CN105602416B - VCI powdered-metal topcoat paints and preparation method thereof - Google Patents
VCI powdered-metal topcoat paints and preparation method thereof Download PDFInfo
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- CN105602416B CN105602416B CN201610027681.XA CN201610027681A CN105602416B CN 105602416 B CN105602416 B CN 105602416B CN 201610027681 A CN201610027681 A CN 201610027681A CN 105602416 B CN105602416 B CN 105602416B
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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
- 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
- C09D5/08—Anti-corrosive paints
- C09D5/10—Anti-corrosive paints containing metal dust
- C09D5/103—Anti-corrosive paints containing metal dust containing Al
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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
- C09D7/48—Stabilisers against degradation by oxygen, light or heat
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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
- 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
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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
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- 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 VCI powdered-metals topcoat 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 30 parts~50 parts polyester powder resins, 5 parts~15 parts polyflons, 3 parts~5 parts curing agent；The filler includes 1 part~5 parts flake aluminums or pearl powder, 20 parts~40 parts barium sulfate；The auxiliary agent is levelling agent, the one or more in conductive agent, degasser, light stabilizer；The base-material, the mass ratio of filler are 3:1~2:3；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 good shielding action of the coating, and the corrosion mitigating effect with VCI vapour phase inhibitors, so as to reach the protection effect excellent to metal base.The present invention has excellent dicoration and weatherability at the same time.
Description
Technical field
The invention belongs to paint field, more particularly to a kind of VCI powdered-metals topcoat paint.
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 above 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 produce substantial amounts of acid waste liquid, activation and exposure processing stage using 20% hydrochloric acid
Substantial amounts of industrial wastewater can be produced 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 groove needs to maintain more than 470 DEG C 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 produced.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 maintaining zinc groove 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 produce in work progress, and intractability
Greatly, surrounding enviroment are polluted.
(4) zinc resource wastes 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, its antiseptic property is mainly made using the cathodic protection of zinc rich primer
With；It is low with a cost, the features such as 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, does not influence welding procedure.Inorganic zinc coating can for a long time 400 DEG C with
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
Anticorrosive paint is used as by the use of zinc-rich 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 hazardous solvents such as substantial amounts of benzene, dimethylbenzene, butyl acetates, seriously constraining 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, its requirement to pretreatment of base material is higher (Sa2.5 grades), and the pliability 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 pliability 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
Meet.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：
Technique is simple：Powdery paints is to make powder particle powered 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, pliability 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 set 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 to 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 water-based 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, galvanizing, electrogalvanizing or other cathodic protection system applications must be combined,
Which not only improves the significant wastage that project cost also result 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 VCI powdered-metals topcoat paint.
Technical solution：A kind of VCI powdered-metals topcoat paint provided by the invention, includes the component of following parts by weight：Bag
Include base-material, filler, VCI vapour phase inhibitors and auxiliary agent；The base-material include 30 parts~50 parts polyester powder resins, 5 parts~15 parts
Polyflon, 3 parts~5 parts curing agent (TGIC)；The filler include 1 part~5 parts flake aluminums or pearl powder, 20 parts
~40 parts of barium sulfate；The auxiliary agent is levelling agent, the one or more in conductive agent, degasser, light stabilizer；The base-material,
The mass ratio of filler is 3:1~2:3；The quality of the VCI vapour phase inhibitors is the 5~10% of base-material and filler gross mass；Institute
The quality for stating 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 kind in the derivative of rilanit special, bisamide wax
It is or a variety of.
As another preferred embodiment, the light stabilizer for polybutadiene acid esters, benzophenone, one kind in oxanilide or
It is a variety of.
Present invention also offers the preparation method of above-mentioned VCI powdered-metals topcoat paint, comprise the following steps：
(1) polyester powder resin, polyflon, curing agent and auxiliary agent are added in high-speed mixer, mixed
And crush, 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 is extruded 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) obtained product will be added after sheet material repeat step (1) made from step (3) to step (3) 1~3 times
Enter and fine grinding is carried out in flour mill；Sieving；
(5) product of flake aluminum or pearl powder, barium sulfate and step (4) screening is placed in binding machine at binding
Reason；Binding parameter is：Initial mixing temperature is room temperature；Heating 0.5min~3min is 50 DEG C~70 DEG C to starting to bind temperature；
It is 75 DEG C~95 DEG C that the 3min~8min that heats up binds temperature to highest；Cool down 10min~20min to drop temperature be 20 DEG C~40
℃；
(6) sieve, to obtain the final product.
