melting extrusion → tabletting cooling → crushing → fine grinding → screening.
Embodiment 2
Steel structure surface protection VCI powder zinc-rich paint includes the component of following parts by weight：Including base-material, filler,
VCI vapour phase inhibitors and auxiliary agent；The base-material includes 50 parts of epoxy powder resin E-12,30 parts of polyester powder resin T9401；Institute
Stating filler includes 60 parts of zinc flakes, 5 parts of aluminium triphosphates, 5 parts of trbasic zinc phosphates；The auxiliary agent is mass ratio 50：35：20 levelling
Agent, conductive agent, degasser, one or more of；The mass ratio of the base-material and filler is 3:1；The VCI vapour phase inhibitors
Quality be the 5% of base-material and filler gross mass；The quality of the auxiliary agent is the 10% of base-material and filler gross mass.
Levelling agent is poly- ethyl propionate, butyl acetate, dimethyl polysiloxane, polyvinyl butyral；Conductive agent is graphite
Or amorphous carbon black；Degasser is styrax, bisamide wax.
Its preparation method comprises the following steps：
(1) by epoxy powder resin, polyester powder resin, polyflon, organic siliconresin, zinc flake, three
Poly aluminium phosphate, trbasic zinc phosphate and auxiliary agent are added in high-speed mixer, are mixed and are crushed, and obtain uniform mixture；
(2) mixture made from step (1) is added in extruder, melting extrusion；Extrusion temperature：Preceding 100 DEG C of temperature, after
130 DEG C of temperature；
(3) heat that step (2) extruder squeezes out is melted state species to roll by tablet press machine pressure roller, forms 1~2mm thickness
Ribbon, be broken into sheet material after cooling；
(4) sheet material made from step (3) is repeated to add obtained product after step (1) to step (3) 1~3 times
Enter and fine grinding is carried out in flour mill；
(5) sieve to get.
Technological process is：Mixing → melting extrusion → tabletting cooling → crushing → fine grinding → screening.
Embodiment 3
Steel structure surface protection VCI powder zinc-rich paint includes the component of following parts by weight：Including base-material, filler,
VCI vapour phase inhibitors and auxiliary agent；The base-material includes 40 parts of epoxy powder resin E-12,40 parts of polyester powder resin T9401；Institute
Stating filler includes 45 parts of zinc flakes, 7 parts of aluminium triphosphates, 8 parts of trbasic zinc phosphates；The auxiliary agent is mass ratio 35：45：15 levelling
One or more of agent, conductive agent, degasser；The mass ratio of the base-material and filler is 3:4；The VCI vapour phase inhibitors
Quality be the 7% of base-material and filler gross mass；The quality of the auxiliary agent is the 6% of base-material and filler gross mass.
Levelling agent is poly- ethyl propionate, butyl acetate, dimethyl polysiloxane, polyvinyl butyral；Conductive agent is graphite
Or amorphous carbon black；Degasser is styrax, bisamide wax；.
Its preparation method comprises the following steps：
(1) by epoxy powder resin, polyester powder resin, zinc flake, aluminium triphosphate, trbasic zinc phosphate and auxiliary agent add in
It into high-speed mixer, mixes and crushes, obtain uniform mixture；
(2) mixture made from step (1) is added in extruder, melting extrusion；Extrusion temperature：Preceding 90 DEG C of temperature, after
120 DEG C of temperature；
(3) heat that step (2) extruder squeezes out is melted state species to roll by tablet press machine pressure roller, forms 1~2mm thickness
Ribbon, be broken into sheet material after cooling；
(4) sheet material made from step (3) is repeated to add obtained product after step (1) to step (3) 1~3 times
Enter and fine grinding is carried out in flour mill；
(5) sieve to get.
Technological process is：Mixing → melting extrusion → tabletting cooling → crushing → fine grinding → screening.
The steel structure surface protection VCI powder zinc-rich paint performances of testing example 1 to 3, the results are shown in Table 2.
The steel structure surface protection VCI powder zinc-rich paint performances of 2 embodiment 1 to 3 of table
| Salt spray test time h | Ultraviolet aging resistance time h | Adhesive force (cross-hatching) | |
| Commercially available ordinary powder | 500 | 500 | 1 grade |
| 1 coating of embodiment | ≥3000h | ≥800h | 1 grade |
| 2 coating of embodiment | ≥3000h | ≥800h | 1 grade |
| 3 coating of embodiment | ≥3000h | ≥800h | 1 grade |
Claims (2)
1. a kind of steel structure surface protection VCI powder zinc-rich paint, it is characterised in that：It is made of the following components：Base-material is filled out
Material, VCI vapour phase inhibitors and auxiliary agent；The base-material is made of the component of following parts by weight：20 ~ 50 parts of epoxy powder resins, 20
~ 50 parts of polyester powder resins；The filler is made of the component of following parts by weight：30 ~ 60 parts of zinc flakes, 5 ~ 10 parts of trimerization phosphorus
Sour aluminium, 5 ~ 10 parts of trbasic zinc phosphates；The auxiliary agent is by mass ratio（25~50）：（35~60）：（5~20）Levelling agent, conductive agent, degassing
Agent form, the levelling agent for poly- ethyl propionate, butyl acetate, dimethyl polysiloxane, one kind in polyvinyl butyral or
Person is a variety of, and the conductive agent is graphite or amorphous carbon black, and the degasser is styrax, one kind in bisamide wax or two
Kind；The mass ratio of the base-material and filler is 3:1~3:7；The quality of the VCI vapour phase inhibitors is base-material and filler gross mass
5 ~ 10%；The quality of the auxiliary agent is the 2 ~ 10% of base-material and filler gross mass.
2. the preparation method of steel structure surface protection VCI powder zinc-rich paint described in claim 1, it is characterised in that：Bag
Include following steps：
（1）Epoxy powder resin, polyester powder resin, zinc flake, aluminium triphosphate, trbasic zinc phosphate and auxiliary agent are added at a high speed
It in mixer, mixes and crushes, obtain uniform mixture；
（2）By step（1）Mixture obtained is added in extruder, melting extrusion；Extrusion temperature：Preceding 80 DEG C ~ 100 DEG C of temperature,
110 DEG C ~ 130 DEG C of temperature afterwards；
（3）By step（2）The heat that extruder squeezes out is melted state species and is rolled by tablet press machine pressure roller, forms the band of 1 ~ 2mm thickness
Shape object is broken into sheet material after cooling；
（4）By step（3）Sheet material obtained repeats step（1）To step（3）Obtained product is added in after 1 ~ 3 time and is milled
Fine grinding is carried out in machine；
（5）Sieving to get.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610026974.6A CN105602415B (en) | 2016-01-15 | 2016-01-15 | Steel structure surface protection VCI powder zinc-rich paint and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610026974.6A CN105602415B (en) | 2016-01-15 | 2016-01-15 | Steel structure surface protection VCI powder zinc-rich paint and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105602415A CN105602415A (en) | 2016-05-25 |
| CN105602415B true CN105602415B (en) | 2018-05-22 |
Family
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| CN108003685A (en) * | 2017-12-01 | 2018-05-08 | 成都信达高分子材料有限公司 | A kind of fine arts zinc-rich anti-corrosive powder paint |
| CN107987666A (en) * | 2017-12-01 | 2018-05-04 | 成都信达高分子材料有限公司 | A kind of zinc-rich double antiseptic powder coating |
| CN109265935A (en) * | 2018-09-06 | 2019-01-25 | 维希艾防锈新材料(上海)有限公司 | VCI nanometers of intercept type rust-preventing films |
| CN109401532A (en) * | 2018-09-17 | 2019-03-01 | 中航百慕新材料技术工程股份有限公司 | Graphene powder zinc-rich paint and preparation method thereof |
| CN110240743A (en) * | 2019-06-11 | 2019-09-17 | 苏州特聚新材料科技有限公司 | A kind of intercept type antirust film and preparation method |
| CN110791180A (en) * | 2019-11-01 | 2020-02-14 | 江苏振光电力设备制造有限公司 | VCI coating for iron tower |
| CN111001981A (en) * | 2019-11-01 | 2020-04-14 | 江苏振光电力设备制造有限公司 | Preparation method of weather-resistant bolt for iron tower |
| CN114102898A (en) * | 2021-11-29 | 2022-03-01 | 泗洪百慕科技有限公司 | VCI powder zinc-rich coating for steel structure surface protection and preparation process thereof |
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| CN101033364A (en) * | 2006-03-07 | 2007-09-12 | 徐州正菱涂装有限公司 | Zinc-based double antiseptic powder coating and preparing method thereof |
| CN104031555B (en) * | 2014-06-03 | 2016-05-25 | 北京科技大学 | A kind of zinc protective layer of spraying is certainly repaired coating and preparation method |
| CN104789090B (en) * | 2015-04-22 | 2017-07-14 | 中航百慕新材料技术工程股份有限公司 | A kind of flexible epoxy anticorrosion priming paint and preparation method thereof |
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