Beneficial effect：VCI powdered-metals topcoat paint provided by the invention had both had the good shielding action of powdery paints,
There is the corrosion mitigating effect of VCI vapour phase inhibitors again, so as to reach the protection effect excellent to metal base.The present invention is using different
The technique of weather-proof resin blending, makes such powdery paints have the weatherability more more excellent than general powdery paints.In addition, this hair
The bright method by binding adds aluminium powder or pearl powder, adds the light reflection effect of coating, while make the powdery paints institute
Obtaining coating has more excellent appearance, improves the dicoration and weatherability of coating in itself.
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, form only one
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, suppresses to promote the generation of the electrochemical reaction of metal erosion, so as to reach optimal anti-corrosion effect
Fruit.
The synergistic effect of flake aluminum 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, VCI powdered-metals topcoat paint provided by the invention has advantage following prominent：
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 more than 10 years.
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 to be protected metal to exempt from corrosion infringement.
5th, it is hygienic, safe and environment-friendly.Injury will not be produced to human body, environmental pollution will not be caused.
Brief description of the drawings
Fig. 1 is existing galvanizing construction technology schematic diagram.
Embodiment
The raw material that the present invention uses is shown in Table 1.
The raw material that 1 present invention of table uses
VCI powdered-metals topcoat paint of the present invention is further illustrated below.
Embodiment 1
VCI powdered-metal topcoat paints, include the component of following parts by weight：Including base-material, filler, VCI vapour phase inhibitors
And auxiliary agent；The base-material includes 30 parts of polyester powder resins, 15 parts of polyflons, 3 parts of curing agent (TGIC)；It is described to fill out
Material includes 1 part of flake aluminum or pearl powder, 40 parts of barium sulfate；The auxiliary agent is levelling agent, conductive agent, degasser, light stabilizer
In one or more；The base-material, the mass ratio of filler are 3:1；The quality of the VCI vapour phase inhibitors is base-material and filler
The 10% of 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) polyester powder resin, polyflon, curing agent and auxiliary agent are added in high-speed mixer, mixed
And crush, 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 is extruded 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) obtained product will be added after sheet material repeat step (1) made from step (3) to step (3) 1~3 times
Enter and fine grinding is carried out in flour mill；Sieving；
(5) product of flake aluminum or pearl powder, barium sulfate and step (4) screening is placed in binding machine at binding
Reason；Binding parameter is：Initial mixing temperature is room temperature；Heating 0.5min is 50 DEG C to starting to bind temperature；3min heat up to most
Height binding temperature is 75 DEG C；Cool down 10min to drop temperature be 20 DEG C；
(6) sieve, to obtain the final product.
Embodiment 2
VCI powdered-metal topcoat paints, include 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 polyester powder resins, 5 parts of polyflons, 5 parts of curing agent (TGIC)；It is described to fill out
Material includes 5 parts of flake aluminums or pearl powder, 20 parts of barium sulfate；The auxiliary agent is levelling agent, conductive agent, degasser, light stabilizer
In one or more；The base-material, the mass ratio of filler are 2:3；The quality of the VCI vapour phase inhibitors is base-material and filler
The 5% of 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；The light stabilizer is benzophenone.
Its preparation method, comprises the following steps：
(1) polyester powder resin, polyflon, curing agent and auxiliary agent are added in high-speed mixer, mixed
And crush, 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 is extruded 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) obtained product will be added after sheet material repeat step (1) made from step (3) to step (3) 1~3 times
Enter and fine grinding is carried out in flour mill；Sieving；
(5) product of flake aluminum or pearl powder, barium sulfate and step (4) screening is placed in binding machine at binding
Reason；Binding parameter is：Initial mixing temperature is room temperature；Heating 3min is 70 DEG C to starting to bind temperature；8min heat up to highest
It is 95 DEG C to bind temperature；Cool down 20min to drop temperature be 40 DEG C；
(6) sieve, to obtain the final product.
Embodiment 3
VCI powdered-metal topcoat paints, include 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 polyester powder resins, 10 parts of polyflons, 4 parts of curing agent (TGIC)；It is described to fill out
Material includes 3 parts of flake aluminums or pearl powder, 30 parts of barium sulfate；The auxiliary agent is levelling agent, conductive agent, degasser, light stabilizer
In one or more；The base-material, the mass ratio of filler are 1:1；The quality of the VCI vapour phase inhibitors is base-material and filler
The 7% of 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；The light stabilizer is oxanilide.
Its preparation method, comprises the following steps：
(1) polyester powder resin, polyflon, curing agent and auxiliary agent are added in high-speed mixer, mixed
And crush, 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 is extruded 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) obtained product will be added after sheet material repeat step (1) made from step (3) to step (3) 1~3 times
Enter and fine grinding is carried out in flour mill；Sieving；
(5) product of flake aluminum or pearl powder, barium sulfate and step (4) screening is placed in binding machine at binding
Reason；Binding parameter is：Initial mixing temperature is room temperature；Heating 1.5min is 60 DEG C to starting to bind temperature；5min heat up to most
Height binding temperature is 85 DEG C；Cool down 15min to drop temperature be 30 DEG C；
(6) sieve, to obtain the final product.
The VCI powdered-metal topcoat paint performances of testing example 1 to 3, the results are shown in Table 2.
The VCI powdered-metal topcoat 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 | 300~500h | 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)
- A kind of 1. VCI powdered-metals topcoat paint, it is characterised in that：It is made of following component：Base-material, filler, VCI vapor phase corrosion inhibitors Agent and auxiliary agent；The base-material is made of the component of following parts by weight：30 parts ~ 50 parts polyester powder resins, 5 parts ~ 15 parts polytetrafluoros Vinyl, 3 parts ~ 5 parts curing agent TGIC；The filler includes 1 part ~ 5 parts flake aluminums or pearl powder, 20 parts ~ 40 parts sulfuric acid Barium；The auxiliary agent is made of the one or more in levelling agent, conductive agent, degasser, light stabilizer, and the levelling agent is poly- third One or more in acetoacetic ester, butyl acetate, dimethyl polysiloxane, polyvinyl butyral, the conductive agent are graphite Or amorphous carbon black, the degasser is styrax, the one or more in the derivative of rilanit special, bisamide wax, The light stabilizer is polybutadiene acid esters, the one or more in benzophenone, oxanilide；The matter of the base-material, filler Amount is than being 3:1~2:3；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 For the 2 ~ 10% of base-material and filler gross mass.
- 2. the preparation method of the VCI powdered-metal topcoat paints described in claim 1, it is characterised in that：Comprise the following steps：（1）Polyester powder resin, polyflon, curing agent and auxiliary agent are added in high-speed mixer, mixes and breaks It is broken, obtain uniform mixture；（2）By step（1）Obtained mixture 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 of extruder extrusion is melted state species and is rolled by tablet press machine pressure roller, forms the band of 1 ~ 2mm thickness Shape thing, sheet material is broken into after cooling；（4）By step（3）Obtained sheet material repeat step（1）To step（3）Obtained product is added after 1 ~ 3 time and is milled Fine grinding is carried out in machine；Sieving；（5）By flake aluminum or pearl powder, barium sulfate and step（4）The product of screening is placed in binding in binding machine and handles；Tie up Determining parameter is：Initial mixing temperature is room temperature；Heating 0.5min ~ 3min is 50 DEG C ~ 70 DEG C to starting to bind temperature；Heat up 3min It is 75 DEG C ~ 95 DEG C that ~ 8min binds temperature to highest；Cool down 10min ~ 20min to drop temperature be 20 DEG C ~ 40 DEG C；（6）Sieving, to obtain the final product.
Priority Applications (1)
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| CN108034339A (en) * | 2017-12-21 | 2018-05-15 | 青岛海棠万达工贸有限公司 | Engineering machinery is disguised and preparation method thereof with paint |
| CN108384411B (en) * | 2018-02-09 | 2020-04-24 | 杭州五源科技实业有限公司 | Woodwork photocuring conductive powder coating and preparation method thereof |
| CN109354978A (en) * | 2018-09-17 | 2019-02-19 | 中航百慕新材料技术工程股份有限公司 | Graphene powder metal topcoat paint and preparation method thereof |
| CN109486343A (en) * | 2018-09-17 | 2019-03-19 | 中航百慕新材料技术工程股份有限公司 | Graphene powder bimetallic coating and preparation method thereof |
| 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 |
| CN111019489B (en) * | 2019-12-12 | 2021-11-23 | 广东华江粉末科技有限公司 | FEVE fluorocarbon metal powder coating for metal surface and preparation method thereof |
| CN112724804A (en) * | 2020-12-29 | 2021-04-30 | 老虎表面技术新材料（清远）有限公司 | Powder coating composition with color changing effect and coating thereof |
| CN116063909A (en) * | 2023-02-21 | 2023-05-05 | 江苏旌翔建材科技有限公司 | Environment-friendly wear-resistant polymer enamel paint |
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